# Runes Guide vs ML Engineer Pro Prep

The clearest difference is ads: ML Engineer Pro Prep at none against Runes Guide's shown. ML Engineer Pro Prep also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Runes Guide sells 2 in-app purchases, starting at $1.99 per month and ML Engineer Pro Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Runes Guide | ML Engineer Pro Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 123 MB | 84 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Olga Ivanova](https://appshunter.io/developer/1733570435) | [AITYTECH](https://appshunter.io/developer/1885549185) |

## What reviewers say

### Runes Guide

[App page](https://appshunter.io/ios/app/runes-guide/id6746326376)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| runes_by_oliva_subscription | $1.99 | per month |
| runes_by_oliva_donation | $1.99 | one-time |


### ML Engineer Pro Prep

[App page](https://appshunter.io/ios/app/ml-engineer-pro-prep/id6762125525)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Runes Guide free?

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

### Is ML Engineer Pro Prep free?

ML Engineer Pro Prep is free to download, with in-app purchases available.

### Do Runes Guide or ML Engineer Pro Prep have ads?

Runes Guide shows ads; ML Engineer Pro Prep does not.

### Which is updated more often, Runes Guide or ML Engineer Pro Prep?

Runes Guide ships an update every 3 weeks, and ML Engineer Pro Prep every 3 weeks. Most recently, Runes Guide was updated on September 24, 2026 and ML Engineer Pro Prep on October 2, 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.*