# Prolog Retro Notes vs 47 Moments

The clearest difference is in-app purchases: 47 Moments at none against Prolog Retro Notes's 1. 47 Moments also leads on ads (none vs shown). Prolog Retro Notes's advantage is iOS requirement (14.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Prolog Retro Notes sells 1 in-app purchase, starting at $0.99 per month. 47 Moments asks for nothing beyond the download.

Prolog Retro Notes ships an update every 9 months, 47 Moments every 11 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Prolog Retro Notes | 47 Moments |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/prolog-retro-notes-8-bit-memo/id6468677672/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 months** | Every 11 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 30 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yasuhiro kojima](https://appshunter.io/developer/1244729145) | [makoto amijima](https://appshunter.io/developer/1493994946) |

## What reviewers say

### Prolog Retro Notes

[App page](https://appshunter.io/ios/app/prolog-retro-notes-8-bit-memo/id6468677672)

This app offers a unique note-taking experience with a retro 8-bit aesthetic. It allows users to record memos, track editing time, and even attach photos, all within a nostalgic, game-like interface. Level up your notes and enjoy a blast from the past.

**Highlights:** Retro 8-bit graphics, Memo recording, Playtime tracking, Level-based text progress, Photo attachment, Passcode lock (premium)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium plan | $0.99 | per month |


### 47 Moments

[App page](https://appshunter.io/ios/app/47-moments/id6739761053)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prolog Retro Notes free?

Prolog Retro Notes is free to download, with in-app purchases available.

### Is 47 Moments free?

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

### Do Prolog Retro Notes or 47 Moments have ads?

Prolog Retro Notes shows ads; 47 Moments does not.

### Which is updated more often, Prolog Retro Notes or 47 Moments?

Prolog Retro Notes ships an update every 9 months, and 47 Moments every 11 months. Most recently, Prolog Retro Notes was updated on October 22, 2026 and 47 Moments on October 25, 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.*