SUIKEI - Aquarium Journal
Photo-first aquarium log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Photos and care logs, so you can see how your tank changed. Free for 45 days.
Do you remember what your tank looked like six months ago?
The things you look at every day are the things you stop seeing change. SUIKEI keeps
the photos and the numbers so you can look back.
Logging takes two taps — you can do it standing at the tank. Photos group by month and
your tank becomes a portfolio. Fixed-point mode ghosts the previous shot over the
camera so the change in a layout is unmistakable.
Enter water parameters exactly as your test kit reports them. NO₃ or NO₃-N, °dH or ppm,
specific gravity or salinity — including your hydrometer's calibration temperature.
No ads, ever. The free plan is enough to keep one tank properly for a year.
■ 45-day free trial
All features are free for 45 days from the day you add your first tank. After that the
app becomes read-only: you can still view, export and delete everything you recorded,
but you cannot add or edit records, photos or water readings.
■ SUIKEI Premium
Monthly: JPY 480 / month
Yearly: JPY 4,800 / year (JPY 400 per month)
・Payment is charged to your Apple ID at confirmation of purchase.
・It renews at the same price unless cancelled at least 24 hours before the period ends.
・The renewal is charged within 24 hours before the period ends.
・Cancel any time from the subscription settings on your device.
Cancellation is not possible from within the app.
・Any unused portion of a free trial is forfeited when you purchase a subscription.
Privacy Policy: https://suikei.verdolab.com/privacy
Terms of Use: https://suikei.verdolab.com/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, yutaka sugita, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- yutaka sugita
- Size
- 39.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- SUIKEI Premium (Monthly) $2.99
- SUIKEI Premium (Yearly) $29.99
- Copyright
- ©2026 VERDO LAB