# Ebbinghaus Planner vs 참을 인

The clearest difference is in-app purchases: 참을 인 at none against Ebbinghaus Planner's 4. 참을 인 also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Ebbinghaus Planner sells 4 in-app purchases, starting at $2.99 per month. 참을 인 asks for nothing beyond the download.

Ebbinghaus Planner ships an update every 10 days, 참을 인 every 3 weeks. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Ebbinghaus Planner | 참을 인 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (14 ratings)](https://appshunter.io/ios/app/ebbinghaus-planner-studyplan/id1578268926/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 95.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SeungGi Lee](https://appshunter.io/developer/1526667403) | [Soha Yun](https://appshunter.io/developer/1657584781) |

## What reviewers say

### Ebbinghaus Planner

[App page](https://appshunter.io/ios/app/ebbinghaus-planner-studyplan/id1578268926)

This app helps you memorize information efficiently by scheduling reviews based on the forgetting curve. It automates the process of recalling vocabulary, formulas, and other data at optimal times, reducing the need for manual scheduling and ensuring you never miss a review session.

**Highlights:** Automatic review scheduling, Subject and item management, Today's tasks view, Customizable notifications, Progress visualization, Simple and intuitive interface

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Monthly | $2.99 | per month |
| Yearly | $19.99 | per year |
| Yearly | $19.99 | per year |


### 참을 인

[App page](https://appshunter.io/ios/app/id6743880955)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ebbinghaus Planner free?

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

### Is 참을 인 free?

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

### Do Ebbinghaus Planner or 참을 인 have ads?

Ebbinghaus Planner shows ads; 참을 인 does not.

### Which is updated more often, Ebbinghaus Planner or 참을 인?

Ebbinghaus Planner ships an update every 10 days, and 참을 인 every 3 weeks. Most recently, Ebbinghaus Planner was updated on October 24, 2026 and 참을 인 on October 6, 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.*