# CloudLabs Kepler's Laws vs StudyLex

The clearest difference is in-app purchases: CloudLabs Kepler's Laws at none against StudyLex's 10. CloudLabs Kepler's Laws also leads on iOS requirement (9.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. StudyLex sells 10 one-off in-app purchases. CloudLabs Kepler's Laws asks for nothing beyond the download.

## The numbers

| Metric | CloudLabs Kepler's Laws | StudyLex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 11 months |
| Size | 101 MB | 146 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jiovany Orozco](https://appshunter.io/developer/1114670847) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### CloudLabs Kepler's Laws

[App page](https://appshunter.io/ios/app/cloudlabs-keplers-laws/id1636764440)

**Features:** macOS Compatibility

**In-app purchases:** none


### StudyLex

[App page](https://appshunter.io/ios/app/studylex/id6480918023)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - BI | $59.99 | one-time |
| Package - BJ | $59.99 | one-time |
| Package - BK | $69.99 | one-time |
| Package - BL | $69.99 | one-time |
| Package - BM | $79.99 | one-time |
| Package - BN | $79.99 | one-time |
| Package - BO | $89.99 | one-time |
| Package - BR | $99.99 | one-time |
| Package - BP | $99.99 | one-time |
| Package - BQ | $99.99 | one-time |


## Frequently asked questions

### Is CloudLabs Kepler's Laws free?

CloudLabs Kepler's Laws is free to download, with no in-app purchases.

### Is StudyLex free?

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

### Do CloudLabs Kepler's Laws or StudyLex have ads?

Neither CloudLabs Kepler's Laws nor StudyLex 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.*