# PasswordCaptain vs Ultimate Unit Converter Pro

The clearest difference is rating: Ultimate Unit Converter Pro at 5.0 against PasswordCaptain's 4.4. Ultimate Unit Converter Pro also leads on update cadence (every 3 days vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ultimate Unit Converter Pro holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

PasswordCaptain ships an update every 2 months, Ultimate Unit Converter Pro every 3 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | PasswordCaptain | Ultimate Unit Converter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (8 ratings)](https://appshunter.io/ios/app/passwordcaptain/id633804150/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ultimate-unit-converter-pro/id6463096286/reviews)** |
| Number of ratings | **8** | 3 |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 17 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MobileSandbox LLC](https://appshunter.io/developer/316784826) | [Talal El Zeini](https://appshunter.io/developer/1521747288) |

## What reviewers say

### PasswordCaptain

[App page](https://appshunter.io/ios/app/passwordcaptain/id633804150)

Securely manage all your login credentials, credit card details, and other sensitive information using biometric authentication. This app offers government-grade encryption and a variety of pre-formatted templates for easy organization and quick access to your data.

**Highlights:** Biometric login (Touch ID/Face ID), AES 256-bit encryption, 17 input record templates, Auto-lock and immediate lock features, Email backup option, Secure data management

**In-app purchases:** none


### Ultimate Unit Converter Pro

[App page](https://appshunter.io/ios/app/ultimate-unit-converter-pro/id6463096286)

This utility app provides a streamlined way to perform unit conversions quickly and efficiently. It's designed to be an essential tool for users who need to make calculations on the go. Elevate your conversion experience with this powerful application.

**Highlights:** Seamless unit conversion, Quick calculations, Efficient workflow, Essential utility tool, Pro-grade experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PasswordCaptain free?

PasswordCaptain is free to download, with no in-app purchases.

### Is Ultimate Unit Converter Pro free?

Ultimate Unit Converter Pro is free to download, with no in-app purchases.

### Which has better reviews, PasswordCaptain or Ultimate Unit Converter Pro?

Ultimate Unit Converter Pro is rated higher. PasswordCaptain averages 4.4 out of 5 from 8 ratings, while Ultimate Unit Converter Pro averages 5.0 from 3 ratings.

### Do PasswordCaptain or Ultimate Unit Converter Pro have ads?

Neither PasswordCaptain nor Ultimate Unit Converter Pro shows ads.

### Which is updated more often, PasswordCaptain or Ultimate Unit Converter Pro?

PasswordCaptain ships an update every 2 months, and Ultimate Unit Converter Pro every 3 days. Most recently, PasswordCaptain was updated on October 3, 2026 and Ultimate Unit Converter Pro on October 6, 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.*