Comparison

PeaFast vs SOL

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

PeaFast

Features
Read full description

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/

About

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 โ€ข Beautiful minimal timer with progress ring โ€ข Real-time body phase updates with scientific sources โ€ข Full body timeline โ€” see all 8 phases and your progress โ€ข Tap any phase for in-depth science and PubMed sources โ€ข Smart notifications at each milestone โ€ข Stats dashboard โ€” track your fasting journey โ€ข Background timer โ€” keeps running when you close the app โ€ข Light & dark mode with handcrafted watercolor textures โ€ข Home screen widget โ€ข Community pulse โ€” you're not fasting alone โ€ข 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

PeaFast4 screens
SOL4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. PeaFast sells 2 in-app purchases, starting at $1.99 per month. SOL asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

Scorecard1 real difference ยท 5 level
PeaFast versus SOL: the parameters behind the verdict, then further details
ParameterPeaFastSOL
PriceFreeFree
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.1 โ€” better16
Further details โ€” not scored
Size45 MB6 MB
Age rating4+4+
DeveloperCemal TakranDanny Linsner

In-app purchases

2 purchases

PeaFast

Subscriptions2
  • PeaFast Premium Monthly$1.991 Month
  • PeaFast Premium Yearly$7.991 Year
None

SOL

No in-app purchases

Questions

Is PeaFast free?
PeaFast is free to download, with in-app purchases available.
Is SOL free?
SOL is free to download, with no in-app purchases.
Do PeaFast or SOL have ads?
Neither PeaFast nor SOL shows ads.
Which is updated more often, PeaFast or SOL?
PeaFast ships an update fortnightly, and SOL fortnightly. Most recently, PeaFast was updated on September 9, 2026 and SOL on September 22, 2026.

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