# Beautiful Numbers vs Collatz Explorer

Beautiful Numbers and Collatz Explorer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Beautiful Numbers ships an update every 6 weeks, Collatz Explorer monthly. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Beautiful Numbers | Collatz Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (7 ratings)](https://appshunter.io/ios/app/collatz-explorer/id6755121221/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | — | Free |
| Size | 8 MB | 1 MB |
| Requires iOS | **18.4** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Rygula](https://appshunter.io/developer/879228654) | [Berk Sucu](https://appshunter.io/developer/1852063488) |

## What reviewers say

### Beautiful Numbers

[App page](https://appshunter.io/ios/app/beautiful-numbers/id6747298785)

**Features:** macOS Compatibility

**In-app purchases:** none


### Collatz Explorer

[App page](https://appshunter.io/ios/app/collatz-explorer/id6755121221)

Explore mathematical sequences with this app. It calculates the standard Collatz sequence for any number you enter and can also display sequences from an alternative 3x-1 function.

**Highlights:** Calculate Collatz sequences, Calculate 3x-1 function sequences, Input any number, Visualize sequences

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

**In-app purchases:** none


## Frequently asked questions

### Is Beautiful Numbers free?

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

### Is Collatz Explorer free?

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

### Do Beautiful Numbers or Collatz Explorer have ads?

Neither Beautiful Numbers nor Collatz Explorer shows ads.

### Which is updated more often, Beautiful Numbers or Collatz Explorer?

Beautiful Numbers ships an update every 6 weeks, and Collatz Explorer monthly. Most recently, Beautiful Numbers was updated on September 29, 2026 and Collatz Explorer on September 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*