
Oto Diary
One Sound, One Day
0 ratings
Free
In-App Purchases
About
■ Description (max 4000 characters)
Oto Diary is a new kind of journal — one made entirely of sound.
You've taken the photo, but somehow the feeling of that moment is gone.
This app captures what photos can't: the air, the ambience, the life.
Record just 10–60 seconds of ambient sound, once a day.
The morning coffee brewing. Your child laughing. Rain against the window.
These are the sounds that make a life — and this app keeps them safe.
--- Cassette Tape UI ---
A nostalgic cassette tape design that feels tactile and alive.
Hold the bottom reel to record. Release to save.
Watch the tape wind as your memories accumulate.
--- Time Capsule ---
One year from today, the sound you recorded will be delivered back to you via notification.
"I forgot my child's voice sounded like that."
Memories fade. Sounds don't.
--- Calendar View ---
Every recording appears as a waveform on the calendar.
Your streak of days becomes a visible record of presence.
--- Perfect for ---
- Parents who want to remember their children's voices
- Pet owners
- Anyone who struggles to keep a journal
- Travelers and adventurers
- Those who cherish everyday moments
--- How It Works ---
1. Open the app
2. Hold the bottom reel (10–60 seconds)
3. Release to save
4. Add a mood and title
That's it. The magic is in showing up every day.
[Free]
- Up to 30 recordings
- Current month calendar
- Time Capsule notifications
[Premium — one-time purchase]
- Unlimited recordings
- Time Capsule playback
- No ads
Start recording your life — one sound at a time.
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What's New in Oto Diary
1.1
May 5, 2026
Minor improvements and performance enhancements.
1
In-App Purchases
$3.99
Sound Diary Premium
Unlimited recordings, Time Capsule playback, no ads.



