- Client
- SlimAI
- Industry
- Health & fitness
- My role
- Lead mobile developer: app architecture, AI features, subscriptions and releases
- Status
- Live on the App Store and Google Play since October 2025
- Numbers
- 10K+ downloads (Google Play) · 4.4★ (App Store) · 7 languages · version 1.3.17
The problem
Calorie tracking works, but people quit because logging is tedious: searching databases, weighing food, typing every ingredient. SlimAI needed logging to take seconds. It also needed a business model where the cost of every AI request is covered.
What I built
- Photo logging. Snap a meal, and the app returns calories, macros and ingredients. The user can edit anything before saving.
- Voice and typed logging. Say or type what you ate in plain words.
- A body-fat estimate from a photo, and an AI coach with a weekly analysis of the user’s progress.
- Adaptive daily goals that adjust as the user progresses.
- Subscriptions with a free tier: three photo scans a day and unlimited typed entries.
- Seven languages: English, French, German, Italian, Spanish, Dutch and Arabic.
How I approached it
Trust through editing.
AI will misread some meals. Every result is editable, so a miss costs the user two taps, not their trust.
AI cost tied to revenue.
Photo scans are the expensive feature, so free users get three a day. The count is enforced on the server, not the phone, so it can’t be reset by reinstalling. Heavy use leads to a subscription instead of a bigger bill.
Fast, frequent releases.
Separate staging and production builds let fixes and features go out regularly without risking live users.
From the App Store listing
Launch & after
Live on both stores since October 2025, with 10K+ downloads on Google Play and version 1.3.17 as of September 2026. Recent releases tightened how free usage is counted and improved the typed and voice logging flows.
AI nutrition app live on the App Store.
Version 1.3.17, with server-counted free scans.
