# Forgetting Curve Reminder vs 記憶KEEPER

The clearest difference is price: 記憶KEEPER at Free against Forgetting Curve Reminder's $1.99. 記憶KEEPER also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

記憶KEEPER is free to download; Forgetting Curve Reminder costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Forgetting Curve Reminder ships an update every 3 weeks, 記憶KEEPER every 3 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Forgetting Curve Reminder | 記憶KEEPER |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | — |
| Size | 3 MB | 4 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Manabi Mate LLC](https://appshunter.io/developer/1817627045) | [nao watanabe](https://appshunter.io/developer/1896686911) |

## What reviewers say

### Forgetting Curve Reminder

[App page](https://appshunter.io/ios/app/forgetting-curve-reminder/id6760619904)

This app helps you remember what you learn by scheduling reviews based on the Ebbinghaus forgetting curve. Create study items, receive timely reminders, and track your progress with ease. All your data is stored locally for enhanced privacy.

**Highlights:** Scientific review scheduling, Local reminders, Progress tracking, One-tap completion, Review history, Customizable intervals

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

**In-app purchases:** none


### 記憶KEEPER

[App page](https://appshunter.io/ios/app/keeper/id6769772312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Forgetting Curve Reminder free?

Forgetting Curve Reminder costs $1.99, with no in-app purchases.

### Is 記憶KEEPER free?

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

### Do Forgetting Curve Reminder or 記憶KEEPER have ads?

Neither Forgetting Curve Reminder nor 記憶KEEPER shows ads.

### Which is updated more often, Forgetting Curve Reminder or 記憶KEEPER?

Forgetting Curve Reminder ships an update every 3 weeks, and 記憶KEEPER every 3 days. Most recently, Forgetting Curve Reminder was updated on October 12, 2026 and 記憶KEEPER on October 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.*