# rRootage Online HD vs Simoo

The clearest difference is price: rRootage Online HD at Free against Simoo's $0.99. rRootage Online HD also leads on rating (4.7 vs 3.1). Simoo's advantage is review sentiment (88% vs 78%) and iOS requirement (12.0 vs 15.6). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

rRootage Online HD is free to download; Simoo costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

rRootage Online HD holds the better App Store score, 4.7 against 3.1. Both are backed by a comparable volume of ratings — 33 and 17 respectively. Written reviews complicate that: 78% of rRootage Online HD's written reviews are positive against 88% of Simoo's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on August 24, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | rRootage Online HD | Simoo |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (33 ratings)](https://appshunter.io/ios/app/rrootage-online-hd/id387008120/reviews)** | [3.1 (17 ratings)](https://appshunter.io/ios/app/simoo/id405913086/reviews) |
| Number of ratings | **33** | 17 |
| Positive reviews | 78.3% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | **Free** | Paid |
| Size | 15 MB | 15 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [fraglab.at](https://appshunter.io/developer/369950677) | [Code Redman Ltd](https://appshunter.io/developer/405913089) |

## What reviewers say

### rRootage Online HD

[App page](https://appshunter.io/ios/app/rrootage-online-hd/id387008120)

Experience a legendary shooter ported and optimized for mobile devices. Engage in 160 stages across four distinct modes, featuring online leaderboards and achievements. Master unique gameplay mechanics in this classic arcade-style experience.

**Highlights:** Four distinct game modes, 160 challenging stages, Online hi-scores and achievements, Game Center integration, Intuitive touch controls, Multiple gameplay mechanics (Normal, PSY, IKA, GW)

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

**In-app purchases:** none


### Simoo

[App page](https://appshunter.io/ios/app/simoo/id405913086)

A memory game where players repeat a sequence of mooing cows. Test your recall by tapping the cows in the correct order after they moo. Enjoy a cute and simple challenge.

**Highlights:** Simon Says style gameplay, Memory sequence challenge, Cute cow characters, Simple tap controls, Increasing difficulty

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

**In-app purchases:** none


## Frequently asked questions

### Is rRootage Online HD free?

rRootage Online HD is free to download, with no in-app purchases.

### Is Simoo free?

Simoo costs $0.99, with no in-app purchases.

### Which has better reviews, rRootage Online HD or Simoo?

rRootage Online HD is rated higher. rRootage Online HD averages 4.7 out of 5 from 33 ratings, while Simoo averages 3.1 from 17 ratings.

### Do rRootage Online HD or Simoo have ads?

Neither rRootage Online HD nor Simoo shows ads.

### Which is updated more often, rRootage Online HD or Simoo?

rRootage Online HD ships an update every 4 months, and Simoo every 4 months. Most recently, rRootage Online HD was updated on August 24, 2026 and Simoo on August 15, 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.*