# Plagiarism Checker & Detector vs Certify

The clearest difference is update cadence: Certify at weekly against Plagiarism Checker & Detector's every 5 months. Plagiarism Checker & Detector's advantage is device support (4 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Plagiarism Checker & Detector sells 3 in-app purchases, starting at $7.99 per month and Certify sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Plagiarism Checker & Detector ships an update every 5 months, Certify weekly. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Plagiarism Checker & Detector | Certify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/plagiarism-checker-and-detector/id6475201833/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mohsan Ali](https://appshunter.io/developer/1711093363) | [Jhomar Maravillas](https://appshunter.io/developer/6783703541) |

## What reviewers say

### Plagiarism Checker & Detector

[App page](https://appshunter.io/ios/app/plagiarism-checker-and-detector/id6475201833)

This app helps maintain academic and professional integrity by scanning content for plagiarism. It offers real-time checks against a vast database and analyzes citations to ensure originality and proper source attribution.

**Highlights:** Real-time plagiarism scanning, Extensive database comparison, Citation analysis, Document privacy and security, Customizable scan settings, Detailed reporting

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Plan | $7.99 | per month |
| Basic Plan | $10.99 | per month |
| Premium Plan | $17.99 | per month |


### Certify

[App page](https://appshunter.io/ios/app/certify-certificate-maker/id6792487548)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited | $4.99 | one-time |


## Frequently asked questions

### Is Plagiarism Checker & Detector free?

Plagiarism Checker & Detector is free to download, with in-app purchases available.

### Is Certify free?

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

### Do Plagiarism Checker & Detector or Certify have ads?

Neither Plagiarism Checker & Detector nor Certify shows ads.

### Which is updated more often, Plagiarism Checker & Detector or Certify?

Plagiarism Checker & Detector ships an update every 5 months, and Certify weekly. Most recently, Plagiarism Checker & Detector was updated on October 16, 2026 and Certify 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.*