# 2581=? vs Sand Bump

The clearest difference is update cadence: Sand Bump at weekly against 2581=?'s every 9 months. 2581=?'s advantage is iOS requirement (7.0 vs 13.0). On price, ads, 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.

2581=? ships an update every 9 months, Sand Bump weekly. The most recent releases landed on November 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 2581=? | Sand Bump |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (7 ratings)](https://appshunter.io/ios/app/2581/id517654307/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | Free | — |
| Size | 6 MB | 64 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RUCKYGAMES CO., LTD.](https://appshunter.io/developer/315948909) | [App Swim LLC](https://appshunter.io/developer/1475582966) |

## What reviewers say

### 2581=?

[App page](https://appshunter.io/ios/app/2581/id517654307)

A simple puzzle game where players select the correct answer by tapping. It challenges users to think differently and rely on intuition rather than logic.

**Highlights:** Intuitive tap-based gameplay, Pattern recognition challenges, Minimalist design, Quick play sessions

**In-app purchases:** none


### Sand Bump

[App page](https://appshunter.io/ios/app/sand-bump/id1522548503)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 2581=? free?

2581=? is free to download, with no in-app purchases.

### Is Sand Bump free?

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

### Do 2581=? or Sand Bump have ads?

Neither 2581=? nor Sand Bump shows ads.

### Which is updated more often, 2581=? or Sand Bump?

2581=? ships an update every 9 months, and Sand Bump weekly. Most recently, 2581=? was updated on November 7, 2026 and Sand Bump on October 27, 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.*