Nautilus vs Tsumoru

For the hours you spend studying or working alone. While you dive, the apps you chose truly won't open. Exams, certifications, deep work included. Nautilus folds three things into one action: dive. REAL BLOCKING, AT THE OS LEVEL Tap to dive, and the apps you chose (social, YouTube, etc.) are shielded on the spot via Screen Time. Not a reminder — while you're diving, those apps genuinely won't open. Block sets change per focus type (e.g. Reading vs. Coding). DUMP A DISTRACTION IN 3 SECONDS A stray "I need to do that" mid-session? Jot it down from the Lock Screen or Dynamic Island in about 3 seconds, without leaving focus. Everything you dumped is waiting for you when you surface. SURFACE, AND IT'S ALREADY A JOURNAL When you surface, that session becomes a log entry automatically — what you dove into, how long, what distractions you dumped. No manual logging. DESIGNED FOR ZERO GUILT No red badges. A zero-minute day isn't punished. "Depth," the number that reflects your focus quality, only ever goes up. Blocking relies on the device's Screen Time framework.

Track the time you spend reading, studying and practicing with Tsumoru. Start a timer, save your session, and see your hours add up. A fifteen-minute session counts too. Taking a day off never resets your total. START, FINISH, SAVE Choose a category and start the timer on your iPhone. Name your categories for what matters to you: language study, piano, reading or another skill. Create as many as you need. No NFC tag or Apple Watch required. SEE YOUR WEEK AND YOUR PROGRESS • See your time by weekday in a weekly chart • Review each category's total and the last 12 months • Set an hours goal and daily or weekly time budgets • Estimate when you will reach your goal at your pace over the last 7 days MORE WAYS TO START Start and end sessions from your Apple Watch. Use the Action button, or hold your iPhone to an NFC tag on your book or desk. Tap the tag again to finish. NFC is optional and needs a tag, sold separately, plus a Shortcuts automation set up once. PAUSED TIME DOESN'T COUNT Optionally block selected apps during a session. To use one, choose to pause and unblock, then reopen that app. Paused time is excluded from your record. Return to Tsumoru to resume the same session. YOUR TIME, AT A GLANCE See today's time and your running session on the Lock Screen, and your total and category breakdown in Home Screen widgets. Tsumoru also supports Live Activities, the Dynamic Island, StandBy and Apple Watch complications. KEEP PAGES AND NOTES Photograph the page when you finish reading to capture its page number. Dictate a note to remember what you worked on. Enable these options for each category. Text recognition and speech recognition run on your device. KEEP YOUR OWN PACE No ads, no account, no streaks, no rankings and no notification reminders. Records come from the timer. You can shorten or delete a session, but you cannot add time manually or increase recorded time. Records are stored on your iPhone and in your own iCloud. Export to CSV or JSON, or choose to save completed sessions to Calendar. REQUIREMENTS • iPhone with iOS 26 or later • Watch controls need watchOS 26 or later and a connection to your iPhone • NFC needs a tag and a Shortcuts automation • App blocking needs Screen Time permission • Page capture needs camera access; dictation needs microphone and speech recognition access