# Paymentwall Authenticator vs iDocu

The clearest difference is in-app purchases: Paymentwall Authenticator at none against iDocu's 2. Paymentwall Authenticator also leads on device support (3 vs 1) and iOS requirement (8.0 vs 26.0). iDocu's advantage is update cadence (every 2 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. iDocu sells 2 in-app purchases, starting at $0.99 per 7 days. Paymentwall Authenticator asks for nothing beyond the download.

Paymentwall Authenticator ships an update every 2 months, iDocu every 2 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Paymentwall Authenticator | iDocu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 23 MB | 17 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Paymentwall](https://appshunter.io/developer/1012221142) | [Luis Tejada](https://appshunter.io/developer/1446582627) |

## What reviewers say

### Paymentwall Authenticator

[App page](https://appshunter.io/ios/app/paymentwall-authenticator/id1183167927)

**Features:** macOS Compatibility

**In-app purchases:** none


### iDocu

[App page](https://appshunter.io/ios/app/idocu-create-scan-with-ai/id6760587106)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iDocu+ Weekly | $0.99 | per 7 days |
| iDocu+ Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Paymentwall Authenticator free?

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

### Is iDocu free?

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

### Do Paymentwall Authenticator or iDocu have ads?

Neither Paymentwall Authenticator nor iDocu shows ads.

### Which is updated more often, Paymentwall Authenticator or iDocu?

Paymentwall Authenticator ships an update every 2 months, and iDocu every 2 days. Most recently, Paymentwall Authenticator was updated on October 3, 2026 and iDocu on October 6, 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.*