# Appispace vs 21DaysOfChange

The clearest difference is in-app purchases: Appispace at none against 21DaysOfChange's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 21DaysOfChange sells 4 in-app purchases, starting at $5.99 per month. Appispace asks for nothing beyond the download.

Appispace ships an update every 7 months, 21DaysOfChange every 9 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Appispace | 21DaysOfChange |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 9 months |
| Size | 201 MB | 59 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [APPISPACE LP](https://appshunter.io/developer/1626024737) | [Hong Son Vu](https://appshunter.io/developer/1767993431) |

## What reviewers say

### Appispace

[App page](https://appshunter.io/ios/app/appispace/id6444376518)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 | $5.99 | per month |
| 21DaysOfChange Monthly Business | $17.99 | per month |
| 21DaysOfChange Yearly Premium | $71.99 | per year |
| 21DaysOfChange Yearly Business | $214.99 | per year |


## Frequently asked questions

### Is Appispace free?

Appispace is free to download, with no in-app purchases.

### Is 21DaysOfChange free?

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

### Do Appispace or 21DaysOfChange have ads?

Neither Appispace nor 21DaysOfChange shows ads.

### Which is updated more often, Appispace or 21DaysOfChange?

Appispace ships an update every 7 months, and 21DaysOfChange every 9 months. Most recently, Appispace was updated on October 7, 2026 and 21DaysOfChange on October 5, 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.*