Most of your users arrive on a mid-range Android, holding it one-handed, on a connection that drops. We design for that phone and that network first and let the layout grow upwards, which is why the desktop version turns out to be the easy part.
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Six lines of work, in the order they actually happen. Research decides the structure, the structure decides the layout, and nothing gets wider until the narrow version holds.
Six things that decide whether a screen works on a phone, and the tools we reach for in each.
The comfortable arc on a six-inch phone held one-handed is smaller than most layouts assume. Primary actions sit inside it, and anything destructive deliberately does not.
Largest Contentful Paint, layout shift and input delay are design decisions long before they are engineering ones. We agree the numbers first, then design inside them.
Trains, lifts and basements. Every flow gets an offline state, a retry and a message a real person can act on, drawn alongside the happy path rather than after it.
Contrast that survives direct sunlight, targets large enough for an imprecise tap, and a screen-reader order that matches what the eye follows. Tested rather than assumed.
The right keyboard for the field, autofill that fills, and gestures that do not fight the operating system's own. Small details, and the first ones to irritate.
The same tokens carry a layout from 360px up to a desktop dashboard, so one system covers the whole range instead of two designs quietly drifting apart.
We take your product on a mid-range handset over a throttled connection, and send back what we hit: where the layout breaks, which taps miss, what the first screen costs to load, and the three fixes worth doing first.
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Five phases, each ending in something you can open on your own phone and judge for yourself.
Interviews, session recordings and a heuristic pass, all done on the handsets your users actually carry rather than on a desktop browser at full width.
Information architecture, the one primary action per screen, and low-fidelity flows that assume the user is interrupted halfway through.
The narrow layout is drawn, reviewed and signed off before anything wider exists. Every state is drawn with it: empty, loading, offline and error.
A clickable prototype put in front of real users on real phones, on a throttled connection, with a screen-reader pass on the flows that carry the most traffic.
Tokens, documented components, accessibility notes and a written performance budget, handed over in a form your engineers can build from without a meeting.
Every screen is drawn at the narrowest width we support before a wider one exists.
Largest Contentful Paint on a mid-range phone over 4G, agreed before design starts and measured after launch.
Below this, taps start missing. Anything destructive sits outside the thumb arc entirely.
Apps and web products designed and launched since 2018, across six industries.
Real products, real users, real numbers, across health, mobility, delivery and education.
Mood tracking, guided sessions and personalised wellness plans in a warm, calming experience.
Live driver tracking, surge-aware fare estimation and multi-payment support in a fast, reliable app.
Live order tracking, smart dispatch and route optimisation that cut delivery times across 200+ restaurants.
Coach matching, personalised study plans and adaptive progress tracking for 10K+ students.
Figma
Framer
Sketch
Storybook
Lighthouse
Chrome DevTools
Safari
Android
Maze
Hotjar
Google Fonts
Miro
Notion
LoomSix sectors where the phone is the primary screen, not the smaller copy of a desktop one.
Patients booking one-handed in a waiting room, and clinicians on a shared tablet between rooms.
Money moves on a phone, so the confirmation screen matters more than the dashboard behind it.
Most of the traffic is mobile and most of the drop-off is in checkout, so that is where the design work goes.
Drivers use one hand, in daylight, often with no signal, and they will not tolerate a spinner.
Students study on a phone between other things, so sessions have to survive being interrupted.
Buyers browse on a phone and enquire from the listing, so the map and the form carry the whole product.
“Appther built our student competition app exactly the way we envisioned it: easy registration, smooth judging, and real-time results that keep participants engaged.”
“Building a mental health app means every detail has to be handled with care, and Appther got that from day one. The product feels warm, simple, and genuinely helpful.”
“Appther exceeded every expectation, on time and on budget, and the final product has been instrumental in scaling our business. A rare engineering partner.”
“Implementing an ERP across our operations felt daunting at first, but Appther made the transition seamless. Every department now works off a single source of truth.”
Field notes from real builds. No hype, just what worked and what didn't.
A run-through of prototyping tools and what each is good for
The features users now expect, and what that means for your UI
The product and UX mistakes that sink apps after launch
One call gets you an honest read on how your product behaves on a mid-range handset, the three fixes worth doing first, a budget range and a timeline. No deck, no obligation.
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Tell us what you are building, or which screen is losing people. No sales pitch, just a straight answer on scope, timeline and cost.
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