
About
This alarm clock app requires users to complete a mission to turn it off, ensuring they are fully awake. It also offers sleep analysis, backward scheduling, and power naps. The app prioritizes privacy with no tracking or ads.
What's New in OKIRO
1.4.0
September 8, 2026
Still won't stop until you're up. Everything around that just got better. ■ Sleep analysis (Pro) Wear your Apple Watch to bed and OKIRO reads last night from Health — stages, heart rate, breathing, blood oxygen, wrist temperature, even how loud your room got. It doesn't just list numbers. It explains them: "You had 10 minutes of daylight yesterday, and took 40 minutes to fall asleep." Every reading is shown against your own normal, so there is nothing to look up. Export a fortnight as a spreadsheet. Read-only, and nothing leaves your iPhone. ■ Skip Japanese holidays Weekday alarms can now sit out public holidays, worked out on your iPhone. ■ Work backwards from arrival Say when you need to be there. OKIRO subtracts your travel and getting-ready time. ■ Tag mission (Pro) The alarm stops only when you scan the NFC tag on your mirror or the barcode on your toothpaste. ■ Match my calendar (Pro) Rings earlier only on the days that start early. You get a heads-up the evening before. ■ Smart wake on Apple Watch (Pro) Buzzes when you're in light sleep in the last 30 minutes — never later than the time you set. ■ 44 alarm tones, up from 13 (Pro) Temple bell, music box, taiko, an old telephone, and voices that call you until you're up. Searchable. ■ Power nap, skip just the next one, lock before it rings ■ Settings moved, on purpose The alarm editor's first screen is now just time, days, mission and sound. The rest lives under "More options".
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FAQ
Does OKIRO have ads?
No, OKIRO is completely ad-free. The app emphasizes privacy and does not contain advertisements.
What missions can I use to turn off the OKIRO alarm?
You can choose from math problems, shaking the device, typing, memory games, counting steps, taking a photo, or using an NFC tag to prove you are awake.
How does OKIRO analyze sleep?
By wearing an Apple Watch to bed, OKIRO reads data from Health, including sleep stages, heart rate, HRV, breathing, blood oxygen, and wrist temperature, to provide insights.
Can I schedule alarms to skip public holidays with OKIRO?
Yes, OKIRO offers a free feature to skip Japanese public holidays for weekday alarms, which is worked out on your iPhone.
What is the pricing for OKIRO Pro?
OKIRO Pro is available via subscription for ¥480/month or ¥2,400/year, with a 7-day free trial. Payment is charged to your Apple ID.
How often is OKIRO updated?
The latest version, 1.4.0, was released on September 8, 2026. Updates are frequent, ensuring new features and improvements.
What devices does OKIRO support?
OKIRO is supported on Apple Watch, iPhone, and iPad, offering a seamless experience across your Apple ecosystem.
Is OKIRO suitable for children?
OKIRO has an age rating of 4+, making it suitable for younger users. Its engaging mission-based alarms can be a fun way to wake up.










