PondCheck: Pool Leak Test
Bucket test for water loss
Only for iPhone
$1.99 · Designed for iPhone. Not verified for macOS.
iPhone
Losing water and not sure why? Float a bucket, wait a day, and let PondCheck show you exactly how much is evaporation and how much is leak.
Is your pond really leaking, or is it just evaporation?
PondCheck runs the bucket test that pond and pool professionals recommend. Place a bucket in the water, mark both levels, wait a day, and measure again. Because the bucket sits in the same weather as your pond, its drop is your evaporation — measured, not estimated. Whatever your pond loses beyond that is the difference PondCheck reports as leak.
No sensors, no hardware, no subscription. Just a bucket, a ruler, and your iPhone.
HOW IT WORKS
1. Float or stand a bucket in the water and fill it to match the pond level.
2. Mark both levels and start the test in PondCheck.
3. A Live Activity counts down 24 or 48 hours so the second reading never slips your mind.
4. Enter both drops. PondCheck lines them up and shows the gap.
WHAT YOU GET
• Side-by-side view of pond drop vs bucket drop
• The difference in mm or inches per day, converted to liters or gallons per day
• A weekly figure, so you can see what the loss really costs you
• Live Activity countdown for the second reading
• Rainfall during the test fetched automatically, flagged as a confidence warning — rain falls equally into both, so it cancels out in the difference and is never subtracted from your result
• Pump-off vs pump-on comparison to help you narrow the search to plumbing or to the liner
• Ponds, swimming pools, rainwater tanks, livestock troughs and aquariums
• Metric and imperial, liters and gallons
• Fully offline, no account, no data collection
WHY THE BUCKET MATTERS
Evaporation swings enormously with sun, wind, humidity and water temperature. A hot windy week can pull down a pond fast enough to look alarming. The bucket removes the guesswork: it sits in exactly the same weather, so its drop is the real evaporation for your yard on those exact days. No model, no averages, no assumptions.
FOR POOL OWNERS
A pool that drops a little every day is normal. A pool that drops more than the bucket is not. Run the test once with the pump off and once with it on. If the loss grows when the pump runs, the plumbing side is worth a closer look. If it stays the same, the shell or liner is the more likely place to check.
PondCheck reports what you measure. It does not diagnose the cause of a leak or replace an inspection by a professional.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Yoshiaki Hirokawa, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yoshiaki Hirokawa
- Size
- 2.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 32 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 netflowers
