# Memory Ark vs A Plan To Do

The clearest difference is update cadence: A Plan To Do at weekly against Memory Ark's every 2 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Memory Ark sells 2 in-app purchases, starting at $0.99 per month and A Plan To Do sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Memory Ark against 5.0 for A Plan To Do. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Memory Ark ships an update every 2 months, A Plan To Do weekly. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Memory Ark | A Plan To Do |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/memory-ark/id6470735175/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/a-plan-to-do/id6483804953/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 31 MB |
| Requires iOS | **15.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [世超 徐](https://appshunter.io/developer/1688946625) | [Xiaochang Dazuo (Beijing) Technology Co., Ltd.](https://appshunter.io/developer/1740260665) |

## What reviewers say

### 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 |


### A Plan To Do

[App page](https://appshunter.io/ios/app/a-plan-to-do/id6483804953)

Organize tasks with multi-level Kanban boards and checklists. Improve learning efficiency using Ebbinghaus study plans and develop daily habits with quick clock-in features. A unified calendar view simplifies tracking all your tasks.

**Highlights:** Kanban and checklist task management, Ebbinghaus study plan creation, Daily habit development, Calendar view for schedules, Template library for scenarios, Multi-level task organization

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $2.99 | per month |
| Annual Membership | $12.99 | per year |
| Life Membership | $19.99 | one-time |


## Frequently asked questions

### Is Memory Ark free?

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

### Is A Plan To Do free?

A Plan To Do is free to download, with in-app purchases available.

### Which has better reviews, Memory Ark or A Plan To Do?

Memory Ark and A Plan To Do are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Memory Ark or A Plan To Do have ads?

Neither Memory Ark nor A Plan To Do shows ads.

### Which is updated more often, Memory Ark or A Plan To Do?

Memory Ark ships an update every 2 months, and A Plan To Do weekly. Most recently, Memory Ark was updated on September 19, 2026 and A Plan To Do on September 12, 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.*