# Geometry vs Synth Sum

The clearest difference is ads: Synth Sum at none against Geometry's shown. Synth Sum also leads on update cadence (daily vs every 3 months). Geometry's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Geometry sells 1 one-off in-app purchase and Synth Sum sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Geometry ships an update every 3 months, Synth Sum daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Geometry | Synth Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/synth-sum-neon-dash/id6793998487/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 159 MB | 61 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Webmate Digital](https://appshunter.io/developer/1585409483) | [Matthew Leonard](https://appshunter.io/developer/522479113) |

## What reviewers say

### Geometry

[App page](https://appshunter.io/ios/app/geometry-flappy-bird-games/id1464903792)

Guide a square bird through a dangerous world filled with obstacles to collect food for its chicks. Navigate through fire, ice, and sharp machines to prove your survival skills.

**Highlights:** Balancing in air, Avoiding death machines, Collecting tasty worms, Breaking ice obstacles, Balancing at platforms, Geometric world design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Synth Sum

[App page](https://appshunter.io/ios/app/synth-sum-neon-dash/id6793998487)

A neon rhythm dash game where players tap to jump over obstacles and collect numbers. The goal is to hit the exact sum to pass through doors and progress through levels. Features include multiple worlds, practice modes, and leaderboards.

**Highlights:** Tap to jump, Hit exact sum to clear doors, 16 levels across five worlds, Practice with checkpoints, Endless and Daily modes, Earn stars for skins, Game Center leaderboards

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Neon Kit | $1.99 | one-time |
| Sunset Kit | $1.99 | one-time |
| Magenta Kit | $1.99 | one-time |
| Unlock All Worlds | $2.99 | one-time |
| All Kits Bundle | $4.99 | one-time |


## Frequently asked questions

### Is Geometry free?

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

### Is Synth Sum free?

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

### Do Geometry or Synth Sum have ads?

Geometry shows ads; Synth Sum does not.

### Which is updated more often, Geometry or Synth Sum?

Geometry ships an update every 3 months, and Synth Sum daily. Most recently, Geometry was updated on November 3, 2026 and Synth Sum on October 31, 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.*