# aSTRING Chaos vs Chithi.me

The clearest difference is in-app purchases: Chithi.me at none against aSTRING Chaos's 2. Chithi.me also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. aSTRING Chaos sells 2 in-app purchases, starting at $0.99 per 7 days. Chithi.me asks for nothing beyond the download.

aSTRING Chaos ships an update weekly, Chithi.me every 10 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | aSTRING Chaos | Chithi.me |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (11 ratings)](https://appshunter.io/ios/app/chithime/id6795909532/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Free |
| Size | 43 MB | 9 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Bilegdemberel Sumiyabayar](https://appshunter.io/developer/1813051157) | [S. M. Sakeef Sani](https://appshunter.io/developer/6795909534) |

## What reviewers say

### aSTRING Chaos

[App page](https://appshunter.io/ios/app/astring-chaos/id6745579771)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Astring+ Weekly | $0.99 | per 7 days |
| Astring+ Monthly | $1.99 | per month |


### Chithi.me

[App page](https://appshunter.io/ios/app/chithime/id6795909532)

This app provides a digital mailbox for receiving personal letters from friends. Letters appear in a handwritten font on customizable paper designs and can be replayed keystroke by keystroke. Users can share letters to their stories or create scannable QR cards for their link.

**Highlights:** Digital mailbox for letters, Handwritten font and paper designs, Letter replay feature, Share letters to stories, QR card for link, Searchable mailbox, Content filtering and reporting

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

**In-app purchases:** none


## Frequently asked questions

### Is aSTRING Chaos free?

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

### Is Chithi.me free?

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

### Do aSTRING Chaos or Chithi.me have ads?

aSTRING Chaos shows ads; Chithi.me does not.

### Which is updated more often, aSTRING Chaos or Chithi.me?

aSTRING Chaos ships an update weekly, and Chithi.me every 10 days. Most recently, aSTRING Chaos was updated on October 25, 2026 and Chithi.me on October 25, 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.*