Protein Calculator vs Rett
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protein Calculator
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Photograph a plate and GRAM counts the protein. Every food is named, weighed and logged — protein, calories, carbs, fat and fibre — in one photo. No barcodes, no typing. A PROTEIN TARGET BUILT ON YOUR BODY Weight, height, age and activity give you a daily target from published sports-nutrition ranges, and it moves as your weight moves. ONE NUMBER, ALL DAY Home shows what is left, the next meal that gets you there, and recipes sized to the gap. Widgets put the same number on your Home Screen. SEE THE PATTERN, NOT THE DAY A weekly Protein Score with last week's change, streaks and records, and a weight trend that smooths out daily scale noise. 489 FOODS, EVERY ONE PHOTOGRAPHED A food library shot for GRAM and counted to the gram, in 15 languages. APPLE HEALTH AND APPLE WATCH With your permission GRAM reads protein logged in other apps, your weight and your workouts from Apple Health, and saves the nutrition you log and your weigh-ins there. Your protein for the day is on Apple Watch and in widgets. FREE, FOREVER Unlimited logging and barcode scanning, the full food library, your daily target, streaks and quests, and full nutrition on every food. AI is part of the free plan too: 2 photo scans a day in your first week, then 3 a week; 2 Coach messages a day; one meal plan, one AI recipe and one kitchen read a week; 2 new library recipes a week and 2 restaurant chains. GRAM COACH (PREMIUM) Lifts those limits, within fair use: up to 300 AI scans a month, all 1,147 recipes and every restaurant chain, targets for every nutrient (the free plan tracks protein, calories and one more), weekly check-ins and your full Muscle-Keeping Score history. GRAM Coach is an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase and renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple Account › Subscriptions. Terms of Use: https://gramproteincalculator.com/terms Privacy Policy: https://gramproteincalculator.com/privacy GRAM is a nutrition tracking tool, not a medical device, and does not give medical advice.
Rett
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Rett Terapi, Rett sendromlu bireylerin bakımını kolaylaştırmak, aileleri desteklemek ve uzmanlarla koordinasyonu güçlendirmek amacıyla geliştirilmiş kapsamlı bir dijital destek platformudur. Bu uygulama sayesinde: • Günlük, haftalık ve aylık terapi planları oluşturabilir ve takip edebilirsiniz • Fizyoterapi, konuşma terapisi ve diğer destekleyici uygulamalar için rehber içeriklere ulaşabilirsiniz • Bireysel gelişim sürecini kayıt altına alabilir ve ilerlemeyi analiz edebilirsiniz • Uzman önerilerine ve güncel bilimsel bilgilere erişebilirsiniz • Rett sendromu topluluğu ile iletişim kurarak deneyim paylaşımı yapabilirsiniz Rett Terapi, bilimsel yaklaşımı ve kullanıcı dostu arayüzü ile hem aileler hem de uzmanlar için güçlü bir yardımcıdır.
Screenshots
Verdict
The clearest difference is in-app purchases: Rett at none against Protein Calculator's 2. Rett also leads on iOS requirement (15.1 vs 17.0). Protein Calculator's advantage is update cadence (every 2 days vs every 3 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Protein Calculator sells 2 in-app purchases, starting at $4.99 per month. Rett asks for nothing beyond the download.
Protein Calculator ships an update every 2 days, Rett every 3 months. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Protein Calculator | Rett |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 71 MB | 52 MB |
| Age rating | 12+ | 12+ |
| Developer | Serkan Kaplan | RETT SENDROMLU AILELER YARDIMLASMA VE DAYANISMA DERNEGI |
In-app purchases
Protein Calculator
- GRAM Premium Monthly$4.991 Month
- GRAM Premium Yearly$29.991 Year
Rett
No in-app purchases









