# Memory Ark vs NowLog

The clearest difference is in-app purchases: NowLog at none against Memory Ark's 2. NowLog also leads on update cadence (every 2 weeks vs every 2 months). Memory Ark's advantage is iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Memory Ark sells 2 in-app purchases, starting at $0.99 per month. NowLog asks for nothing beyond the download.

Memory Ark ships an update every 2 months, NowLog every 2 weeks. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Memory Ark | NowLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memory-ark/id6470735175/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 5 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [世超 徐](https://appshunter.io/developer/1688946625) | [Yue Wu](https://appshunter.io/developer/1801622973) |

## 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 |


### NowLog

[App page](https://appshunter.io/ios/app/nowlog/id6755314735)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Memory Ark free?

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

### Is NowLog free?

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

### Do Memory Ark or NowLog have ads?

Neither Memory Ark nor NowLog shows ads.

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

Memory Ark ships an update every 2 months, and NowLog every 2 weeks. Most recently, Memory Ark was updated on September 19, 2026 and NowLog on September 20, 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.*