# JMS Prime vs Grader.ai

The clearest difference is in-app purchases: JMS Prime at none against Grader.ai's 2. JMS Prime also leads on device support (3 vs 1). Grader.ai's advantage is update cadence (every 4 days vs every 9 days). On price, ads 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. JMS Prime asks for nothing beyond the download.

JMS Prime ships an update every 9 days, Grader.ai every 4 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | JMS Prime | Grader.ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 66 MB | 155 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [My Aone Learning](https://appshunter.io/developer/824087514) | [Daur Talgatov](https://appshunter.io/developer/1836276247) |

## What reviewers say

### JMS Prime

[App page](https://appshunter.io/ios/app/jms-prime/id6747422262)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is JMS Prime free?

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

### Is Grader.ai free?

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

### Do JMS Prime or Grader.ai have ads?

Neither JMS Prime nor Grader.ai shows ads.

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

JMS Prime ships an update every 9 days, and Grader.ai every 4 days. Most recently, JMS Prime was updated on October 24, 2026 and Grader.ai on October 10, 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.*