# Missing Num vs Flashnote

The clearest difference is update cadence: Flashnote at every 2 weeks against Missing Num's every 11 months. Missing Num's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Missing Num ships an update every 11 months, Flashnote every 2 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | Missing Num | Flashnote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Size | 8 MB | 18 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [ATSUKI SUZUKI](https://appshunter.io/developer/1812681778) |

## What reviewers say

### Missing Num

[App page](https://appshunter.io/ios/app/missing-num/id868026877)

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

**In-app purchases:** none


### Flashnote

[App page](https://appshunter.io/ios/app/flashnote-flashcards-app/id6745518841)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Missing Num free?

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

### Is Flashnote free?

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

### Do Missing Num or Flashnote have ads?

Both Missing Num and Flashnote show ads.

### Which is updated more often, Missing Num or Flashnote?

Missing Num ships an update every 11 months, and Flashnote every 2 weeks. Most recently, Missing Num was updated on October 3, 2026 and Flashnote on October 3, 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.*