Comparison

Kotsumi vs Cat's Study

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

Head to head
About

Kotsumi

Features
Read full description

Turn your study plans into focused sessions. Kotsumi brings a focus timer, daily planner, personal notebooks, and shared study rooms into one calm space. Whether you're preparing for an exam, working through homework, or building a study routine, take it one session at a time. FIND YOUR FOCUS Choose a timed focus session with breaks, or study at your own pace with an open-ended session. Start with a task in mind and see the time you put in. MAKE YOUR PLAN YOUR OWN Organize daily tasks and keep notes in your notebooks. Add stickers and study icons to give your planner a personal touch. STUDY TOGETHER Join study rooms, chat with members, and take part in shared focus sessions. Optional room challenges give you another way to work toward a goal together. SEE YOUR PROGRESS Look back on your study history, explore your statistics, and follow your streaks. Notice the sessions that add up over time. PERSONALIZE AS YOU GO Earn Kotsu Coins through studying and use them to personalize your experience. Coins are earned in the app and cannot be purchased for real money. CHOOSE WHAT YOU SHARE Manage your profile visibility and decide what to share through Study Updates. Report content, block accounts, and delete your account from Settings. A little planning. A focused session. Time well spent. Kotsumi is currently available in English.

About

Cat's Study

Enhance your focus with a charming virtual cat companion. This app offers customizable Pomodoro timers, task planning, and progress tracking. Personalize your study space with various themes and sounds, and connect with friends for collaborative focus sessions.

Highlights
  • Customizable Pomodoro and stopwatch timers
  • Task planning and categorization
  • Focus time tracking and streaks
  • Themable rooms and ambient sounds
  • Social focus sessions with friends and crews
  • Cat and room customization with earned coins
Features
Read full description

Cat's Study is a study timer where you focus alongside a cat. Start a task and the cat in the room opens its book too. It rests when you rest and dozes off when you're done. Homework, exams, deep work or reading: it all feels a little less lonely with company. FOCUS TIMER - Stopwatch or Pomodoro, with focus and break lengths set to the minute. - Get notified when it's time to focus or take a break. - Leave the screen alone while you focus and the room dims, with only the timer showing. Handy on a desk stand. TASK PLANNER - Tap โ–ถ next to any of today's tasks to start right away. - Sort tasks into categories like Study or Work, and set daily ones to repeat. - Can't decide? Tap "Just start" and the cat comes up with a task for you. STUDY TRACKER - Daily, weekly and monthly focus time, broken down by category. - Focus 5+ minutes in one go each day to build a streak. - Share your records as an image. ROOM AND SOUNDS - Play rain sounds, thunder, library ambience or lofi music on the turntable, even with the screen off. - Ten room themes, including Cafรฉ in the Rain, Cherry Blossom Study and Spaceship Study. - Earn coins from check-ins, focus sessions and streaks to dress up your cat and its room. FRIENDS AND CREWS - Visit a friend's room and see how long they've focused today. - Start a crew and everyone's cats gather in one room, showing who's focusing now and this week's check-ins. Focus together, no chat needed. - Sign in to use friends and crews. NO PRESSURE - Start without signing in, or sign in to keep your records on any device. - Dark mode supported. Terms of Service: https://catsstudy.com/en/terms/ Privacy Policy: https://catsstudy.com/en/privacy/

Screenshots

Kotsumi4 screens
Cat's Study4 screens

Verdict

The call

The clearest difference is in-app purchases: Kotsumi at none against Cat's Study's 6. Kotsumi also leads on ads (none vs shown). Cat's Study's advantage is iOS requirement (16.6 vs 26.0). On price and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Cat's Study sells 6 in-app purchases, starting at $2.49 per month. Kotsumi asks for nothing beyond the download.

Scorecard3 real differences ยท 5 level
Kotsumi versus Cat's Study: the parameters behind the verdict, then further details
ParameterKotsumiCat's Study
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyโ€”Every 4 days
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
Monetizationโ€”Free with in-app purchases
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS26.016.6 โ€” better
Further details โ€” not scored
Size98 MB199 MB
Age rating12+4+
DeveloperSticker MoriLo-Fi Labs Inc.

In-app purchases

None

Kotsumi

No in-app purchases

6 purchases

Cat's Study

Subscriptions2
  • Cat's Study Pro Monthly$2.491 Month
  • Cat's Study Pro Annual7 Days trial$14.491 Year
One-time4
  • 100 Coins$1.49
  • 500 Coins$6.49
  • 1,000 Coins$9.99
Show 1 more
  • Cat's Study Pro Lifetime$33.49

Questions

Is Kotsumi free?
Kotsumi is free to download, with no in-app purchases.
Is Cat's Study free?
Cat's Study is free to download, with in-app purchases available.
Do Kotsumi or Cat's Study have ads?
Cat's Study shows ads; Kotsumi does not.

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