MonoStudy: Study Timer & Cards
Track study time, build habits
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
New: Home Screen widgets! See your study time and goal ring, and start the timer without opening the app. Spaced-repetition flashcards, to-dos, and stats — all in one.
Study timer, flashcards, to-dos, and stats — everything you need to study, in one beautifully minimal app.
MonoStudy is the all-in-one study app built for students. No clutter, no ads, no distractions. Just open the app and start studying.
■ 5 Reasons Students Choose MonoStudy
1. A study timer that starts in one tap
・Open the app and start tracking instantly — zero friction, zero excuses.
・Lap tracking per subject shows exactly where your time goes.
・See today's total and your last session at a glance, so you're always motivated for one more focused session.
2. Flashcards with spaced repetition, backed by science
・Just add the words and terms you want to learn. Our spaced repetition algorithm quizzes you at the perfect moment — right before you forget.
・Complete your daily review, and vocabulary moves into long-term memory. No cramming, no guesswork.
・Organize everything your way with tags and color categories.
3. A to-do list that clears your head
・Jot down today's tasks and check them off as you go.
・No more wondering "what's next?" — just pure focus on the task in front of you.
4. Graphs and stats that turn effort into progress
・Review your study trends by day, week, and month in beautiful charts.
・Watch today's hours, monthly totals, and lifetime study time stack up. The more you study, the more satisfying it gets.
5. Radically simple. Nothing gets in your way.
・No bloated features. No ads. Nothing that breaks your focus.
・A clean, refined interface that makes tracking and reviewing feel effortless — open the app, and you're already studying.
■ Perfect For
・Exam takers: manage and optimize study time per subject for entrance exams and finals
・University students: balance lectures, papers, certifications, and language learning (TOEIC, TOEFL, and more)
・Anyone struggling with memorization: learn vocabulary and technical terms with a scientific approach, not brute force
・Habit builders: stop giving up after three days and build a study habit that actually sticks
■ Pricing
・Basic (Free): all core features, free forever.
・Premium: advanced options like unlimited flashcards, for those who want more.
Download MonoStudy for free and start with today's study session.
Build a study habit that lasts.
Terms of Service: https://onethingstudy.com/terms.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Home Screen widgets are here!
• See today's study time and your daily goal ring right on your Home Screen — no need to open the app
• Start the timer with a tap, or jump straight into flashcards and adding words
• Study record widget with weekly/monthly views (Premium)
Improvements & fixes
• Polished design and usability across the app — easier-to-tap buttons, better readability, and Reduce Motion support
• Clearer screen when sign-in fails, with a retry option
• Fixed Japanese units appearing in some English labels
The developer, Kotaro Shirai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Financial Info
- Contact Info
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kotaro Shirai
- Size
- 88.2 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Kotaro Shirai