# PlagiarismSearch vs Sumflash

The clearest difference is ads: PlagiarismSearch at none against Sumflash's shown. PlagiarismSearch also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. PlagiarismSearch sells 10 one-off in-app purchases and Sumflash sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PlagiarismSearch | Sumflash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 days |
| Size | 33 MB | 14 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [System Tech Online USA Inc.](https://appshunter.io/developer/6789566748) | [Toru Fukui](https://appshunter.io/developer/1888097145) |

## What reviewers say

### PlagiarismSearch

[App page](https://appshunter.io/ios/app/plagiarismsearch/id6789566745)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single Check | $9.99 | one-time |
| 10-Check Pack | $17.99 | one-time |
| Light 90-Day Pass | $41.99 | one-time |
| 50-Check Pack | $41.99 | one-time |
| Premium 30-Day Pass | $65.99 | one-time |
| Standard 90-Day Pass | $77.99 | one-time |
| Premium 90-Day Pass | $107.99 | one-time |
| Light 365-Day Pass | $137.99 | one-time |
| Standard 365-Day Pass | $209.99 | one-time |
| Premium 365-Day Pass | $314.99 | one-time |


### Sumflash

[App page](https://appshunter.io/ios/app/sumflash-mental-math-flash/id6816003975)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is PlagiarismSearch free?

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

### Is Sumflash free?

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

### Do PlagiarismSearch or Sumflash have ads?

Sumflash shows ads; PlagiarismSearch does not.

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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.*