# 9Solver AI vs Omni Study

The clearest difference is ads: 9Solver AI at none against Omni Study's shown. 9Solver AI also leads on update cadence (every 9 days vs monthly) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 9Solver AI sells 7 in-app purchases, starting at $5.99 per 7 days and Omni Study sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

9Solver AI ships an update every 9 days, Omni Study monthly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 9Solver AI | Omni Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Monthly |
| Size | 110 MB | 69 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Le Hoang Thi Ngoc](https://appshunter.io/developer/1458862040) | [Duy Khiem Dng](https://appshunter.io/developer/1896462033) |

## What reviewers say

### 9Solver AI

[App page](https://appshunter.io/ios/app/9solver-ai-homework-helper/id6758931755)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Weekly | $5.99 | per 7 days |
| Monthly | $29.99 | per month |
| Monthly | $29.99 | per month |
| Yearly | $69.99 | per year |
| Yearly | $99.99 | per year |
| Premium | $99.99 | per year |


### Omni Study

[App page](https://appshunter.io/ios/app/omni-study-schedule-and-notes/id6767295511)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Omni Study Pro | $1.99 | per month |
| Omni Study Pro | $19.99 | per year |
| Omni Study Lifetime Pro | $79.99 | one-time |


## Frequently asked questions

### Is 9Solver AI free?

9Solver AI is free to download, with in-app purchases available.

### Is Omni Study free?

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

### Do 9Solver AI or Omni Study have ads?

Omni Study shows ads; 9Solver AI does not.

### Which is updated more often, 9Solver AI or Omni Study?

9Solver AI ships an update every 9 days, and Omni Study monthly. Most recently, 9Solver AI was updated on October 28, 2026 and Omni Study on October 24, 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.*