# Sum vs Trilogy Puzzle

The clearest difference is in-app purchases: Trilogy Puzzle at none against Sum's 1. Trilogy Puzzle also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). Sum's advantage is update cadence (every 3 days vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Sum sells 1 in-app purchase, starting at $1.99 per month. Trilogy Puzzle asks for nothing beyond the download.

Sum ships an update every 3 days, Trilogy Puzzle every 5 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sum | Trilogy Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sum-math-puzzle-brain-game/id6450458099/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 91 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Whimseed Studio Private Limited](https://appshunter.io/developer/1668117901) | [Hieu Hoang](https://appshunter.io/developer/1108291419) |

## What reviewers say

### Sum

[App page](https://appshunter.io/ios/app/sum-math-puzzle-brain-game/id6450458099)

This game challenges you to find sums from a grid of numbers before time runs out. It offers multiple modes, from fast-paced challenges to relaxed untimed play, and helps improve mental agility and logic skills.

**Highlights:** Timed addition challenges, Four distinct game modes, Offline play supported, Compete with friends, Detailed progress statistics, Sleek user interface

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |


### Trilogy Puzzle

[App page](https://appshunter.io/ios/app/trilogy-puzzle/id6749085363)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sum free?

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

### Is Trilogy Puzzle free?

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

### Do Sum or Trilogy Puzzle have ads?

Sum shows ads; Trilogy Puzzle does not.

### Which is updated more often, Sum or Trilogy Puzzle?

Sum ships an update every 3 days, and Trilogy Puzzle every 5 months. Most recently, Sum was updated on October 24, 2026 and Trilogy Puzzle on October 7, 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.*