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A small green rectangle of light beside a much larger one

The same surface twice: what a screen shows, and what a hand holds.

On a computer, REGA is a three-column command post: you watch a stream. On a phone the question is no longer the same — it is see a drop and buy with your thumb. The interface does not merely shrink: it chooses what it gives up, and the order of those sacrifices is not left to chance.
The REGA stream on a phone, two listings visible and the full-width BUY button

The stream on a 390 px phone: reduced header, one listing at a time, BUY across the full width, tab bar at the bottom.

The rule that governs this whole page: what informs gives way, what acts stays. A counter, a label, a screen title, a context reminder — all of that falls. A switch, a price, a BUY button — never. The BUY button does not shrink at any point: on a phone it even gains a whole row, across the full width of the card.

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The four widths

REGA knows four layouts, and they trigger on the width of the window — never on the type of device. Each tier keeps everything the previous one has already removed.
The tiers are pure width, and that is deliberate. An iPad held in portrait (744 to 834 px) therefore gets the phone layout — bottom tab bar, single column — on a screen more than 1000 px tall. Target size, on the other hand, does not follow the width but the finger: every touch screen gets its 44 px targets, including a 1024 px iPad Pro that is not in the phone tier at all.
The sidebar disappears entirely, and seven navigation entries do not fit under a thumb: at 390 px each would fall below the minimum touch target, and nobody would read their labels. So REGA keeps four, plus a fifth button that calls up the rest.
Inside the More sheet, every entry gets its full label back — it is no longer an icon to guess at. If you often go to Sales or Accounts, that is two gestures instead of one: on a phone those are the screens you consult, not the ones you act from in a hurry.
On the screenshots in this page, an Administration button takes up room in the header. REGA staff only — this button does not appear on your account. In practice your header has more room than the images show, and at 390 px that is the difference between a readable account name and a truncated one.

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What disappears from the header, and why

The header is the most contested surface in the product: below 900 px there is simply not the room for everything it carries on a computer. Here is what gave way, in order. Below 900 px Below 430 px
Two elements fall at no width at all: the AUTOBUY switch and the indicator of the account that pays. They are the only two elements of the shell that touch money. Everything else is negotiable; these two are not.

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Screen by screen

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The feed

The REGA feed on a phone in Folder layout

The feed: one single layout, the photo on the left, the thumbnail rail below, BUY on its own row.

Below 900 px, the layout is imposed: Wall and Table are not offered. If you look for them, REGA answers On a phone there is only one layout. Below 900 px there is only ONE feed, always. REGA says so itself: Only one feed on this screen — two bands would fall below the readable card width. An iPad held in portrait is below that threshold: it too opens only one. Two feeds side by side are a computer thing, and only where the measured width accepts them — when it does not, the screen says so (One more feed would fall below the readable card width.) instead of shrinking the cards. This is not a punishment: it is where the phone takes back what the old compact card used to withhold. The photo becomes a far larger block, and the thumbnail carousel returns — the other photos of a listing are reachable from the card, without opening it. What the card gives up, and where to find it again:
Scrolling the feed freezes it. Forty pixels are enough — and on a phone, scrolling is the default gesture. That is intentional: we do not want the list moving under the thumb aiming at BUY. The freeze announces itself with a sticky NEW banner preceded by the count; tapping it puts the list back at the top. Exception: when AUTOBUY is armed, the feed no longer freezes — the machine buys, the human is not aiming.

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Filters

The REGA Filters screen on a phone

Filters: the summary and the cap fall, both switches stay.

  • Below 1280 px: the heading of the autobuy column falls, the switch stays.
  • Below 900 px: the detections counter falls (it informs); the grid drops to one column; the header actions take the full width.
  • Below 599 px: the row summary and the filter’s cap disappear too. The name, the autobuy switch and the ⋯ never fall.
  • Every settings window sticks to the bottom of the screen and reserves room for the phone’s home bar.
Creating or reworking a filter from a phone is possible, but it is the least comfortable gesture in the product: the window is tall, it scrolls, and the filter’s cap — the only money bound that really follows automatic buying — is no longer readable on the row at that width. Build your filters on a computer, use them from your phone.

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Orders

The REGA Orders screen on a phone, four orders visible

Orders: the rows of filter chips scroll in place instead of stacking onto five lines.

