# IDmelon Authenticator vs UniChat AI

The clearest difference is update cadence: UniChat AI at every 5 days against IDmelon Authenticator's every 2 weeks. UniChat AI also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. IDmelon Authenticator sells 2 in-app purchases, starting at $5.99 per year and UniChat AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

IDmelon Authenticator ships an update every 2 weeks, UniChat AI every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | IDmelon Authenticator | UniChat AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/idmelon-authenticator/id1511376376/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 165 MB | 46 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IDmelon Technologies Inc](https://appshunter.io/developer/1165575817) | [Top Health Products LLC](https://appshunter.io/developer/6786035144) |

## What reviewers say

### IDmelon Authenticator

[App page](https://appshunter.io/ios/app/idmelon-authenticator/id1511376376)

Transform your smartphone into a FIDO2 security key for passwordless logins on all your devices. Generate, store, and manage passkeys for secure and easy access to online accounts and applications. Compatible with major platforms like GitHub, Facebook, and Microsoft.

**Highlights:** Smartphone as FIDO2 security key, Passwordless logins, Passkey generation and management, Cross-device compatibility, Supports GitHub, Facebook, Microsoft, Tap & Login experience

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IDmelon Standard | $5.99 | per year |
| IDmelon Premium | $11.99 | per year |


### UniChat AI

[App page](https://appshunter.io/ios/app/unichat-ai/id6786035142)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $9.99 | per month |
| Pro | $29.99 | per month |


## Frequently asked questions

### Is IDmelon Authenticator free?

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

### Is UniChat AI free?

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

### Do IDmelon Authenticator or UniChat AI have ads?

Neither IDmelon Authenticator nor UniChat AI shows ads.

### Which is updated more often, IDmelon Authenticator or UniChat AI?

IDmelon Authenticator ships an update every 2 weeks, and UniChat AI every 5 days. Most recently, IDmelon Authenticator was updated on October 24, 2026 and UniChat AI 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.*