# Prolog Retro Notes vs カードツクール

The clearest difference is in-app purchases: カードツクール at none against Prolog Retro Notes's 1. カードツクール also leads on ads (none vs shown) and update cadence (weekly vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Prolog Retro Notes sells 1 in-app purchase, starting at $0.99 per month. カードツクール asks for nothing beyond the download.

Prolog Retro Notes ships an update every 9 months, カードツクール weekly. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Prolog Retro Notes | カードツクール |
| --- | --- | --- |
| 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 | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 3 MB |
| Requires iOS | **14.0** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [yasuhiro kojima](https://appshunter.io/developer/1244729145) | [Yatuki Misora](https://appshunter.io/developer/1638664984) |

## 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 |


### カードツクール

[App page](https://appshunter.io/ios/app/id6476618586)

**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 カードツクール free?

カードツクール is free to download, with no in-app purchases.

### Do Prolog Retro Notes or カードツクール have ads?

Prolog Retro Notes shows ads; カードツクール does not.

### Which is updated more often, Prolog Retro Notes or カードツクール?

Prolog Retro Notes ships an update every 9 months, and カードツクール weekly. Most recently, Prolog Retro Notes was updated on October 30, 2026 and カードツクール on November 8, 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.*