# chatlyn vs Contia Authenticator

The clearest difference is device support: Contia Authenticator at 3 against chatlyn's 1. Contia Authenticator also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

chatlyn ships an update monthly, Contia Authenticator fortnightly. The most recent releases landed on August 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | chatlyn | Contia Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 89 MB | 33 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chatlyn](https://appshunter.io/developer/1667253032) | [Contia Development](https://appshunter.io/developer/523414256) |

## What reviewers say

### chatlyn

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

**In-app purchases:** none


### Contia Authenticator

[App page](https://appshunter.io/ios/app/contia-authenticator/id6760599060)

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

**In-app purchases:** none


## Frequently asked questions

### Is chatlyn free?

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

### Is Contia Authenticator free?

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

### Do chatlyn or Contia Authenticator have ads?

Neither chatlyn nor Contia Authenticator shows ads.

### Which is updated more often, chatlyn or Contia Authenticator?

chatlyn ships an update monthly, and Contia Authenticator fortnightly. Most recently, chatlyn was updated on August 14, 2026 and Contia Authenticator 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.*