This is the screen that changes the most. Its sticky toolbar carries five view chips and nine status chips: stacked, they would take a large part of the screen and keep it, permanently. Each row scrolls in place instead, and the toolbar keeps a fraction of the height it would otherwise cost.
  • An order row goes from 4 rows to 2.
  • The Kanban stacks: its eight columns cannot be read side by side at that width, so it is presented one column per row.
  • The conversation thread becomes a panel you call up, instead of a column.
  • Below 700 px, the link to a pick-up point’s map falls — the parcel count and the waiting marker stay visible, they are the only two pieces of information that decide whether you travel. It is the address that gets abridged, never them.

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Tracked

The REGA watchlist on a phone, three tracked items

Tracked: the Refine button stands in for brand, category and price bounds.

  • The layout selector is not rendered at all. Grid needs 760 px, Table needs 1100: at 390 px only List would remain, and a selector with one entry is a dead control. REGA does not hide an unavailable option: it does not offer it.
  • If you shrink the window below the floor, the display falls back to List without erasing your choice: it returns as soon as the room returns.
  • Brand, category and price bounds move behind a Refine button, whose tooltip reads Brand, category and price bounds. When filters are active, it gives their number.
  • The card goes from 7 rows to 3. Nothing is removed: what was stacked is laid side by side. You see three tracked items at once.

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Sales

The REGA Sales screen on a phone, two cards per row

Sales: the photo stops being portrait, two cards fit per row.

This is the screen that suffers most from a narrow width, because its header and its context block sit above the cards. The photo stops being portrait and becomes square, and the context block is cut short: at 390 × 844 you see 2 whole cards. Below 560 px, a sentence appears above the table: ◂ the table scrolls sideways ▸. It is hidden everywhere else, and shows up only at the width where the overflow is real.

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Accounts

The REGA Accounts screen on a phone, the two marketplaces stacked

Accounts: the list alone. An account's detail sheet takes the whole screen, and an arrow brings you back here.

This is the only screen that becomes a master-detail. On a phone, only one of the two columns is on screen at a time: the list, or the sheet. The other is not removed — it is one arrow away, ← Back to the list. The two marketplace doors (Vinted, Vestiaire Collective) stack below 719 px: a half-width door on a phone becomes a target you miss. And a group’s member list is capped at 48 % of the screen height — otherwise it would stop you reaching the save button.

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Stats

The REGA Statistics screen on a phone

Stats: no screen title, the periods scroll on a single row.

The screen title disappears: the navigation bar already says where you are, and it cost a whole row on the screen that has the fewest left. The only remaining landmark is the active tab at the bottom. Every row of chips is gathered onto one single scrolling line.

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Settings

The REGA Settings screen on a phone

Settings: the sections scroll on one row, the setting rows get more breathing room.

This is the most important screen to know from a phone, because three things exist only there: the language, the purchase ceiling, and switching alerts on for this device. Confirmation actions switch to a full-width column, with the cancel option above the irreversible one: under a thumb, position matters more than colour.
These three rules apply on every screen as soon as you are on a touch screen or below 900 px. They explain most of the surprises.

Menus come up from the bottom

A ⋯ menu, a selector, a list of choices: everything opens stuck to the bottom of the screen, where the thumb is — never underneath the button you just tapped.

Windows become sheets

Full width, rounded at the top, capped at 92 % of the height, and with their own internal scroller. Without it, anything taller than the window would be physically out of reach.

Everything becomes reachable by finger

Filter chips, fields and controls are all raised to 44 px. Targets that are too small are enlarged by their sensitive area, not by their drawing — the screen does not get bigger, it gets touchable.
A page’s primary button takes the full width — but no further: past a certain width a button is no longer a target, it is a bar.
A narrow, tall vertical rectangle of green light on a black background

A tall, narrow band of light standing in the dark — the shape a screen takes once it is held in one hand.

