# SummedUp vs RiddleSum

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

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

SummedUp ships an update every 3 months, RiddleSum every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SummedUp | RiddleSum |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 103 MB | 20 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Wayne Perry](https://appshunter.io/developer/1341619685) | [Dmitriy Romanov](https://appshunter.io/developer/689955162) |

## What reviewers say

### SummedUp

[App page](https://appshunter.io/ios/app/summedup/id1618114376)

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

**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 SummedUp free?

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

### Is RiddleSum free?

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

### Do SummedUp or RiddleSum have ads?

Both SummedUp and RiddleSum show ads.

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

SummedUp ships an update every 3 months, and RiddleSum every 2 months. Most recently, SummedUp was updated on October 25, 2026 and RiddleSum on October 24, 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.*