# Change Chain vs Worrycast

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.

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.

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.

## The numbers

| Metric | Change Chain | Worrycast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 weeks |
| Size | 21 MB | 18 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Livanda - Internetkliniken AB](https://appshunter.io/developer/1607972909) | [Roderik Lagerweij](https://appshunter.io/developer/1697707544) |

## What reviewers say

### Change Chain

[App page](https://appshunter.io/ios/app/change-chain/id1644319974)

**Features:** macOS Compatibility

**In-app purchases:** none


### Worrycast

[App page](https://appshunter.io/ios/app/worrycast-stop-overthinking/id6758053099)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Yearly | $19.99 | per year |
| One Time Premium Discount | $9.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*