# OOrion vs D20+ Dice Roller 3D

The clearest difference is price: OOrion at Free against D20+ Dice Roller 3D's $0.99. D20+ Dice Roller 3D's advantage is review sentiment (100% vs 79%). On update cadence, ads, in-app purchases and device support there is nothing between them.

OOrion is free to download; D20+ Dice Roller 3D costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OOrion ships an update every 2 weeks, D20+ Dice Roller 3D every 9 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | OOrion | D20+ Dice Roller 3D |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.1 (31 ratings)](https://appshunter.io/ios/app/oorion/id1567957213/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 78.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 391 MB | 3 MB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [OOrion](https://appshunter.io/developer/1567957215) | [John David J Rowlands](https://appshunter.io/developer/1757285647) |

## What reviewers say

### OOrion

[App page](https://appshunter.io/ios/app/oorion/id1567957213)

This smart vision assistant helps you quickly identify, locate, and understand your surroundings. It can find lost items, spot specific objects, and even alert you to obstacles. The app offers hands-free operation and offline functionality with on-device AI.

**Highlights:** Object identification, Item location, Obstacle detection, Offline AI processing, Hands-free operation, Custom item recognition

**Features:** Vision Pro support

**In-app purchases:** none


### D20+ Dice Roller 3D

[App page](https://appshunter.io/ios/app/d20-plus-dice-roller-3d/id6813842210)

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

**In-app purchases:** none


## Frequently asked questions

### Is OOrion free?

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

### Is D20+ Dice Roller 3D free?

D20+ Dice Roller 3D costs $0.99, with no in-app purchases.

### Do OOrion or D20+ Dice Roller 3D have ads?

Neither OOrion nor D20+ Dice Roller 3D shows ads.

### Which is updated more often, OOrion or D20+ Dice Roller 3D?

OOrion ships an update every 2 weeks, and D20+ Dice Roller 3D every 9 days. Most recently, OOrion was updated on November 7, 2026 and D20+ Dice Roller 3D on November 8, 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.*