# Memory Memos vs Prilog

The clearest difference is device support: Prilog at 4 against Memory Memos's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Memory Memos sells 1 one-off in-app purchase and Prilog sells 4 in-app purchases, starting at $0.59 per month. Whichever you choose, the download price is not the number that matters.

Memory Memos ships an update every 10 days, Prilog every 5 days. The most recent releases landed on September 14, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Memory Memos | Prilog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 236 MB | 222 MB |
| Requires iOS | 13.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Sangseon Kim](https://appshunter.io/developer/1619035752) |

## What reviewers say

### Memory Memos

[App page](https://appshunter.io/ios/app/memory-memos/id1592968579)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Remove | $0.99 | one-time |


### Prilog

[App page](https://appshunter.io/ios/app/prilog-private-journal-diary/id6449960507)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly (iOS) | $0.59 | per month |
| Monthly (macOS) | $1.19 | per month |
| Lifetime (iOS) | $8.00 | one-time |
| Lifetime (macOS) | $12.00 | one-time |


## Frequently asked questions

### Is Memory Memos free?

Memory Memos is free to download, with in-app purchases available.

### Is Prilog free?

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

### Do Memory Memos or Prilog have ads?

Neither Memory Memos nor Prilog shows ads.

### Which is updated more often, Memory Memos or Prilog?

Memory Memos ships an update every 10 days, and Prilog every 5 days. Most recently, Memory Memos was updated on September 14, 2026 and Prilog on September 7, 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.*