OneCal Calorie Tracker vs Calcau
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OneCal Calorie Tracker
This app offers a straightforward approach to tracking daily calorie intake. It focuses on simplicity, allowing users to log their food and monitor their targets without complex calculations or features. The goal is to make calorie management quick and easy, freeing up users' time.
- Science-based calorie tracking
- No macro calculations
- No barcode scanning
- Fast and simple logging
- View calorie targets
- Focus on calories in, calories out
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OneCal is a science-based calorie tracker for people who don’t want to think about weight loss—they just want to do it. No macros to calculate, no barcode scanning, no friend feeds, no badges. Enter the calories that you eat, see your target, and move on. It’s calories in, calories out—fast to log, simple to follow—so you can spend less time in an app and more time living your life. This app provides general information only and is not medical advice. Consult a qualified healthcare professional before making changes to your diet or exercise. OneCal does not diagnose, treat, cure, or prevent any condition and disclaims liability for decisions made based on app data.
Calcau
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Calorie tracking made simple. Snap a photo of your food and get an instant AI estimate. No barcode required — works with real meals, not just packaged food. Track your calories and macros without the complexity of a full fitness platform. FEATURES - Photo → AI → calories in seconds - Daily targets based on your goal - Protein intake tracking - Weight logging with trends - Stats dashboard Calcau+ subscription includes carbs, fat, and fiber tracking, advanced statistics, and daily Stoic quotes to keep you focused. Simple tools. Real progress. --- Terms of Service - http://calcau.mykytamine.com/terms Privacy Policy - http://calcau.mykytamine.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: OneCal Calorie Tracker at none against Calcau's 3. Calcau's advantage is ads (none vs shown) and update cadence (every 2 days vs every 9 days). On price, device support and iOS requirement 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. Calcau sells 3 in-app purchases, starting at $2.99 per 7 days. OneCal Calorie Tracker asks for nothing beyond the download.
OneCal Calorie Tracker ships an update every 9 days, Calcau every 2 days. Both last shipped on October 30, 2026.
| Parameter | OneCal Calorie Tracker | Calcau |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.6 | 18.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 27 MB |
| Age rating | 4+ | 17+ |
| Developer | Marcus Spitzmiller | Mykyta Pustovoit |
In-app purchases
OneCal Calorie Tracker
No in-app purchases
Calcau
- Calcau Plus - Weekly$2.997 Days
- Calcau Plus - Monthly$3.991 Month
- Calcau Plus - Yearly7 Days trial$19.991 Year
