# keep vs Tangle 3D

The clearest difference is in-app purchases: keep at none against Tangle 3D's 1. keep also leads on ads (none vs shown) and update cadence (every 2 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tangle 3D sells 1 one-off in-app purchase. keep asks for nothing beyond the download.

keep ships an update every 2 days, Tangle 3D every 4 weeks. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | keep | Tangle 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/tangle-3d-untie-master/id6535689963/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 257 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [思航 赵](https://appshunter.io/developer/1624456697) | [Navid Rahmani](https://appshunter.io/developer/1702263590) |

## What reviewers say

### keep

[App page](https://appshunter.io/ios/app/keep-running/id6504623366)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tangle 3D

[App page](https://appshunter.io/ios/app/tangle-3d-untie-master/id6535689963)

This game challenges your problem-solving skills with intricate cable sorting and untangling puzzles. Enhance your IQ and cognitive abilities with this engaging mental workout.

**Highlights:** Cable sorting puzzles, Untangling challenges, Brain workout, Enhance IQ, Cognitive ability improvement

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is keep free?

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

### Is Tangle 3D free?

Tangle 3D is free to download, with in-app purchases available.

### Do keep or Tangle 3D have ads?

Tangle 3D shows ads; keep does not.

### Which is updated more often, keep or Tangle 3D?

keep ships an update every 2 days, and Tangle 3D every 4 weeks. Most recently, keep was updated on October 6, 2026 and Tangle 3D on October 2, 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.*