# RiddleSum vs CoinSum

The clearest difference is in-app purchases: CoinSum at none against RiddleSum's 1. CoinSum also leads on ads (none vs shown) and device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. RiddleSum sells 1 one-off in-app purchase. CoinSum asks for nothing beyond the download.

RiddleSum ships an update every 2 months, CoinSum monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RiddleSum | CoinSum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (10 ratings)](https://appshunter.io/ios/app/riddlesum-math-puzzle/id6474078443/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 20 MB | 19 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Romanov](https://appshunter.io/developer/689955162) | [Vahagn Sargsyan](https://appshunter.io/developer/1809663535) |

## What reviewers say

### 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 |


### CoinSum

[App page](https://appshunter.io/ios/app/coinsum/id6745434451)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RiddleSum free?

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

### Is CoinSum free?

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

### Do RiddleSum or CoinSum have ads?

RiddleSum shows ads; CoinSum does not.

### Which is updated more often, RiddleSum or CoinSum?

RiddleSum ships an update every 2 months, and CoinSum monthly. Most recently, RiddleSum was updated on October 24, 2026 and CoinSum on October 25, 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.*