# Trillion vs RandN

The clearest difference is in-app purchases: RandN at none against Trillion's 2. RandN also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 12 months). Trillion's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price there is nothing between them.

Both are free to download. Trillion sells 2 in-app purchases, starting at $4.99 per month. RandN asks for nothing beyond the download.

Trillion ships an update every 12 months, RandN every 4 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Trillion | RandN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 4 weeks** |
| Size | 29 MB | 2 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kota tada](https://appshunter.io/developer/1658942612) | [Dmitry Kozlov](https://appshunter.io/developer/1249298109) |

## What reviewers say

### Trillion

[App page](https://appshunter.io/ios/app/trillion-probability-simu/id6743378063)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $49.99 | per year |


### RandN

[App page](https://appshunter.io/ios/app/randn/id6767178633)

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

**In-app purchases:** none


## Frequently asked questions

### Is Trillion free?

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

### Is RandN free?

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

### Do Trillion or RandN have ads?

Trillion shows ads; RandN does not.

### Which is updated more often, Trillion or RandN?

Trillion ships an update every 12 months, and RandN every 4 weeks. Most recently, Trillion was updated on October 5, 2026 and RandN 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.*