# Collatz Explorer vs Dream Classes Official

The clearest difference is device support: Dream Classes Official at 3 against Collatz Explorer's 1. Dream Classes Official also leads on iOS requirement (14.0 vs 18.6). On price, ads and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Collatz Explorer | Dream Classes Official |
| --- | --- | --- |
| 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 | Monthly | — |
| Monetization | Free | — |
| Size | 1 MB | 99 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Berk Sucu](https://appshunter.io/developer/1852063488) | [Anuj Gupta](https://appshunter.io/developer/1651060633) |

## What reviewers say

### 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


### Dream Classes Official

[App page](https://appshunter.io/ios/app/dream-classes-official/id6757915058)

**In-app purchases:** none


## Frequently asked questions

### Is Collatz Explorer free?

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

### Is Dream Classes Official free?

Dream Classes Official is free to download, with no in-app purchases.

### Do Collatz Explorer or Dream Classes Official have ads?

Neither Collatz Explorer nor Dream Classes Official shows ads.

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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.*