# When · Days That Matter vs Apopo

The clearest difference is in-app purchases: Apopo at none against When · Days That Matter's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. When · Days That Matter sells 1 one-off in-app purchase. Apopo asks for nothing beyond the download.

When · Days That Matter ships an update every 2 weeks, Apopo fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | When · Days That Matter | Apopo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 6 MB | 75 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [杰龙 刘](https://appshunter.io/developer/1481214183) | [Wuhan Nightingales Tech Co., Ltd.](https://appshunter.io/developer/1893221962) |

## What reviewers say

### When · Days That Matter

[App page](https://appshunter.io/ios/app/when-days-that-matter/id1616365331)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| When Premium · Lifetime Access | $0.99 | one-time |


### Apopo

[App page](https://appshunter.io/ios/app/apopo/id6783599163)

**In-app purchases:** none


## Frequently asked questions

### Is When · Days That Matter free?

When · Days That Matter is free to download, with in-app purchases available.

### Is Apopo free?

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

### Do When · Days That Matter or Apopo have ads?

Neither When · Days That Matter nor Apopo shows ads.

### Which is updated more often, When · Days That Matter or Apopo?

When · Days That Matter ships an update every 2 weeks, and Apopo fortnightly. Most recently, When · Days That Matter was updated on October 30, 2026 and Apopo 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.*