# GAMMA AR vs Reedio

The clearest difference is in-app purchases: GAMMA AR at none against Reedio's 2. GAMMA AR also leads on ratings volume (8 vs 1). Reedio's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 86%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Reedio sells 2 in-app purchases, starting at $2.99 per month. GAMMA AR asks for nothing beyond the download.

Reedio holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: GAMMA AR has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 86% of GAMMA AR's written reviews are positive against 100% of Reedio's.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | GAMMA AR | Reedio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (8 ratings)](https://appshunter.io/ios/app/gamma-ar/id1298017298/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/reedio/id6754535686/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 384 MB | 12 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [GAMMA Technologies](https://appshunter.io/developer/1495307075) | [Eugene Ohu](https://appshunter.io/developer/1844487525) |

## What reviewers say

### GAMMA AR

[App page](https://appshunter.io/ios/app/gamma-ar/id1298017298)

Visualize 3D BIM models on construction sites using augmented reality. Compare real-world conditions with plans, detect errors early, and improve communication between site and office. Streamline workflows and reduce costs.

**Highlights:** Augmented reality BIM overlay, On-site construction monitoring, Error detection and prevention, Digital communication channels, Integration with Autodesk, Procore, BIMCollab, BIM model synchronization

**Features:** Vision Pro support

**In-app purchases:** none


### Reedio

[App page](https://appshunter.io/ios/app/reedio/id6754535686)

This app allows users to read, annotate, edit, and organize PDF documents. It offers tools for highlighting, drawing, adding text, and managing pages. Advanced features include redaction, OCR, and measurement capabilities for professional document handling.

**Highlights:** PDF viewing and annotation, Insert images and text boxes, Redact sensitive information, Organize and reorder pages, Fill and sign forms, Scan documents with OCR, Measure distances and areas

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reedio Premium | $2.99 | per month |
| Reedio Premium | $29.99 | per year |


## Frequently asked questions

### Is GAMMA AR free?

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

### Is Reedio free?

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

### Which has better reviews, GAMMA AR or Reedio?

Reedio is rated higher. GAMMA AR averages 4.6 out of 5 from 8 ratings, while Reedio averages 5.0 from 1 ratings.

### Do GAMMA AR or Reedio have ads?

Neither GAMMA AR nor Reedio shows ads.

### Which is updated more often, GAMMA AR or Reedio?

GAMMA AR ships an update every 2 weeks, and Reedio every 2 weeks. Most recently, GAMMA AR was updated on October 19, 2026 and Reedio on October 18, 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.*