# Random Balls vs Mark6 Reminder

The clearest difference is in-app purchases: Mark6 Reminder at none against Random Balls's 2. Random Balls's advantage is ads (none vs shown) and update cadence (every 11 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Random Balls sells 2 one-off in-app purchases. Mark6 Reminder asks for nothing beyond the download.

Random Balls ships an update every 11 days, Mark6 Reminder every 6 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Random Balls | Mark6 Reminder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (210 ratings)](https://appshunter.io/ios/app/random-balls-shake-them/id1515002475/reviews)** | — |
| Number of ratings | **210** | — |
| Positive reviews | 79.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 37 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [乃君 黄](https://appshunter.io/developer/1337343608) | [Heung Kai Chan](https://appshunter.io/developer/1569414929) |

## What reviewers say

### Random Balls

[App page](https://appshunter.io/ios/app/random-balls-shake-them/id1515002475)

Generate sequences of random numbers using a physics-based simulation. Shake your device to let virtual balls collide and determine your random results. Offers multiple ball machines for diverse random data generation.

**Highlights:** Physics-based ball simulation, Accelerometer-driven collisions, Multiple unique ball machines, Generate up to 20 balls per machine, Group up to 10 machines, High-quality randomness

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support developer | $3.99 | one-time |
| Unlock all balls | $4.99 | one-time |


### Mark6 Reminder

[App page](https://appshunter.io/ios/app/mark6-reminder/id6744552226)

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

**In-app purchases:** none


## Frequently asked questions

### Is Random Balls free?

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

### Is Mark6 Reminder free?

Mark6 Reminder is free to download, with no in-app purchases.

### Do Random Balls or Mark6 Reminder have ads?

Mark6 Reminder shows ads; Random Balls does not.

### Which is updated more often, Random Balls or Mark6 Reminder?

Random Balls ships an update every 11 days, and Mark6 Reminder every 6 weeks. Most recently, Random Balls was updated on October 27, 2026 and Mark6 Reminder on October 25, 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.*