# Parallel Math vs River Crossing IQ

The clearest difference is review sentiment: Parallel Math at 100% against River Crossing IQ's 31%. Parallel Math also leads on in-app purchases (none vs 5) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. River Crossing IQ sells 5 one-off in-app purchases. Parallel Math asks for nothing beyond the download.

## The numbers

| Metric | Parallel Math | River Crossing IQ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/parallel-math/id892379653/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **100.0% of reviews** | 31.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 21 MB |
| Requires iOS | **5.1.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shane Clifford](https://appshunter.io/developer/850287078) | [techplus jsc](https://appshunter.io/developer/495958001) |

## What reviewers say

### Parallel Math

[App page](https://appshunter.io/ios/app/parallel-math/id892379653)

Test your brain's multitasking abilities by solving two math problems simultaneously. It's easy to learn but challenging to master, offering a fun way to exercise your cognitive skills.

**Highlights:** Solve two math problems at once, Easy to play, Hard to master, Cognitive skill exercise, Fun gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### River Crossing IQ

[App page](https://appshunter.io/ios/app/river-crossing-iq/id896626950)

Engage your mind with logic puzzles and river riddles. Explore diverse levels, each with a unique story and illustrated rules, at your own pace. Enjoy offline play and optional hints earned through gameplay or rewarded ads.

**Highlights:** Logic puzzles, River riddles, 42 levels across seven chapters, Illustrated rules and guidance, Offline play, Optional hints, Rewarded ads

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Automatic Ads | $0.99 | one-time |
| 20 Stars | $0.99 | one-time |
| Ad removal | $0.99 | one-time |
| 60 Stars | $1.99 | one-time |
| 150 Stars | $4.99 | one-time |


## Frequently asked questions

### Is Parallel Math free?

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

### Is River Crossing IQ free?

River Crossing IQ is free to download, with in-app purchases available.

### Do Parallel Math or River Crossing IQ have ads?

River Crossing IQ shows ads; Parallel Math does not.

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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.*