Comparison

21DaysOfChange vs Formy

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

Head to head
About

21DaysOfChange

Features
Read full description

With our clear guidance and a bit of fun, we'll help you transform your habits into something you can be proud of. Imagine growing a tree - starting small, nurturing it daily, and watching it flourish. In just 21 days, you'll cultivate a new habit with tips and strategies that will last a lifetime. Join us on this transformative journey and take control of your lifestyle, one habit at a time. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.21daysofchange.app/privacypolicy

About

Formy

Features
Read full description

Build better habits, simply. Formy is a minimalist habit tracker designed for those who value clarity and focus. No complex charts, no clutterβ€”just a seamless path to building a better version of yourself. Why choose Formy? Pure Simplicity: Log your habits in a single tap. Beautiful Design: A minimalist interface that makes daily tracking a joy. Total Privacy: Your data stays on your device. No accounts, no servers, and no personal data tracking. Coming Soon for Premium Users: We are committed to making your habit-building journey even better. Future updates for Premium users will include: Smart Reminders: Never miss a habit with customizable alerts. Detailed Insights: Deep dive into your progress with enhanced activity logs. Continuous Updates: New features added regularly to support your growth. How it works: Add a goal you want to achieve. Tap to mark it complete. Keep your streak alive. Start small. Start now. Form your future with Formy.

Screenshots

21DaysOfChange4 screens
Formy3 screens

Verdict

The call

The clearest difference is ads: 21DaysOfChange at none against Formy's shown. 21DaysOfChange also leads on iOS requirement (16.4 vs 26.0). Formy's advantage is update cadence (weekly vs every 9 months). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. 21DaysOfChange sells 4 in-app purchases, starting at $5.99 per month and Formy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

21DaysOfChange ships an update every 9 months, Formy weekly. The most recent releases landed on September 18, 2026 and September 6, 2026 respectively.

Scorecard3 real differences Β· 3 level
21DaysOfChange versus Formy: the parameters behind the verdict, then further details
Parameter21DaysOfChangeFormy
PriceFreeFree
Update frequencyEvery 9 monthsWeekly β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS16.4 β€” better26.0
Further details β€” not scored
Size59 MB12 MB
Age rating4+4+
DeveloperHong Son VuKoki Teraoka

In-app purchases

4 purchases

21DaysOfChange

Subscriptions4
  • 21DaysOfChange Monthly Premium$5.991 Month
  • 21DaysOfChange Monthly Business$17.991 Month
  • 21DaysOfChange Yearly Premium$71.991 Year
Show 1 more
  • 21DaysOfChange Yearly Business$214.991 Year
1 purchases

Formy

One-time1
  • Formy Pro$1.99

Questions

Is 21DaysOfChange free?
21DaysOfChange is free to download, with in-app purchases available.
Is Formy free?
Formy is free to download, with in-app purchases available.
Do 21DaysOfChange or Formy have ads?
Formy shows ads; 21DaysOfChange does not.
Which is updated more often, 21DaysOfChange or Formy?
21DaysOfChange ships an update every 9 months, and Formy weekly. Most recently, 21DaysOfChange was updated on September 18, 2026 and Formy on September 6, 2026.

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