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Money, from a phone

This is the section to read twice. Nothing that follows depends on screen size, but all of it takes on a different meaning there — because a phone locks, goes into a pocket, and loses signal.
1

Automatic buying runs on our servers

Arming the AUTOBUY switch from your phone arms the server. It survives closing the tab, closing the browser, switching the device off. The line Where automatic buying runs — on our servers — closing the tab does not stop it — states that fact; it is not a switch you set. The only gesture that stops it is disarming it.
2

Three distinct ceilings, from the widest to the narrowest

Purchase ceiling (Settings → BUYING) applies to every purchase, manual and automatic, on every machine — Above this amount, the purchase is refused and you are told. Empty = no ceiling. It is empty by default, and once set it also refuses an item whose price cannot be read. · Cap per item lives in the dashboard’s AUTOBUY panel, is 120 € by default and is remembered only in that one browser. · A filter’s cap only bounds that filter’s automatic buying.
3

The pick-up point: two things not to confuse

Automatic pick-up point (Settings) is on by default, and its text is blunt: rega chooses the collection point during the purchase. Turned off, the purchase fails for want of a pick-up point — leave it on. Turned off, the purchase fails with No pick-up point could be selected for this order. — nothing asks anyone anything. That is a different thing from PREPARE THIS CARRIER (Accounts screen), which is a REAL purchase of a few euros, once per account and per carrier, and which remains optional.
4

An interrupted payment is never replayed

If the connection drops at the moment of paying, the outcome is unknown: replaying would risk a double charge. So REGA does not replay. On a phone — a lift, a train, a bad signal — this is the case that will happen to you. The move: open Orders and look, before retrying anything.
Cap per item does not travel. It is remembered in the browser where you set it: the value set on your computer does not exist on your phone, and vice versa. If you want a bound that applies everywhere and to everyone, that is the Purchase ceiling in Settings — and to bound an automatic purchase, it is the filter’s cap.
PREPARE THIS CARRIER saves ~1.3 s on every later purchase shipped by that carrier, and that gain is not additive: it is the seller who picks the carrier. Preparing several widens the share of your purchases that gain that time; it never increases the gain itself.

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Drop alerts: the only chain that matters

A phone without alerts is just one more screen. Here is the complete chain, and the two places where it breaks in silence.
1

Tick “Notify me” on the filter — nowhere else

This is the most forgotten switch, and REGA says so itself: Only fires for the filters that asked for it — the switch lives on each filter. Its help text, inside the filter window: One notification on every detection by this filter — photo, brand, title and price. No cap is applied: a wide filter will produce a lot of them.
2

Switch the device on

Settings → Notifications → This device → Switch on for this device. The button Asks the browser for permission, then registers this device. The state you want is Device switched on ✓. Every phone, every computer is switched on separately.
3

On iPhone: add rega to the home screen, or nothing arrives

From a plain Safari tab, REGA refuses and tells you why: On iPhone, alerts require adding rega to the home screen (Share → Add to Home Screen), then opening it from there. Do it, then reopen REGA from the icon.
4

Check it really worked

Settings → DEVICES AND CONNECTIONS. The Mode row must read Installed on the home screen and not Browser tab. The Alerts row must read Allowed.
There is no rate floor on alerts, deliberately. You choose which filters notify, so you choose the volume. An unmanageable flow always comes from a filter that is too wide, never from a missing setting.

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What you cannot do from a phone

Said plainly, so you do not go looking for it.

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Splitting the work

The right way to use REGA is neither “everything on the phone” nor “everything on the computer”. It is a split, and it follows directly from what each width can do.

