The Water Test
See microplastic in your water
0 ratings
Archived App (Last seen on 10 Oct 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
Rating summary
About
The Water Test turns your iPhone into a microplastics reader for the at-home test kit.
Order a kit at thewatertest.com, run a tap-water sample through the filter, then rest your phone on the kit box and capture the filter. The app uses a long-exposure,
multi-frame capture tuned for the fluorescent stain, then shows you a particle count — Low, Medium, High, or Very high — with the analysis views.
• Purpose-built capture: locked focus, manual exposure, and frame-stacking for a clean, repeatable image
• A clear particle count and severity
• Your history saved on-device — revisit any test with location and date
• Pinch-to-zoom on every image
• No account required
The Water Test is a companion to the physical test kit
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What's New in The Water Test
1.1
June 7, 2026
This version improves how the app takes photos of the filter.
