Apps by YUTAKA IZUMIYAMA
Sleep time record charts app icon

Lifestyle

Sleep time record charts

YUTAKA IZUMIYAMA

Free download In-app purchases unconfirmed
Open on Apple

About this app

Sleep time is calculated and displayed based on bedtime and wake-up date and time. Displays sleep time in a line graph. ・Record bedtime 1. Tap the "Bedtime" button. If you press/tap for a long time, step 2/step 3 will be skipped. The current date and time will be set. 2. Select the year, month, and day and tap "Next". 3. Select your bedtime and tap OK. ・When recording the wake-up date and time 1. Tap the "Wake up date and time" button in the wake up date and time column of the table. If you press/tap for a long time, step 2/step 3 will be skipped. The current date and time will be set. 2. Select the year, month, and day and tap "Next". 3. Select your wake-up time and tap "OK". ▼Sleep time The sleep time in the table is automatically displayed based on the bedtime and wake-up date and time. ▼When recording your mood when you wake up 1. Tap "Condition" in the Condition column of the table. 2. Select a condition. ▼Display chart 1. Press the line chart button at the top. 2. Click the displayed chart from the menu below. Monthly chart sleep/wake chart sleep/wake rhythm chart Annual total/average/chart Full period chart ▼Add user 1. Press the user button at the top 2. Press add user 3. Enter the username and press OK. ▼Edit username 1. Press the user button at the top 2. Press user edit and delete 3. Press the username from the list. 4. Edit the user name on the edit screen and press OK. ▼Delete username 1. Press the user button at the top 2. Press user edit and delete 3. Swipe the username you want to delete from the list from the left and press Delete. ▼If you want to delete all records From the menu on the top right, select Erase all data. You can delete all records.

Latest release

What’s New

Version 26.6.26 Jun 4, 2026

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Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 18, 2026 · 0 ratings Aug 18, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 18, 2026 · Free Aug 18, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 18, 2026 · 3:06 AM Free

Screenshots

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