# Parts4You vs TOTP Authenticator

The clearest difference is in-app purchases: Parts4You at none against TOTP Authenticator's 5. Parts4You also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). TOTP Authenticator's advantage is update cadence (every 11 days vs every 4 months). On price and ads there is nothing between them.

Both are free to download. TOTP Authenticator sells 5 in-app purchases, starting at $1.49 per month. Parts4You asks for nothing beyond the download.

Parts4You ships an update every 4 months, TOTP Authenticator every 11 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | Parts4You | TOTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 11 days** |
| Size | 22 MB | 72 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Martin Scharf](https://appshunter.io/developer/1052806676) | [COGNIFLY LTD](https://appshunter.io/developer/1808620132) |

## What reviewers say

### Parts4You

[App page](https://appshunter.io/ios/app/parts4you/id1052806677)

**Features:** macOS Compatibility

**In-app purchases:** none


### TOTP Authenticator

[App page](https://appshunter.io/ios/app/totp-authenticator-2fa/id6804706587)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.49 | per month |
| Weekly Premium | $2.99 | per 7 days |
| Annual Premium | $39.99 | per year |
| Premium Access | $39.99 | per year |
| Lifetime Premium | $59.99 | one-time |


## Frequently asked questions

### Is Parts4You free?

Parts4You is free to download, with no in-app purchases.

### Is TOTP Authenticator free?

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

### Do Parts4You or TOTP Authenticator have ads?

Neither Parts4You nor TOTP Authenticator shows ads.

### Which is updated more often, Parts4You or TOTP Authenticator?

Parts4You ships an update every 4 months, and TOTP Authenticator every 11 days. Most recently, Parts4You was updated on October 29, 2026 and TOTP Authenticator on October 29, 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.*