# PassCheck

> Password strength checker and data breach detection tool. (iPhone/iPad app by Suyash Srijan.)

- Source: https://appshunter.io/ios/app/passcheck/id1351597225 (this page in markdown: same URL + `.md`)
- Developer: [Suyash Srijan](https://appshunter.io/developer/1012929553)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 19 MB
- Languages: American English
- Released: 2018-02-25
- Data updated: 2026-07-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/passcheck/id1351597225/reviews.md

## What is PassCheck?

PassCheck is a free app that allows you to check how strong and secure your existing passwords are, by calculating how much time it would take an average computer to crack it.

It also checks if your passwords have been compromised i.e found in a data breach.

If you discover you're using an insecure password, the app allows you to generate a strong and secure password!

How data breach discovery works:

1. When you input your password, PassCheck calculates its SHA-1 hash.
2. It passes the first 5 digits of the hash to the PwnedPasswords API, which returns a list of hash suffixes with the same first 5 digits (i.e prefix), and the breach count.
3. Passcheck combines each of the suffixes with the prefix and checks if the final hash is identical to the password's hash, warns you if it is.

This way, your entire password (i.e its hash) is never sent, only a small portion of it, which helps keep your password anonymous.

## Key features

- Password strength analysis
- Data breach detection
- Secure password generation
- SHA-1 hashing
- PwnedPasswords API integration


## Frequently asked questions about PassCheck

### How does PassCheck check password strength?

PassCheck calculates the time an average computer would take to crack your password, providing a measure of its strength and security.

### Does PassCheck send my full password to its servers?

No, PassCheck is designed with privacy in mind. It only sends the first 5 digits of your password's SHA-1 hash to the PwnedPasswords API, ensuring your full password remains anonymous.

### How does PassCheck detect if my password has been compromised?

It checks your password against the PwnedPasswords API. If your password's hash matches one found in a data breach, PassCheck will warn you.

### Can PassCheck generate new passwords for me?

Yes, if you find that you are using an insecure password, PassCheck offers a feature to generate strong and secure passwords for you.

### What devices does PassCheck support?

PassCheck is available for iPhone and iPod devices.

### Is PassCheck free to use?

Yes, PassCheck is a free application, and it does not feature in-app purchases or advertisements.

### How often is PassCheck updated?

PassCheck was last updated on February 25, 2018, with version 1.0. Further updates are not detailed in the provided information.

### What is the age rating for PassCheck?

PassCheck has an age rating of 4+, making it suitable for a wide range of users concerned with online security.

## Version history (last 1 release)

### 1.0 — 2018-02-25

This app has been updated by Apple to display the Apple Watch app icon.

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## Related topics

[suyash srijan](https://appshunter.io/ios/topics/suyash-srijan)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*