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Our advice

On iPhone it is mandatory: without it, alerts do not exist — Safari only grants them to an application added to the home screen. Everywhere else it is still the right setting: the application opens full screen, room is reserved for the notch, and the header no longer slides under the status bar. Then check in Settings → DEVICES AND CONNECTIONS that Mode reads Installed on the home screen.
The filter (Notify me), the device (Switch on for this device), and the alert type. Forgetting one gives you a silence you cannot diagnose — and then you believe the product is broken. If you hear nothing, go back over all three in that order before any other hypothesis.
There is no rate floor whatsoever. A wide filter set to notify, on a phone, produces a flood you will end up muting at system level — and you will mute the alerts that mattered along with it. Keep the wide filter in the feed, and reserve alerts for filters where every detection deserves your thumb.
First the obvious one: buying runs on our servers, you can lock the screen and pocket the phone. Then the detail nobody guesses: when armed, the feed no longer freezes on scroll. That is exactly the right “watching while walking” mode — disarmed, forty pixels of scroll are enough to freeze the list.
On a narrow screen a long name is shortened, and with two marketplaces connected (Vinted + Vestiaire) there is less room still for each of them. A name shows in full from 768 px upwards — but on a phone, a short name is the only way to read who pays without opening the tooltip.
The dashboard’s Cap per item does not follow you from device to device: set on your computer, it does not exist on your phone. The bound that applies everywhere is the Purchase ceiling in Settings; the one that bounds an automatic purchase is the filter’s cap (Cap per item — leave empty to impose no cap). Set them from the computer, once.
It is the out-of-the-box setting, and it is counter-intuitive: Compact is not more compact here — the phone tier already tightens the margins, and the compact setting gives some of them back. The setting that really shows more cards is a different one: Text size → Compact (More listings on screen).
On a phone, a ⋯ or a selector opens at the bottom of the screen, never under the button. This is not cosmetic: it is what removed truncated menus, where entries fell outside the frame and became unreachable. And if a window looks cut off at the bottom, it scrolls internally — put your finger inside it, not on the page.
The language follows the person, not the device: chosen on your computer, it catches up with you on your phone when you open it. It also governs your e-mails — The interface, the messages and the e-mails. It is in Settings → APPEARANCE, and nowhere else.
PREPARE THIS CARRIER is a real purchase of a few euros, once per account and per carrier. It is optional: without it the purchase still completes, simply ~1.3 s slower on the items shipped by that carrier. Do it on the Accounts screen, calmly — on a phone it is a master-detail, one sheet at a time, and the ← Back to the list arrow brings you back.

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What surprises people

The tiers are pure width. An iPad in portrait (744 to 834 px) therefore gets the bottom tab bar and the imposed layout — on a screen more than 1000 px tall. That is deliberate. And it opens one single feed, exactly like a 390 px phone: below 900 px there is only ONE feed, always. Two feeds side by side are a computer thing, and only where the measured width accepts them.
Because the touch target does not depend on the width, it depends on the finger. A tablet is not a phone, but it is still touched with a finger: every touch screen gets its 44 px targets, whatever its width.
It is not folded away, it is not abbreviated: it is gone. The only landmark is the active tab in the bottom bar. That is a choice: this title cost a whole row on the screen that has the fewest.
Below 430 px the word falls: it is the biggest consumer of width in the bar. A switch is read from its position and its colour, not from its label — and the label comes back at 431 px. A screen reader still hears the full word: we lighten the eye, not the accessibility.
With Vinted and Vestiaire, below 430 px, the second half of the indicator loses its text and keeps only its coloured pill. This is not a disconnection. A missing half would make you believe the marketplace is not connected: it gives up its text, never its presence.
It is rendered at every width, phones included, and its tooltip reads Open the general stream in a detached window. It asks for a 560 × 980 window — a mobile browser ignores those dimensions. Do not count on it from a phone.
On a card the two do not collide: a horizontal swipe turns the carousel without scrolling the page. In the full-screen viewer, every gesture turns a photo and the page does not move. That is intentional.
It is the only red mark in the product, and it is placed so as not to cross a confirmation message. If something is wrong, that is where to look — not at the top of the screen.

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The limits, said plainly

Landscape mode is not handled. Widths alone decide: an iPhone turned sideways (844 px wide) stays in the phone tier, with its 56 px tab bar and its 52 px header on a 390 px height. That case has not been worked through. Hold your phone in portrait.
  • Sales caps out at 2 whole cards at 390 × 844. Four is out of reach without amputating the photo. To compare many sales, it is the same page on a wider screen.
  • On a 320 × 700 screen, the watchlist shows only one card at a time. There is not quite the height for two, and we preferred not to amputate the card to gain one.
  • Below 480 px, a seller’s review count disappears (their username stays). The threshold is on screen width, and it is an acknowledged stopgap rather than a design.
  • The Vestiaire page is not linked from any navigation — not on a phone, not anywhere.
What is verified, on the other hand: on every screen of the product, in French and in English, no horizontal overflow. The page never slides sideways under your finger.

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Going further

The dashboard

The detail of every control in the feed, and what can refuse a purchase.

Filters

Building a narrow filter — the kind that deserves an alert on your phone.

Orders

The orders, the conversations and the parcels at a pick-up point.

Settings

Purchase ceiling, automatic pick-up point, notifications, language, devices.

Accounts

Who pays, and how to prepare a carrier.

The watchlist

What the Refine button does, and what the displayed prices are worth.