# Asympta Writing vs NanNanCat Notes

The clearest difference is in-app purchases: NanNanCat Notes at none against Asympta Writing's 1. NanNanCat Notes also leads on update cadence (daily vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Asympta Writing sells 1 one-off in-app purchase. NanNanCat Notes asks for nothing beyond the download.

Asympta Writing ships an update weekly, NanNanCat Notes daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | Asympta Writing | NanNanCat Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 24 MB | 8 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ka ho Lau](https://appshunter.io/developer/1221249533) | [Junda Chu](https://appshunter.io/developer/6809130583) |

## What reviewers say

### Asympta Writing

[App page](https://appshunter.io/ios/app/asympta-writing/id6800755232)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Asympta Pro Lifetime | $29.99 | one-time |


### NanNanCat Notes

[App page](https://appshunter.io/ios/app/nannancat-notes/id6809130581)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Asympta Writing free?

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

### Is NanNanCat Notes free?

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

### Do Asympta Writing or NanNanCat Notes have ads?

Neither Asympta Writing nor NanNanCat Notes shows ads.

### Which is updated more often, Asympta Writing or NanNanCat Notes?

Asympta Writing ships an update weekly, and NanNanCat Notes daily. Most recently, Asympta Writing was updated on October 24, 2026 and NanNanCat Notes on October 24, 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.*