# imOTP vs 2DDocReader

The clearest difference is update cadence: 2DDocReader at every 3 weeks against imOTP's every 8 months. imOTP's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

imOTP ships an update every 8 months, 2DDocReader every 3 weeks. The most recent releases landed on October 10, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | imOTP | 2DDocReader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 20 MB | 6 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johann Marinits](https://appshunter.io/developer/1135035394) | [IDnow GmbH](https://appshunter.io/developer/918081241) |

## What reviewers say

### imOTP

[App page](https://appshunter.io/ios/app/imotp/id1135035395)

**Features:** macOS Compatibility

**In-app purchases:** none


### 2DDocReader

[App page](https://appshunter.io/ios/app/2ddocreader/id6756606232)

Scan and verify 2D-Doc barcodes directly from your documents. This utility app quickly extracts all embedded information from these specialized barcodes.

**Highlights:** Scan 2D-Doc barcodes, Extract barcode information, Document verification, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is imOTP free?

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

### Is 2DDocReader free?

2DDocReader is free to download, with no in-app purchases.

### Do imOTP or 2DDocReader have ads?

Neither imOTP nor 2DDocReader shows ads.

### Which is updated more often, imOTP or 2DDocReader?

imOTP ships an update every 8 months, and 2DDocReader every 3 weeks. Most recently, imOTP was updated on October 10, 2026 and 2DDocReader on September 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.*