Comparison

App Lock vs Study Timer

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

Head to head
About

App Lock

Secure your sensitive applications and personal data with this privacy tool. Easily lock any app to prevent unauthorized access and keep your information out of sight from prying eyes. Enjoy enhanced device security and peace of mind.

Highlights
  • Lock any application
  • Hide sensitive apps
  • Block websites
  • Intuitive interface
  • Prevent unauthorized access
  • Enhance device privacy
Features
Read full description

App Lock is a privacy app designed to help keep your sensitive apps private and secure on your device. With App Lock, you can easily block any app you want, ensuring that you remain private and out of sight from prying eyes. The app features an intuitive and user-friendly interface that allows you to quickly and easily select the apps you want to lock. Once an app has been locked, nobody will be able to access your private data. App Lock is the perfect solution for anyone looking to ensure more privacy and security on your device. * In order to use App Lock you need to purchase the Lilucat Pro which is an annual service that costs 29.99$. Payment will be charged to iTunes Account at confirmation of purchase and auto-renews at the same price unless disabled in iTunes Account Settings at least 24 hours before the end of the current period. Your subscription can be managed in your iTunes Account Settings. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Links Terms of Service: https://applock.lilucat.com/legal/terms Privacy: https://applock.lilucat.com/legal/privacy

About

Study Timer

Features
Read full description

Focus better. Study consistently. Build your streak. Study Timer: Pomodoro Focus helps you stay focused, manage study sessions, and build productive habits with a simple Pomodoro timer designed for students, work, and everyday focus. Whether you're preparing for an exam, completing homework, reading, working, or trying to stop procrastinating, start a focus session and concentrate on what matters. STUDY TIMER Turn study time into focused sessions. Start the timer when you're ready to study and keep your attention on one task at a time. Perfect for: • Exam preparation • Homework • Reading • Revision • University and school • Writing • Coding • Deep work POMODORO FOCUS SESSIONS Use the Pomodoro technique to alternate focused work with intentional breaks. Complete sessions, take breaks, and start again when you're ready. Create a study rhythm that works for you instead of relying on motivation alone. BUILD YOUR FOCUS STREAK Consistency matters. Complete focused sessions regularly to build your streak and turn studying into a daily habit. Watch your progress grow as focused minutes become productive days. TRACK YOUR PROGRESS See how much time you spend studying and focusing. Review your completed sessions, follow your progress, and use your history to stay consistent with your goals. FOCUS FOR STUDY OR WORK Not studying today? Use the timer for: • Work sessions • Personal projects • Reading • Planning • Writing • Coding • Creative work • Daily tasks A SIMPLE PRODUCTIVITY SYSTEM You don't need a complicated planner to start. Choose what you want to accomplish, start your study timer, and focus on one session at a time. REDUCE DISTRACTIONS Create dedicated time for focused work and make it easier to step away from distracting habits while studying. FOR STUDENTS AND FOCUS SEEKERS Whether you're studying for your next exam, working through a to-do list, or simply trying to improve your daily focus, Study Timer gives you a simple way to start and stay consistent. START YOUR NEXT FOCUS SESSION One focused session can become a streak. Start your Study Timer, use the Pomodoro technique, and turn focused time into daily progress. Privacy Policy: https://www.avelisselabs.com/privacy/focus-proof Terms of Use: https://www.avelisselabs.com/terms

Screenshots

App Lock4 screens
Study Timer4 screens

Verdict

The call

The clearest difference is ads: Study Timer at none against App Lock's shown. On price, update cadence, in-app purchases 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

Both are free to download. App Lock sells 6 in-app purchases, starting at $4.99 per month and Study Timer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

App Lock ships an update fortnightly, Study Timer every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
App Lock versus Study Timer: the parameters behind the verdict, then further details
ParameterApp LockStudy Timer
PriceFreeFree
Rating4.5 (5.3K ratings) — better—
Positive reviews57.9% of reviews—
Number of ratings5.3K — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size43 MB4 MB
Age rating4+4+
DeveloperLilucatAvelisse labs LLC

Bugs and requests

App Lock

Reported bugs

3 issues
  • Buttons at the bottom of the screen are inaccessible on some devices
  • Prompts are not legible with larger font settings
  • Locked apps can still be accessed by restarting the phone

Requested features

4 requests
  • Allow concealing the app locker
  • Add scheduling/time-based locking
  • Provide separate unlock code from phone passcode
  • Improve usability when Dynamic Island is in use

Study Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

App Lock

Subscriptions5
  • App Lock$4.991 Month
  • App Lock3 Days trial$7.997 Days
  • App Lock2 variants$9.991 Month
Show 2 more
  • App Lock$14.991 Year
  • App Locker for iPhone$29.991 Year
One-time1
  • App Lock$59.99
3 purchases

Study Timer

Subscriptions2
  • Monthly pro access$2.991 Month
  • Yearly pro access$19.991 Year
One-time1
  • Lifetime pro access$24.99

Questions

Is App Lock free?
App Lock is free to download, with in-app purchases available.
Is Study Timer free?
Study Timer is free to download, with in-app purchases available.
Do App Lock or Study Timer have ads?
App Lock shows ads; Study Timer does not.
Which is updated more often, App Lock or Study Timer?
App Lock ships an update fortnightly, and Study Timer every 3 weeks. Most recently, App Lock was updated on October 27, 2026 and Study Timer on October 25, 2026.

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