# Memory Ark vs Notifyman

The clearest difference is monetization model: Memory Ark at free with in-app purchases against Notifyman's subscription. Memory Ark also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Notifyman's advantage is update cadence (every 3 days vs every 2 months) and ratings volume (11 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Memory Ark sells 2 in-app purchases, starting at $0.99 per month and Notifyman sells 3 in-app purchases, starting at $2.99 per year. 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 4.9 for Notifyman. That said, the two scores are not equally well evidenced: Notifyman has 11 ratings behind it against 1, so its average is the more settled of the two.

Memory Ark ships an update every 2 months, Notifyman every 3 days. The most recent releases landed on September 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Memory Ark | Notifyman |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memory-ark/id6470735175/reviews)** | [4.9 (11 ratings)](https://appshunter.io/ios/app/notifyman/id6502558762/reviews) |
| Number of ratings | 1 | **11** |
| Positive reviews | — | 87.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 6 MB | 22 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [世超 徐](https://appshunter.io/developer/1688946625) | [斌斌 沈](https://appshunter.io/developer/1509733863) |

## 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 |


### Notifyman

[App page](https://appshunter.io/ios/app/notifyman/id6502558762)

This app helps you stay organized with persistent reminders that stay on your lock screen until completed. It automatically categorizes tasks and offers features like checklists and calendar sync to manage your life effectively.

**Highlights:** Persistent lock screen reminders, Smart task categorization, Checklists for task completion, Calendar sync, Statistics and insights, Notification widgets

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annully Subscription | $2.99 | per year |
| Lifetime | $3.99 | one-time |
| Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Memory Ark free?

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

### Is Notifyman free?

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

### Which has better reviews, Memory Ark or Notifyman?

Memory Ark is rated higher. Memory Ark averages 5.0 out of 5 from 1 ratings, while Notifyman averages 4.9 from 11 ratings.

### Do Memory Ark or Notifyman have ads?

Neither Memory Ark nor Notifyman shows ads.

### Which is updated more often, Memory Ark or Notifyman?

Memory Ark ships an update every 2 months, and Notifyman every 3 days. Most recently, Memory Ark was updated on September 19, 2026 and Notifyman on October 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.*