# chatlyn vs Zero

The clearest difference is in-app purchases: chatlyn at none against Zero's 3. Zero's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Zero sells 3 in-app purchases, starting at $4.99 per month. chatlyn asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | chatlyn | Zero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 89 MB | 46 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chatlyn](https://appshunter.io/developer/1667253032) | [Markus Hoefinger](https://appshunter.io/developer/1841457199) |

## What reviewers say

### chatlyn

[App page](https://appshunter.io/ios/app/chatlyn/id6738500547)

**In-app purchases:** none


### Zero

[App page](https://appshunter.io/ios/app/zero-friction-task-manager/id6752873580)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $44.99 | per year |
| Pro Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is chatlyn free?

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

### Is Zero free?

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

### Do chatlyn or Zero have ads?

Neither chatlyn nor Zero shows ads.

### Which is updated more often, chatlyn or Zero?

chatlyn ships an update monthly, and Zero monthly. Most recently, chatlyn was updated on September 20, 2026 and Zero on September 18, 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.*