# 21DaysOfChange vs Bedtime Stories

The clearest difference is update cadence: Bedtime Stories at daily against 21DaysOfChange's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 21DaysOfChange sells 4 in-app purchases, starting at $4.99 per month and Bedtime Stories sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

21DaysOfChange ships an update every 9 months, Bedtime Stories daily. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 21DaysOfChange | Bedtime Stories |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Daily** |
| Size | 59 MB | 15 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hong Son Vu](https://appshunter.io/developer/1767993431) | [Aleksandr Timonchev](https://appshunter.io/developer/1436197346) |

## What reviewers say

### 21DaysOfChange

[App page](https://appshunter.io/ios/app/21daysofchange/id6677019535)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 21DaysOfChange Monthly Premium | $4.99 | per month |
| 21DaysOfChange Monthly Business | $12.99 | per month |
| 21DaysOfChange Yearly Premium | $34.99 | per year |
| 21DaysOfChange Yearly Business | $89.99 | per year |


### Bedtime Stories

[App page](https://appshunter.io/ios/app/bedtime-stories-sleeptower-ai/id6755903419)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SleepTower Pro Weekly | $3.99 | per 7 days |
| SleepTower Pro Monthly | $9.99 | per month |
| Unlimited Access for Yearly | $39.99 | per year |


## Frequently asked questions

### Is 21DaysOfChange free?

21DaysOfChange is free to download, with in-app purchases available.

### Is Bedtime Stories free?

Bedtime Stories is free to download, with in-app purchases available.

### Do 21DaysOfChange or Bedtime Stories have ads?

Neither 21DaysOfChange nor Bedtime Stories shows ads.

### Which is updated more often, 21DaysOfChange or Bedtime Stories?

21DaysOfChange ships an update every 9 months, and Bedtime Stories daily. Most recently, 21DaysOfChange was updated on October 21, 2026 and Bedtime Stories on October 28, 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.*