Nigmat Salibayev

Nigmat Salibayev

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Sober iOS

Redesign, streaks, and a community journal that kept users coming back

D7 retention +20% · D21 retention +24% · Top 25% Health & Fitness

Founder & Developer — Assylbek Issatayev

Developer — Andrei Chernoprudov

Author of the logo — Arstan Kalmagambetov

Sober redesign before and after

Context

Habit-breaking app. 3-person team. No PM.

I joined as the sole designer alongside two developers, owning everything from problem framing to design.

Nov 2024

Home screen redesign + themes + widgets + App Store screens in 15+ languages

May 2025

Community Journal

Nov 2025

Commitments — daily check-ins and streak goals

Problem

The streak counter was the only reason to open the app.

No engagement loop beyond the number. No reason to return on ordinary days — and no safety net when users relapsed.

Old Sober app screen

Home screen. Restructured hierarchy. Full personalization.

The counter stayed the hero. Below it: motivation, year overview, achievements, money saved, recovery progress — all in a single scrollable layout.

Users can choose from a full palette of colour themes, dark mode, or set their own photo as background.

Sober home screen redesign

Community Journal. 100% anonymous. Real stories. Likes and comments.

Users write short entries about their recovery. Others respond. Fully anonymous — which was the key decision for this audience.

Created a daily reason to open the app beyond the streak.

Sober community journal

Commitments. Daily check-ins. And a human response to relapse.

7, 30, 90-day streak goals with a daily check-in.

Relapse gets a human response, not a punishment — because shame is why people quit.

Sober commitments and streak goals

Impact

Retention grew every month for 8 months. No paid promotion.

My friend built this to help himself drink less. Few years later — 750K users, 150+ countries, team of three.

Sober impact benchmarks

Next steps

Working on a paywall redesign to improve premium conversion.

Will update this case with results after launch.

Sober next steps paywall redesign