Comparison

Change Chain vs Worrycast

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

Head to head
About

Change Chain

Features
Read full description

Change Chain is a tool, scientifically based on Unified Protocol and Cognitive Behavior Therapy, which may be used to improve your mood and general wellbeing. By planning and doing certain types of daily activities that specifically target and improves low mood, it gives you a good chance to conquer blues and depression. The activities you undertake will one by one create a chain to pull you up to increased wellbeing. The goal is to make the chain long, strong and unimpaired!

About

Worrycast

Features
Read full description

Most of your worries never come true. Worrycast helps you prove it. Every worry is a forecast: "the meeting will go badly", "they're mad at me", "I won't cope tomorrow." Worrycast takes your forecast seriously - and then checks it against reality. MAKE A PREDICTION When anxiety strikes, write down exactly what you think will happen. Be specific - "My presentation will go terribly" or "Nobody will talk to me at the party." CHECK BACK LATER Pick when you'll know: tonight, tomorrow, next week. Worrycast reminds you at exactly that moment. RECORD WHAT ACTUALLY HAPPENED Did your fear come true? Usually it didn't. Across all predictions tracked in Worrycast so far, 73% never happened. WATCH YOUR OWN PATTERN Your personal accuracy stats build undeniable proof that your mind overestimates danger. That evidence is what quiets the next worry, calms overthinking, and interrupts rumination before it spirals. Worrycast is built on behavioral experiments from Cognitive Behavioral Therapy (CBT) - one of the most effective techniques for anxiety, worry and intrusive thoughts. Instead of fighting your thoughts, you test them. The evidence does the rest. No account needed. Your data stays private. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Change Chain4 screens
Worrycast4 screens

Verdict

The call

The clearest difference is in-app purchases: Change Chain at none against Worrycast's 3. Change Chain also leads on update cadence (every 3 days vs every 6 weeks) and iOS requirement (13.0 vs 18.2). On price, 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. Worrycast sells 3 in-app purchases, starting at $7.99 per month. Change Chain asks for nothing beyond the download.

UpkeepUpdate frequency

Change Chain ships an update every 3 days, Worrycast every 6 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

Scorecard3 real differences ยท 3 level
Change Chain versus Worrycast: the parameters behind the verdict, then further details
ParameterChange ChainWorrycast
PriceFreeFree
Update frequencyEvery 3 days โ€” betterEvery 6 weeks
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better18.2
Further details โ€” not scored
Size21 MB18 MB
Age rating4+4+
DeveloperLivanda - Internetkliniken ABRoderik Lagerweij

In-app purchases

None

Change Chain

No in-app purchases

3 purchases

Worrycast

Subscriptions2
  • Monthly Premium$7.991 Month
  • Yearly$19.991 Year
One-time1
  • One Time Premium Discount$9.99

Questions

Is Change Chain free?
Change Chain is free to download, with no in-app purchases.
Is Worrycast free?
Worrycast is free to download, with in-app purchases available.
Do Change Chain or Worrycast have ads?
Neither Change Chain nor Worrycast shows ads.
Which is updated more often, Change Chain or Worrycast?
Change Chain ships an update every 3 days, and Worrycast every 6 weeks. Most recently, Change Chain was updated on October 3, 2026 and Worrycast on October 14, 2026.

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