# SidiroAR vs OponUp

The clearest difference is update cadence: SidiroAR at every 3 days against OponUp's fortnightly. SidiroAR also leads on iOS requirement (11.0 vs 15.1). 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.

SidiroAR ships an update every 3 days, OponUp fortnightly. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SidiroAR | OponUp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 48 MB | 58 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Milosz Rzeznik](https://appshunter.io/developer/1561721673) | [Tomasz Przybyl](https://appshunter.io/developer/1244102625) |

## What reviewers say

### SidiroAR

[App page](https://appshunter.io/ios/app/sidiroar/id1506789527)

**Features:** macOS Compatibility

**In-app purchases:** none


### OponUp

[App page](https://appshunter.io/ios/app/oponup/id6762052899)

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

**In-app purchases:** none


## Frequently asked questions

### Is SidiroAR free?

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

### Is OponUp free?

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

### Do SidiroAR or OponUp have ads?

Neither SidiroAR nor OponUp shows ads.

### Which is updated more often, SidiroAR or OponUp?

SidiroAR ships an update every 3 days, and OponUp fortnightly. Most recently, SidiroAR was updated on September 13, 2026 and OponUp on September 23, 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.*