# RiddleSum vs Tap Blast

The clearest difference is in-app purchases: Tap Blast at none against RiddleSum's 1. Tap Blast also leads on update cadence (every 2 days vs every 2 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

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

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

## The numbers

| Metric | RiddleSum | Tap Blast |
| --- | --- | --- |
| 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 | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 20 MB | 164 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Romanov](https://appshunter.io/developer/689955162) | [TaeHo WI](https://appshunter.io/developer/1883662126) |

## 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 |


### Tap Blast

[App page](https://appshunter.io/ios/app/tap-blast-diamond-puzzle/id6760292321)

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

**In-app purchases:** none


## Frequently asked questions

### Is RiddleSum free?

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

### Is Tap Blast free?

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

### Do RiddleSum or Tap Blast have ads?

Both RiddleSum and Tap Blast show ads.

### Which is updated more often, RiddleSum or Tap Blast?

RiddleSum ships an update every 2 months, and Tap Blast every 2 days. Most recently, RiddleSum was updated on October 24, 2026 and Tap Blast 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.*