# One Plus Two Is Three vs RiddleSum

The clearest difference is rating: RiddleSum at 4.6 against One Plus Two Is Three's 4.0. RiddleSum also leads on ratings volume (10 vs 1). One Plus Two Is Three's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price there is nothing between them.

Both are free to download. RiddleSum sells 1 one-off in-app purchase. One Plus Two Is Three asks for nothing beyond the download.

RiddleSum holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: RiddleSum has 10 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | One Plus Two Is Three | RiddleSum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/one-plus-two-is-three/id1533633628/reviews) | **[4.6 (10 ratings)](https://appshunter.io/ios/app/riddlesum-math-puzzle/id6474078443/reviews)** |
| Number of ratings | 1 | **10** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 11 MB | 20 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Giuseppe Calcagno](https://appshunter.io/developer/510762783) | [Dmitriy Romanov](https://appshunter.io/developer/689955162) |

## What reviewers say

### One Plus Two Is Three

[App page](https://appshunter.io/ios/app/one-plus-two-is-three/id1533633628)

Test your math skills with this fun and fast-paced game. Answer simple arithmetic questions before time runs out to prove your brain's capabilities. It's a free and engaging way to challenge your quick thinking.

**Highlights:** Fast-paced arithmetic challenges, Time-based gameplay, Test math brain skills, Free to play, Engaging game for quick thinking

**In-app purchases:** none


### RiddleSum

[App page](https://appshunter.io/ios/app/riddlesum-math-puzzle/id6474078443)

This number puzzle game challenges you to balance rows and columns by selecting the correct numbers. It offers a relaxing, clean design with hundreds of handcrafted puzzles to sharpen logic and mental math skills at your own pace.

**Highlights:** Hundreds of handcrafted puzzles, Clean and minimal design, Helpful hints, No timers, solve at your own pace, Daily brain workout, Logic and mental math training

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is One Plus Two Is Three free?

One Plus Two Is Three is free to download, with no in-app purchases.

### Is RiddleSum free?

RiddleSum is free to download, with in-app purchases available.

### Which has better reviews, One Plus Two Is Three or RiddleSum?

RiddleSum is rated higher. One Plus Two Is Three averages 4.0 out of 5 from 1 ratings, while RiddleSum averages 4.6 from 10 ratings.

### Do One Plus Two Is Three or RiddleSum have ads?

RiddleSum shows ads; One Plus Two Is Three does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*