Looking for free hth swim apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
This app helps pool and spa owners maintain water quality by analyzing test strip results. It provides instant recommendations, step-by-step instructions, and access to helpful resources for clear and balanced water.
Automatically record and track your swimming workouts with advanced statistics. Compete with friends and other swimmers on global leaderboards, and access thousands of customizable swim workouts.
Easily schedule swim lessons for your children and track their progress in real-time. This app simplifies managing swim education, allowing you to book makeup lessons, find instructor availability, and monitor your child's development towards becoming a confident swimmer.
HTH™ | Test to Swim™ tops our hth swim apps ranking as of October 2026, with a 4.7-star average from 4.1K App Store ratings, and it's free to download.
Are there free hth swim apps for iPhone?
Yes — 20 of the top hth swim apps we rank are free to download, including HTH™ | Test to Swim™ and Swim.com: Swim Tracker.
Does HTH™ | Test to Swim™ have ads or in-app purchases?
HTH™ | Test to Swim™ has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
How many hth swim apps are on the App Store?
We track 250+ hth swim apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.