Comparison

Biometric Notes vs App Lock

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

Head to head
About

Biometric Notes

Securely store and manage all your sensitive information, including passwords, PINs, and private notes, using biometric authentication like Face ID and Touch ID. Organize your data with unlimited notes and lists, ensuring your private files are protected from unauthorized access.

Highlights
  • Biometric authentication (Face ID, Touch ID)
  • Unlimited note creation
  • Organize with lists
  • Emoji support
  • Offline functionality
  • Secure personal diary
Features
Read full description

Do you have trouble remembering all your passwords and private information? Do you have trouble securing your private notes? Do you use the same password for every site? Do you want to protect your private files? If so, you need to download Biometric Notes. Biometric Notes is available with a secured fingerprint - Face ID,it keeps your most valuable, passwords, pin codes, logins, credit card numbers, bank accounts and secret notes away from strangers and hackers eyes. With Biometric Notes you are only able to access your own information and secured data. The App is a universal App it works on all devices with fingerprint Touch ID or Face ID capability. (Older devices will still work & the App realizes automatically that there is no Touch ID integrated) APP FEATURES: • Create unlimited number of notes • Touch ID included • Face ID included • Make and organize lists • Support for Emoji Emoticons • Full Retina display • Enable & Disable Fingerprint - Face ID • Lecture notes, business notes and secret notes • Secured personal diary on your iPhone/iPad • Safely store and manage unlimited secret collections • No Ads • No other fees • Highest security guaranteed • Works offline How to use the App? After launching the App for the first time. You are now in the setting page. Enable Touch ID - Face ID in the app. If your device is Touch ID - Face ID compatible then you can access the app with your touch ID. If not then the Touch ID button will be disabled. Press the home button, then enter the app and your notes are all secured. Enjoy Biometric Notes.

About

App Lock

Take control of your device by instantly locking any application. Block distractions, protect sensitive data, or manage screen time with scheduled locking and biometric authentication. Secure up to 50 apps with a clean, private, and offline experience.

Highlights
  • Lock apps with Face ID/fingerprint
  • Lock directly from widgets
  • Scheduled app locking
  • Lock up to 50 apps
  • Private and offline operation
  • Native iOS design
Read full description

Take full control of your apps. Anytime. Anywhere. App Lock lets you lock any app on your device — instantly, securely, and without hassle. Whether you want to block distractions, protect sensitive content, or simply control screen time, App Lock gives you the power to decide when and how apps are used. Key Features: • Lock apps with Face ID Secure any app with a single tap. Only you can unlock it — using your face or finger. • Lock directly from widgets Add our widget to your Home or Lock Screen and instantly lock apps without opening the app. One tap — and the app is locked. • Scheduled locking Set custom schedules to automatically lock apps at specific times. Perfect for work hours, focus sessions, or bedtime routines. • Lock up to 50 apps Go beyond the default 5 and take control of your entire device. Unlimited freedom, no restrictions. • Beautiful, native design Clean, intuitive interface designed for iOS. Fast, responsive, and minimal. • Private & offline We never track your app usage. All data stays on your device and nothing leaves it. Whether you’re staying focused, enforcing screen limits, or just keeping things private — App Lock helps you stay in control. - Privacy Policy: https://lykovstudio.io/privacy - Terms of Use: https://lykovstudio.io/terms

Screenshots

Biometric Notes4 screens
App Lock4 screens

Verdict

The call

The clearest difference is review sentiment: Biometric Notes at 100% against App Lock's 33%. Biometric Notes also leads on in-app purchases (none vs 10) and iOS requirement (12.0 vs 16.0). App Lock's advantage is price (Free vs $1.99) and update cadence (every 4 days vs every 10 months). On ads and device support 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

App Lock is free to download; Biometric Notes costs $1.99 up front. App Lock sells 10 in-app purchases, starting at $3.99 per 7 days. Biometric Notes asks for nothing beyond the download.

UpkeepUpdate frequency

Biometric Notes ships an update every 10 months, App Lock every 4 days. The most recent releases landed on June 7, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
Biometric Notes versus App Lock: the parameters behind the verdict, then further details
ParameterBiometric NotesApp Lock
Price$1.99Free — better
Rating4.5 (348 ratings) — better
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings348 — better
Update frequencyEvery 10 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size10 MB48 MB
Age rating4+4+
DeveloperMohammad MasriLYKOV STUDIO LTD

Customer experience

Biometric Notes

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

App Lock

All ratings348 ratings
Positive86.5%
Neutral4.9%
Negative8.6%
Written reviews15 reviews
Positive33.3%
Neutral13.3%
Negative53.3%

In-app purchases

None

Biometric Notes

No in-app purchases

10 purchases

App Lock

Subscriptions9
  • Weekly$3.997 Days
  • Weekly3 Days trial$4.997 Days
  • Weekly3 Days trial$5.997 Days
Show 6 more
  • Weekly$7.997 Days
  • Annual$14.991 Year
  • Yearly3 Days trial$18.991 Year
  • Yearly$29.991 Year
  • Annual$29.991 Year
  • Annual3 Days trial$29.991 Year
One-time1
  • Lifetime$59.99

Questions

Is Biometric Notes free?
Biometric Notes costs $1.99, with no in-app purchases.
Is App Lock free?
App Lock is free to download, with in-app purchases available.
Do Biometric Notes or App Lock have ads?
Neither Biometric Notes nor App Lock shows ads.
Which is updated more often, Biometric Notes or App Lock?
Biometric Notes ships an update every 10 months, and App Lock every 4 days. Most recently, Biometric Notes was updated on June 7, 2026 and App Lock on September 22, 2026.

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