Comparison

Study Lock vs Clavis

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

Head to head
About

Study Lock

This app blocks distracting applications until you complete study sessions. It uses AI to generate personalized quizzes and flashcards from your course materials, rewarding you with screen time for correct answers. Track your progress with detailed statistics and spaced repetition.

Highlights
  • AI-generated quizzes and flashcards
  • Import course material from PDF, photos, text
  • App blocking via Screen Time integration
  • Spaced repetition learning algorithm
  • Oral analysis with AI evaluation
  • Progress tracking and statistics
  • Pomodoro timer with Live Activity
Features
Read full description

Study Lock blocks your distracting apps until you study. Import your courses from PDF, photos, or plain text, and the app generates personalized quiz questions, flashcards, and oral analysis exercises, all powered by AI. How it works: Import your course material in any format. AI instantly creates quiz questions, flashcards, and oral analysis prompts covering the full content. Select which apps to block using Screen Time. When you try to open a blocked app, Study Lock asks you to study first. Answer correctly and earn screen time as a reward. The harder the question, the more time you unlock. Oral analysis lets you explain concepts out loud while AI evaluates your understanding and gives you a detailed correction. Every question follows a spaced repetition algorithm so you focus on what you actually need to review. Your progress is tracked with streaks, mastery percentages, and detailed session statistics. Study Lock is built for students who want real results without relying on willpower alone. It turns the time you spend on your phone into structured study sessions. Key features: AI-generated quizzes, flashcards, and oral exercises from any course material. PDF, photo, and text import with full-document coverage. Screen Time integration to block and unblock apps based on study performance. Spaced repetition scheduling adapted to your level. Oral analysis with speech recognition and AI-powered evaluation. Pomodoro timer with Live Activity support. Detailed statistics including streaks, accuracy, study time, and earned screen time. Works in any language. No ads. No gimmicks. Just a simple system that works. Privacy Policy: https://studylock.framer.website/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Clavis

Transform your study materials into bite-sized lessons and quick quizzes. Earn access to your favorite apps by completing focused learning sessions, making scrolling the reward for your study efforts.

Highlights
  • AI-generated lessons from your material
  • Quick quizzes for reinforcement
  • App blocking via Screen Time
  • Earn screen time by studying
  • Upload notes, PDFs, and images
  • Progress tracking
Features
Read full description

Your notes are now the key to your distracting apps. Clavis turns your study material into quick, focused lessons — then makes learning the step before scrolling. Upload your notes, PDFs, images, or other study material. Clavis uses AI to turn them into short lessons and quizzes designed to help you learn without committing to a long study session. Complete your lesson, make progress, and earn access to the apps that usually steal your attention. STUDY FIRST. SCROLL LATER. How Clavis works: • Upload your notes, PDFs, images, or study material • Turn your material into short AI-powered lessons • Answer quick questions to reinforce what you learned • Complete your study session • Earn screen time and get back to your apps Built for real study habits You do not always need another hour-long study session. Sometimes you just need to start. Clavis breaks studying into short, repeatable sessions that can fit between classes, before an exam, during a study break, or whenever you catch yourself reaching for your phone. Instead of asking you to stop scrolling completely, Clavis makes scrolling the reward. Features: • AI-generated lessons based on your own material • Quick quizzes that reinforce understanding • App blocking through Screen Time • Earn access to distracting apps by studying • Upload support for notes, PDFs, images, and study content • Subject-based course organization • Progress tracking • Short lessons designed for everyday use • Clean, focused learning experience Whether you're preparing for an exam, reviewing class material, or simply trying to build a more consistent study habit, Clavis gives your screen time a purpose. Your phone already gets your attention. Make it earn it. Study first. Scroll later. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://theclavisapp.com/privacy

Screenshots

Study Lock4 screens
Clavis4 screens

Verdict

The call

The clearest difference is rating: Clavis at 5.0 against Study Lock's 4.5. Study Lock's advantage is ratings volume (11 vs 2). 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. Study Lock sells 2 in-app purchases, starting at $5.99 per month and Clavis sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Clavis holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Study Lock has 11 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Study Lock ships an update every 10 days, Clavis every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
Study Lock versus Clavis: the parameters behind the verdict, then further details
ParameterStudy LockClavis
PriceFreeFree
Rating4.5 (11 ratings)5.0 (2 ratings) — better
Number of ratings11 — better2
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS1716.0 — better
Further details — not scored
Size42 MB5 MB
Age rating4+4+
DeveloperEthan DietrichClavis App LLC

Customer experience

Study Lock

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Clavis

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Study Lock

Subscriptions2
  • Monthly Pro$5.991 Month
  • Annual Pro3 Days trial$34.991 Year
2 purchases

Clavis

Subscriptions2
  • Clavis Pro Monthly3 Days trial$7.991 Month
  • Clavis Pro Yearly3 Days trial$59.991 Year

Questions

Is Study Lock free?
Study Lock is free to download, with in-app purchases available.
Is Clavis free?
Clavis is free to download, with in-app purchases available.
Which has better reviews, Study Lock or Clavis?
Clavis is rated higher. Study Lock averages 4.5 out of 5 from 11 ratings, while Clavis averages 5.0 from 2 ratings.
Do Study Lock or Clavis have ads?
Neither Study Lock nor Clavis shows ads.
Which is updated more often, Study Lock or Clavis?
Study Lock ships an update every 10 days, and Clavis every 3 weeks. Most recently, Study Lock was updated on October 28, 2026 and Clavis on October 24, 2026.

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