# IDmelon Authenticator vs Lock In

The clearest difference is update cadence: Lock In at every 5 days against IDmelon Authenticator's every 2 weeks. IDmelon Authenticator's advantage is iOS requirement (16.0 vs 18). 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 Lock In sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

IDmelon Authenticator ships an update every 2 weeks, Lock In every 5 days. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | IDmelon Authenticator | Lock In |
| --- | --- | --- |
| 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 | 28 MB |
| Requires iOS | **16.0** | 18 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [IDmelon Technologies Inc](https://appshunter.io/developer/1165575817) | [Tigran Matikozyan](https://appshunter.io/developer/1795232052) |

## 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 |


### Lock In

[App page](https://appshunter.io/ios/app/lock-in-your-habits/id6765954792)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lock In Monthly | $4.99 | per month |
| Lock In Annual | $24.99 | per year |


## Frequently asked questions

### Is IDmelon Authenticator free?

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

### Is Lock In free?

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

### Do IDmelon Authenticator or Lock In have ads?

Neither IDmelon Authenticator nor Lock In shows ads.

### Which is updated more often, IDmelon Authenticator or Lock In?

IDmelon Authenticator ships an update every 2 weeks, and Lock In every 5 days. Most recently, IDmelon Authenticator was updated on September 28, 2026 and Lock In on September 21, 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.*