# Bumpy Race 3D vs Perfect Sum

The clearest difference is review sentiment: Perfect Sum at 100% against Bumpy Race 3D's 0%. Perfect Sum also leads on update cadence (every 3 days vs every 2 weeks). Bumpy Race 3D's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bumpy Race 3D ships an update every 2 weeks, Perfect Sum every 3 days. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Bumpy Race 3D | Perfect Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/perfect-sum/id6477300117/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 271 MB | 139 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [BOOM GAMES YAZILIM VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1507029889) | [Benjamin Richy](https://appshunter.io/developer/1636888789) |

## What reviewers say

### Bumpy Race 3D

[App page](https://appshunter.io/ios/app/bumpy-race-3d/id1515577836)

Engage in a humorous racing game where strategic road manipulation, not car control, determines victory. Utilize your intelligence to overcome obstacles and win each race. Experience a unique and enjoyable gameplay.

**Highlights:** Road block manipulation, Speed up mechanics, IQ-based strategy, Humorous racing, Unique gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Perfect Sum

[App page](https://appshunter.io/ios/app/perfect-sum/id6477300117)

A captivating puzzle game where you strategically place shapes on a numbered board to reach a perfect sum. Unlock new buildings and enjoy stunning visuals and rewarding animations as you progress through increasingly challenging levels.

**Highlights:** Strategic shape placement, Numbered board puzzles, Unlockable buildings, Increasing difficulty levels, Rewarding animations, Stunning visuals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bumpy Race 3D free?

Bumpy Race 3D is free to download, with no in-app purchases.

### Is Perfect Sum free?

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

### Do Bumpy Race 3D or Perfect Sum have ads?

Perfect Sum shows ads; Bumpy Race 3D does not.

### Which is updated more often, Bumpy Race 3D or Perfect Sum?

Bumpy Race 3D ships an update every 2 weeks, and Perfect Sum every 3 days. Most recently, Bumpy Race 3D was updated on September 30, 2026 and Perfect Sum on October 11, 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.*