Pirates vs Kotsumi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pirates
Take back control of your time by blocking distracting apps and websites. Utilize a focus timer with custom soundscapes to enhance productivity. Enjoy a fun, engaging experience with unique characters and ships while gaining clear insights into your progress.
- App and website blocking
- Focus timer with Pomodoro
- Customizable soundscapes
- Engaging character and ship designs
- On-device blocking via Screen Time API
- Progress insights
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A cozy Pomodoro timer with a crew of cat pirates. Start a focus round, sail with your cats, and earn gold when the timer ends. Your distracting apps stay locked until you're done. No accounts, no ads, no tracking. A TIMER THAT FEELS LIKE A GAME • Pick your focus and break lengths, or use the classic 25/5 • Earn gold every time a round ends, not at the end of the week • Recruit 7 cats, dress them in 170+ outfits, and decorate your ship and camp • Come home to a cozy camp with a hammock, a campfire, and cats wandering around while you work BUILT FOR DISTRACTED BRAINS • One big button to start. No setup, no to-do list first • Short rounds with a visible timer, so time stops feeling invisible • Streaks start at 1 day, so a bad week never wipes you out • Mix your own ambient sound: waves, rain, fireplace, lo-fi, and a purring cat KEEPS YOUR PHONE QUIET • Optional app and website blocking with iOS Screen Time. No VPN, no servers • You pick which apps lock during a round. Calls and texts always work • Quit a round early and you lose the reward. Hard mode locks the timer so you can't end it early MORE ON DECK • Live Activity keeps the timer on your lock screen and Dynamic Island • Three daily missions arrive in your mailbox and pay extra gold • Climb 11 pirate ranks from Deckhand to Legend of the Seven Seas • The Captain's log charts every focus minute PERFECT FOR • Students who want study sessions to feel less lonely and more finished • ADHD brains that do better with short rounds and instant rewards • Writers, developers, and anyone whose work needs long stretches of focus PRICING A monthly subscription, an annual subscription with 14 days free, or a one-time lifetime purchase. All unlock the full app. No ads, ever. PRIVATE BY DESIGN Your progress stays on your phone. No account, no ads, no tracking. The lock runs on your device through Apple's Screen Time, and your app choices never leave it. The only things the app sends out are anonymous usage statistics and crash reports. Terms of Use: https://cachepapi.github.io/pirates-legal/terms/ Privacy Policy: https://cachepapi.github.io/pirates-legal/privacy/ Study with cat pirates. Your first voyage awaits, Captain!
Kotsumi
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: Kotsumi at none against Pirates's 3. Pirates's advantage is iOS requirement (17.0 vs 26.0). On price, 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
Both are free to download. Pirates sells 3 in-app purchases, starting at $3.99 per month. Kotsumi asks for nothing beyond the download.
| Parameter | Pirates | Kotsumi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (12 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 160 MB | 98 MB |
| Age rating | 4+ | 12+ |
| Developer | John Jang | Sticker Mori |
In-app purchases
Pirates
- Monthly$3.991 Month
- Annual14 Days trial$19.991 Year
- Lifetime$29.99
Kotsumi
No in-app purchases









