# ViGravitatis vs RubyLearn

The clearest difference is price: ViGravitatis at Free against RubyLearn's $6.99. RubyLearn's advantage is update cadence (every 2 months vs every 47 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ViGravitatis is free to download; RubyLearn costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ViGravitatis ships an update every 47 months, RubyLearn every 2 months. The most recent releases landed on September 8, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ViGravitatis | RubyLearn |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 2 months** |
| Size | 34 MB | 90 MB |
| Requires iOS | **14.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Artyom Rudakov](https://appshunter.io/developer/1500000619) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## What reviewers say

### ViGravitatis

[App page](https://appshunter.io/ios/app/vigravitatis/id1500181187)

**In-app purchases:** none


### RubyLearn

[App page](https://appshunter.io/ios/app/rubylearn/id6743567848)

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

**In-app purchases:** none


## Frequently asked questions

### Is ViGravitatis free?

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

### Is RubyLearn free?

RubyLearn costs $6.99, with no in-app purchases.

### Do ViGravitatis or RubyLearn have ads?

Neither ViGravitatis nor RubyLearn shows ads.

### Which is updated more often, ViGravitatis or RubyLearn?

ViGravitatis ships an update every 47 months, and RubyLearn every 2 months. Most recently, ViGravitatis was updated on September 8, 2026 and RubyLearn on September 21, 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.*