Zerot vs Calyra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zerot
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Zerot is a hybrid fitness platform designed for both individual users and professional trainers. It is completely free, with no account required, no ads, and no in-app purchases. Your data stays on your device and is never collected for analytics, tracking, or any other purpose. Track body measurements, training history, progress, workouts, nutrition, and posture in one place. Build flexible workouts, log them quickly or in detail, analyze training patterns, and use Apple Vision-powered posture analysis live or from photos. Optional Trainer Mode extends the same tools to your clients. Manage unlimited clients and groups, track check-ins, assign exercises, manage PAR-Q forms, customize relevant measurements and tests, and follow client progress. You can also email individuals or groups, view trainer activity insights, and create progress reports or export data as PDF, HTML, CSV, or JSON. Whether you train on your own or work with clients, you get the full feature set without subscriptions, paywalls, or data collection. Privacy Policy: https://zerot.app/privacy/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Calyra
Easily track your daily calorie and nutritional intake by photographing meals or scanning barcodes. Get detailed insights into your weight, BMI, and micronutrients to achieve your health goals with an intuitive interface.
- Photo meal analysis
- Barcode scanning for nutrition
- Weight and BMI tracking
- Micronutrient overview
- Daily statistics analysis
- Intuitive user interface
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Discover Calyra, the ultimate app for tracking your calories and transforming your health with ease and precision. Whether you're looking to lose weight, maintain a healthy lifestyle, or simply monitor your nutritional intake, our calorie app is your ideal daily partner. With our app, scanning and tracking your calories has never been easier. Simply take a photo of your meals to get an instant analysis of their nutritional value. You can also scan product barcodes for increased accuracy, ensuring you don't miss a single item. Our app offers a complete view of your day with detailed statistics on your weight, BMI, and much more. Track your progress day by day and gain valuable insights to achieve your health goals. The intuitive and user-friendly interface makes tracking your physical activity and nutrition a breeze. The app is designed to provide you with all the micronutrients directly to your phone, allowing you to keep track of every detail of your diet. Analyze your daily stats and adjust your habits for a healthier life. Don't let calories get away from you anymore. With our app, you have everything you need to take control of your diet and health. Download now and begin your journey to a healthier, happier life. Key Features: Scan and track your calories with one click. Photograph your meals for instant analysis. Scan barcodes for greater accuracy. Track your weight, BMI, and other vital stats. Get an overview of your micronutrients. Analyze your daily stats. Intuitive and user-friendly interface. Don't miss this opportunity to transform your health. Download our calorie app today and take control of your diet like never before. Your journey to a healthier life starts here. Terms of Service (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ General Terms of Service: https://laser-carol-7ae.notion.site/Conditions-G-n-rales-D-Utilisation-223d5fa4ad3180c2856fd359537213ac?source=copy_link
Screenshots
Verdict
The clearest difference is in-app purchases: Zerot at none against Calyra's 3. Zerot also leads on ads (none vs shown). Calyra's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and update cadence 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. Calyra sells 3 in-app purchases, starting at $9.99 per month. Zerot asks for nothing beyond the download.
Zerot ships an update weekly, Calyra every 10 days. The most recent releases landed on October 2, 2026 and October 28, 2026 respectively.
| Parameter | Zerot | Calyra |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (147 ratings) — better |
| Positive reviews | — | 58.8% of reviews |
| Number of ratings | — | 147 — better |
| Update frequency | Weekly — better | Every 10 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 52 MB | 77 MB |
| Age rating | 12+ | 4+ |
| Developer | Gabor Lorant Kiss | Nutria SAS |
In-app purchases
Zerot
No in-app purchases
Calyra
- 1 Month Subscription7 Days trial$9.991 Month
- 1 Year Subscription - Offer$29.991 Year
- 1 year subscription7 Days trial$49.991 Year









