# Collector RH+ vs Reverse Calculator Game

The clearest difference is in-app purchases: Reverse Calculator Game at none against Collector RH+'s 2. Reverse Calculator Game also leads on iOS requirement (9.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Collector RH+ sells 2 one-off in-app purchases. Reverse Calculator Game asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Collector RH+ | Reverse Calculator Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/reverse-calculator-game/id1495133806/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Free |
| Size | 114 MB | 81 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [RH POZITIF TEKNOLOJI AS](https://appshunter.io/developer/1770083912) | [BSS COMPANY](https://appshunter.io/developer/1094559833) |

## What reviewers say

### Collector RH+

[App page](https://appshunter.io/ios/app/collector-rh-plus/id1480236539)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Golds | $0.99 | one-time |
| Challenge Mode | $1.99 | one-time |


### Reverse Calculator Game

[App page](https://appshunter.io/ios/app/reverse-calculator-game/id1495133806)

This game challenges your math skills by presenting problems where the answer can be the question, and vice versa. Find multiple ways to solve quizzes, improve your logic, and compete for high scores on the leaderboards. It's a quick way to boost your mathematical thinking anytime, anywhere.

**Highlights:** Reverse math problem solving, Multiple solution paths, Score-based challenges, Leaderboard rankings, Quick play sessions

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

**In-app purchases:** none


## Frequently asked questions

### Is Collector RH+ free?

Collector RH+ is free to download, with in-app purchases available.

### Is Reverse Calculator Game free?

Reverse Calculator Game is free to download, with no in-app purchases.

### Do Collector RH+ or Reverse Calculator Game have ads?

Neither Collector RH+ nor Reverse Calculator Game shows ads.

### Which is updated more often, Collector RH+ or Reverse Calculator Game?

Collector RH+ ships an update fortnightly, and Reverse Calculator Game fortnightly. Most recently, Collector RH+ was updated on November 3, 2026 and Reverse Calculator Game on November 3, 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.*