# 2D vs Arvicola Obs

2D and Arvicola Obs are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

2D ships an update every 3 months, Arvicola Obs every 2 months. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 2D | Arvicola Obs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/2d-doc-reader/id555610370/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 30.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 5 MB | 26 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AriadNEXT](https://appshunter.io/developer/555610373) | [idnext](https://appshunter.io/developer/393539841) |

## What reviewers say

### 2D

[App page](https://appshunter.io/ios/app/2d-doc-reader/id555610370)

Scan and verify 2D-Doc barcodes on documents to extract and compare information. This tool is designed for checking authenticity and data integrity on official documents.

**Highlights:** Scan 2D-Doc barcodes, Extract barcode information, Compare with written data, Verify document authenticity

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

**In-app purchases:** none


### Arvicola Obs

[App page](https://appshunter.io/ios/app/arvicola-obs/id1506152474)

**In-app purchases:** none


## Frequently asked questions

### Is 2D free?

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

### Is Arvicola Obs free?

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

### Do 2D or Arvicola Obs have ads?

Neither 2D nor Arvicola Obs shows ads.

### Which is updated more often, 2D or Arvicola Obs?

2D ships an update every 3 months, and Arvicola Obs every 2 months. Most recently, 2D was updated on September 30, 2026 and Arvicola Obs on October 5, 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.*