# Ebbinghaus Planner vs Memory Ark

The clearest difference is rating: Memory Ark at 5.0 against Ebbinghaus Planner's 4.4. Memory Ark also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). Ebbinghaus Planner's advantage is update cadence (every 10 days vs every 2 months) and ratings volume (14 vs 1). On price, in-app purchases, monetization model 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 and Memory Ark sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Memory Ark holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Ebbinghaus Planner has 14 ratings behind it against 1, so its average is the more settled of the two.

Ebbinghaus Planner ships an update every 10 days, Memory Ark every 2 months. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Ebbinghaus Planner | Memory Ark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (14 ratings)](https://appshunter.io/ios/app/ebbinghaus-planner-studyplan/id1578268926/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memory-ark/id6470735175/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 95.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 39 MB | 6 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) | [世超 徐](https://appshunter.io/developer/1688946625) |

## 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 |


### Memory Ark

[App page](https://appshunter.io/ios/app/memory-ark/id6470735175)

This app helps users combat forgetting by using the Ebbinghaus Forgetting Curve to create personalized review schedules. It offers features like task management, progress tracking, and smart rescheduling to make learning more efficient and effective.

**Highlights:** Ebbinghaus Forgetting Curve integration, Daily and calendar task management, Task categorization with tags, Detailed review session data, Customizable memory curves, Smart task rescheduling, Retroactive check-in for missed tasks

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Annual Membership | $2.99 | per year |


## Frequently asked questions

### Is Ebbinghaus Planner free?

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

### Is Memory Ark free?

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

### Which has better reviews, Ebbinghaus Planner or Memory Ark?

Memory Ark is rated higher. Ebbinghaus Planner averages 4.4 out of 5 from 14 ratings, while Memory Ark averages 5.0 from 1 ratings.

### Do Ebbinghaus Planner or Memory Ark have ads?

Ebbinghaus Planner shows ads; Memory Ark does not.

### Which is updated more often, Ebbinghaus Planner or Memory Ark?

Ebbinghaus Planner ships an update every 10 days, and Memory Ark every 2 months. Most recently, Ebbinghaus Planner was updated on September 21, 2026 and Memory Ark on September 19, 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.*