PeaFast vs SOL
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PeaFast
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PeaFast helps you follow intermittent fasting with a rhythm-first approach. Designed for better daily timing: - Track your fasting timer in real time - Use popular plans like 16:8, 18:6, and 20:4 - Set your fasting start time to fit your day - See circadian rhythm insights based on your schedule - Get smart reminders for fasting start and end - Review clear progress analytics PeaFast focuses on time-based fasting and sustainable consistency. If you want a practical fasting app with strong circadian timing support, PeaFast keeps it simple and actionable. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SOL
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SOL (์) โ Korean for Pine Tree. Like the pine that endures through every season, SOL stands with you through every fast. WHAT MAKES SOL DIFFERENT Most fasting apps just show a timer. SOL shows you what's actually happening inside your body โ in real time. As you fast, SOL guides you through each biological phase: Fed State โ Insulin Dropping โ Fat Burning โ Ketosis โ Autophagy โ Deep Autophagy โ Growth Hormone Surge โ Immune Reset FEATURES โข Beautiful minimal timer with progress ring โข Real-time body phase updates with scientific sources โข Full body timeline โ see all 8 phases and your progress โข Tap any phase for in-depth science and PubMed sources โข Smart notifications at each milestone โข Stats dashboard โ track your fasting journey โข Background timer โ keeps running when you close the app โข Light & dark mode with handcrafted watercolor textures โข Home screen widget โข Community pulse โ you're not fasting alone โข Share your results with a beautiful card FASTING GOALS Choose from 16h, 18h, 20h, 24h, 36h, 48h, 72h, or go Open with no time limit. Hit your goal? Extend to the next level. DESIGNED WITH INTENTION SOL is inspired by the simplicity of nature. No clutter, no ads, no unnecessary features. Just you, your fast, and the knowledge of what your body is doing. All body phase information is based on peer-reviewed scientific research with direct links to PubMed sources. Begin your fast. Know your body. Grow like the pine.
Screenshots
Verdict
The clearest difference is in-app purchases: SOL at none against PeaFast's 2. On price, update cadence, ads and device support 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. PeaFast sells 2 in-app purchases, starting at $1.99 per month. SOL asks for nothing beyond the download.
Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.
| Parameter | PeaFast | SOL |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 โ better | 16 |
| Further details โ not scored | ||
| Size | 45 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Cemal Takran | Danny Linsner |
In-app purchases
PeaFast
- PeaFast Premium Monthly$1.991 Month
- PeaFast Premium Yearly$7.991 Year
SOL
No in-app purchases








