H20Score - Water Rankings

• Free to download
• In-app purchases

Last verified 31 Jul 2026

4.6 1236 ratings · App Store

1. 1/5Pay for public info

   The idea behind this app is solid — people should care about what’s in their water. Unfortunately, the execution doesn’t justify a $20/month subscription. Most of the information presented appears to be aggregated from public sources (municipal water reports, brand disclosures, and general contaminant data), yet the app does not clearly disclose its exact data providers, lab sources, or scoring methodology. For a product asking premium pricing, that lack of transparency is a major red flag. If I’m paying this much, I expect clear citations, named labs, testing dates, and the ability to verify claims. Instead, users are asked to trust a proprietary “score” without seeing the underlying sources. This app may be useful for people who want a quick, simplified overview and don’t mind paying for convenience, but informed users can find the same core information for free directly from municipal Consumer Confidence Reports, the EPA, or bottled water brand disclosures. Until the developers clearly publish their data sources, lab partners, and scoring criteria, the price feels hard to justify.

   Jockstrap helmet · 31 Jul 2026

2. 1/5Not Enough Information

   App lacks information about many brands of water I tried to search. If it didn’t have any testing or research on it, it just gave it a low rating. They had advertising that you’ll see the data behind the rating but not at all true once using the app — overall pretty useless. Icelandic had the highest rating, but again only take that with a grain of salt considering it didn’t include many waters I searched for.

   Melinda Alb · 31 Jul 2026

3. 1/5Useless

   Completely useless app. As soon as you download it, it starts asking you to pay for everything. Every single feature is locked. It pretends to be free but it is basically a fully paid app. You can’t see anything useful without paying. I honestly don’t understand how it has such a high rating. There are better and more honest alternatives. I would not recommend this one at all.

   Adam Be be · 31 Jul 2026

4. 1/5Biased tests, junk ratings

   I thought it’d be nice to check how good my under-sink water filter is. To my surprise, it scored lower than other, more popular units. I dug into the tests and realized they don’t run the same tests for all units. Surprisingly, the higher-rated units weren’t subjected to the same tests as mine, which caused my unit to receive a lower score. Basically, this app is driven by marketing, and it’s very easy to manipulate the results by cherry-picking which tests to include. Avoid this app.

   Jeff2008_123 · 31 Jul 2026

5. 1/5Ai generated

   This app was thrown together by Ai trying to mislead people into buying water and water related products by companies that are seemingly promoted on the app. Completely unrealistic rankings, do not use this app for their info given is not accurate. They don’t provide much info but still rank waters. Lab results will be based off 2 tests which is actually the bare minimum and they rank waters over others with no tests done.

   Aidoon18 · 31 Jul 2026

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