Comparison

Passmaster vs uSpectrumX BLE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Passmaster

Securely store and manage all your login credentials in the cloud. Generate strong passwords, access your accounts with a single tap, and enjoy offline access to your encrypted data. Your information is protected with host-proof encryption and optional multi-factor authentication.

Highlights
  • Cloud-based secure storage
  • Single-tap copy/paste
  • TouchID/FaceID unlock
  • Secure password generator
  • Host-proof encryption
  • Automatic backups
  • Offline access
  • Multi-factor authentication
Features
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Passmaster is a simple tool for storing usernames and passwords securely in the cloud. All of your account details are encrypted with a single master password making it easy to use different passwords for each site you visit. This app provides single-tap copy to clipboard of usernames/passwords and unlocking via TouchID/FaceID. Check out the rest of the features. WORKS EVERYWHERE Passmaster works on any modern browser on all operating systems. No browser extensions or special software is required. Just browse to https://passmaster.io or use one of the free mobile apps. SECURE PASSWORD GENERATOR Use the built-in generator to create cryptographically secure random passwords for all your accounts. If any one of your passwords is compromised you can easily generate a new one while the rest of your accounts remain safe. The length and character set is configurable to match each site's requirements. STORE EVERYTHING Passmaster is designed to store usernames and passwords for all the websites you use but can store other related information as well. There's space for account numbers, security questions, website URLs, or anything else you else you might need. HOST-PROOF ENCRYPTION Your account details are for your eyes only so everything is encrypted with javascript directly on your computer or mobile device before being saved to the cloud. Only you know the master password so no one, not even the server admins, can see anything about your account details. AUTOMATIC BACKUPS Enable automatic backups to receive an email with your encrypted account details each time you make a change. This is a great way to ensure you always have a backup of your data. You can also download a backup file to your computer at any time from your account settings. OFFLINE ACCESS Passmaster uses service workers and local storage to make your account details accessible even while you are offline. Your data is automatically synced each time you use Passmaster ensuring it is available whenever you need it. PORTABLE AND DURABLE Passmaster isn't going anywhere but in the event of an extended outage you will always be able to access your accounts details from a backup. Each Passmaster backup contains an "Account Viewer" HTML file which contains everything needed to view your account data. Just open the account viewer and use it to decrypt the backup. MULTI-FACTOR AUTHENTICATION Increase the security of your account by enabling multi-factor authentication. Accessing your accounts from a new device will require a randomly generated password in addition to your master password. OPEN SOURCE Passmaster server and the mobile apps are open source and all the code is available at https://github.com/ryanjohns/passmaster. Because everything is public, you can be certain that there is no tainted or malicious code. If you want to make an improvement, please feel free. Contributions are always welcome!

About

uSpectrumX BLE

Features
Read full description

The uSpectrumX BLE is a lightweight, portable, easy-to-operate spectrometer with BLE remote control operations and SD card data storage. This product has basic features for fast, easy lighting readings, as well as advanced light analytics, and efficient work-flow features for lighting production environments. Supported Devices ・MK350D (≧ FW Ver.1.2.0.B9) # uSpectrumX BLE will continuously add more supported devices in the future.

Screenshots

Passmaster4 screens
uSpectrumX BLE3 screens

Verdict

The call

The clearest difference is iOS requirement: uSpectrumX BLE at 9.0 against Passmaster's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Passmaster ships an update every 12 months, uSpectrumX BLE every 14 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 9 level
Passmaster versus uSpectrumX BLE: the parameters behind the verdict, then further details
ParameterPassmasteruSpectrumX BLE
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 12 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.69.0 — better
Further details — not scored
Size0 MB33 MB
Age rating4+4+
DeveloperRyan JohnsUnited Power Research Technology Corporation

In-app purchases

None

Passmaster

No in-app purchases

None

uSpectrumX BLE

No in-app purchases

Questions

Is Passmaster free?
Passmaster is free to download, with no in-app purchases.
Is uSpectrumX BLE free?
uSpectrumX BLE is free to download, with no in-app purchases.
Do Passmaster or uSpectrumX BLE have ads?
Neither Passmaster nor uSpectrumX BLE shows ads.
Which is updated more often, Passmaster or uSpectrumX BLE?
Passmaster ships an update every 12 months, and uSpectrumX BLE every 14 months. Most recently, Passmaster was updated on November 1, 2026 and uSpectrumX BLE on November 3, 2026.

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