Thryvvs vs FatFlow
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Thryvvs
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Feel in sync, not overwhelmed. Thryvvs gives women cycle-based workouts, symptom tracking, nutrition guidance, and supportive coaches for every stage. Build strength, energy, and confidence with a plan that moves with your hormones. A subscription is required to access all app content. Subscription auto-renews unless canceled at least 24 hours before the end of the current period. Manage subscriptions in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
FatFlow
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Most people know what they ate. Far fewer understand what may be happening in the hours afterward. After eating, insulin rises to help the body use and store incoming energy, while reducing the release of stored fat. As time passes without more food, insulin generally falls and the body gradually shifts toward using more stored energy. FatFlow makes this invisible process easier to understand. Log meals, drinks and activity in seconds. FatFlow then provides an educational estimate of whether your body is likely processing recent food, shifting fuel sources, or spending more time in a fat-burning state. Use FatFlow to: โข See your current estimated metabolic state โข Understand how long it may take to return to fat burning โข Review daily and weekly patterns โข Log meals, drinks and activity quickly โข Set recurring entries and reminders โข Create optional backups of your history FatFlow is designed for awareness, not judgment. It does not count calories, prescribe a diet or tell you when to eat. It helps you see how timing may shape your day so you can make more informed choices. Privacy first: โข Your meal, drink and activity history stays on your device โข No account is required โข No ads โข No subscriptions โข 100% free Important: FatFlow provides educational estimates, not direct measurements. Actual responses vary based on meal size and composition, activity, metabolism, sleep, medications and health conditions. FatFlow is not a medical device and does not provide medical advice, diagnosis or treatment.
Screenshots
Verdict
The clearest difference is in-app purchases: FatFlow at none against Thryvvs's 2. FatFlow also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Thryvvs sells 2 in-app purchases, starting at $11.99 per month. FatFlow asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 11 days. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.
| Parameter | Thryvvs | FatFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Every 11 days |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 15.1 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 68 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Thryvvs IT Consulting FZ-LLC | Ossama Eldeeb |
In-app purchases
Thryvvs
- Thryvvs Plus Monthly14 Days trial$11.991 Month
- Thryvvs Plus Yearly14 Days trial$89.991 Year
FatFlow
No in-app purchases









