# LinkMemo vs Thatdidhappen

The clearest difference is price: LinkMemo at Free against Thatdidhappen's $2.99. Thatdidhappen's advantage is iOS requirement (13.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

LinkMemo is free to download; Thatdidhappen costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LinkMemo ships an update every 5 days, Thatdidhappen every 3 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | LinkMemo | Thatdidhappen |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 48 MB | 2 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yugo Ogura](https://appshunter.io/developer/1709291304) | [ADHOCON GmbH](https://appshunter.io/developer/1858708318) |

## What reviewers say

### LinkMemo

[App page](https://appshunter.io/ios/app/linkmemo-read-later-simple/id6661022541)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thatdidhappen

[App page](https://appshunter.io/ios/app/thatdidhappen-protocol/id6757167013)

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

**In-app purchases:** none


## Frequently asked questions

### Is LinkMemo free?

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

### Is Thatdidhappen free?

Thatdidhappen costs $2.99, with no in-app purchases.

### Do LinkMemo or Thatdidhappen have ads?

Neither LinkMemo nor Thatdidhappen shows ads.

### Which is updated more often, LinkMemo or Thatdidhappen?

LinkMemo ships an update every 5 days, and Thatdidhappen every 3 days. Most recently, LinkMemo was updated on October 8, 2026 and Thatdidhappen on October 10, 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.*