# Formula Conversion vs Time Dilation Explorer Lab

The clearest difference is ads: Formula Conversion at none against Time Dilation Explorer Lab's shown. Formula Conversion also leads on iOS requirement (14.1 vs 26.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Formula Conversion sells 1 one-off in-app purchase and Time Dilation Explorer Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Formula Conversion | Time Dilation Explorer Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | — |
| Size | 2 MB | 16 MB |
| Requires iOS | **14.1** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Janek Soomets](https://appshunter.io/developer/1315295062) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Formula Conversion

[App page](https://appshunter.io/ios/app/formula-conversion/id1586539965)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Formula Conversion | $3.99 | one-time |


### Time Dilation Explorer Lab

[App page](https://appshunter.io/ios/app/time-dilation-explorer-lab/id6773199521)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Formula Conversion free?

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

### Is Time Dilation Explorer Lab free?

Time Dilation Explorer Lab is free to download, with in-app purchases available.

### Do Formula Conversion or Time Dilation Explorer Lab have ads?

Time Dilation Explorer Lab shows ads; Formula Conversion does not.

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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.*