# AI Essay Grader & Paper Scan vs Least Common Multiple Solver

The clearest difference is update cadence: Least Common Multiple Solver at every 11 days against AI Essay Grader & Paper Scan's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Essay Grader & Paper Scan sells 3 in-app purchases, starting at $5.99 per 7 days and Least Common Multiple Solver sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

AI Essay Grader & Paper Scan ships an update monthly, Least Common Multiple Solver every 11 days. The most recent releases landed on October 31, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | AI Essay Grader & Paper Scan | Least Common Multiple Solver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Size | 38 MB | 179 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Knyaz Harutyunyan](https://appshunter.io/developer/1712024056) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### AI Essay Grader & Paper Scan

[App page](https://appshunter.io/ios/app/ai-essay-grader-and-paper-scan/id6762123776)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $5.99 | per 7 days |
| Premium Monthly | $9.99 | per month |
| Premium Lifetime | $69.99 | one-time |


### Least Common Multiple Solver

[App page](https://appshunter.io/ios/app/least-common-multiple-solver/id6792020111)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is AI Essay Grader & Paper Scan free?

AI Essay Grader & Paper Scan is free to download, with in-app purchases available.

### Is Least Common Multiple Solver free?

Least Common Multiple Solver is free to download, with in-app purchases available.

### Do AI Essay Grader & Paper Scan or Least Common Multiple Solver have ads?

Neither AI Essay Grader & Paper Scan nor Least Common Multiple Solver shows ads.

### Which is updated more often, AI Essay Grader & Paper Scan or Least Common Multiple Solver?

AI Essay Grader & Paper Scan ships an update monthly, and Least Common Multiple Solver every 11 days. Most recently, AI Essay Grader & Paper Scan was updated on October 31, 2026 and Least Common Multiple Solver on November 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.*