# Grader.ai vs PrepRoadRunner

The clearest difference is ads: Grader.ai at none against PrepRoadRunner's shown. PrepRoadRunner's advantage is update cadence (daily vs every 4 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Grader.ai sells 2 in-app purchases, starting at $14.99 per month and PrepRoadRunner sells 4 in-app purchases, starting at $10.99 per month. Whichever you choose, the download price is not the number that matters.

Grader.ai ships an update every 4 days, PrepRoadRunner daily. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Grader.ai | PrepRoadRunner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Daily** |
| Size | 155 MB | 62 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Daur Talgatov](https://appshunter.io/developer/1836276247) | [Chun Sang Yip](https://appshunter.io/developer/1890747841) |

## What reviewers say

### Grader.ai

[App page](https://appshunter.io/ios/app/graderai/id6751673412)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grader Plus Monthly | $14.99 | per month |
| Grader Plus Yearly | $79.99 | per year |


### PrepRoadRunner

[App page](https://appshunter.io/ios/app/preproadrunner/id6761666111)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $10.99 | per month |
| Premium Max Monthly | $14.99 | per month |
| Premium Yearly | $49.99 | per year |
| Premium Max Yearly | $79.99 | per year |


## Frequently asked questions

### Is Grader.ai free?

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

### Is PrepRoadRunner free?

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

### Do Grader.ai or PrepRoadRunner have ads?

PrepRoadRunner shows ads; Grader.ai does not.

### Which is updated more often, Grader.ai or PrepRoadRunner?

Grader.ai ships an update every 4 days, and PrepRoadRunner daily. Most recently, Grader.ai was updated on October 10, 2026 and PrepRoadRunner on October 13, 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.*