# HTReminder — Pool & Hot Tub Water Testing

> AI-powered pool and hot tub water testing and chemical calculator. (iPhone/iPad app by enoch bryant.)

- Source: https://appshunter.io/ios/app/htreminder/id6755663309 (this page in markdown: same URL + `.md`)
- Developer: [enoch bryant](https://appshunter.io/developer/1848621858)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Rating: 3.60/5 from 5 App Store ratings · 1 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 91 MB
- Languages: American English
- Released: 2025-12-11
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/htreminder/id6755663309/reviews.md

## What is HTReminder?

Never guess your hot tub or pool water chemistry again. HTReminder is a pool chemical calculator and water testing app that uses AI to scan your test strips and tell you exactly what chemicals to add.

Just snap a photo of your test strip and HTReminder instantly reads pH, chlorine, bromine, alkalinity, and hardness levels. No squinting at color charts. No guessing. Just clear, accurate results in seconds.

KEY FEATURES

• AI Test Strip Scanner — Point your camera at any test strip and get instant, accurate readings. Works with all major test strip brands including AquaChek, LaMotte, Taylor, Clorox, HTH, and more.

• Pool & Hot Tub Chemical Calculator — Based on your readings and your water volume, HTReminder calculates exactly how much chlorine, bromine, pH increaser, pH decreaser, or alkalinity increaser to add. No more math or guessing at dosage amounts.

• Spa & Pool Maintenance Reminders — Set schedules for water testing, filter cleaning, water changes, and shock treatments. Get notifications so you never forget a maintenance task.

• Water Chemistry History — Track your pH, chlorine, bromine, alkalinity, and calcium hardness over time. See trends and catch problems before they get expensive.

• Multiple Hot Tubs & Pools — Manage water chemistry for your hot tub, swimming pool, spa, or all of them. Each gets its own history, chemical inventory, and maintenance reminders.

• Chemical Inventory — Track what pool and spa chemicals you have on hand so you know what to buy before your next water test.

WORKS WITH:
• Hot tubs and spas (chlorine or bromine)
• Swimming pools (above ground and in-ground)
• Swim spas and plunge pools
• Saltwater pools and hot tubs

PERFECT FOR:
• Hot tub owners who want perfect water chemistry without the guesswork
• Pool owners tired of squinting at test strip color charts
• New hot tub or pool owners learning water maintenance
• Pool service professionals managing multiple clients

Free to download and start testing. Stop guessing your pool and hot tub chemistry. Download HTReminder today.

SUBSCRIPTION INFORMATION
HTReminder offers multiple auto-renewing subscription tiers (Consumer and Professional, monthly and annual plans). Exact title, length, and price of each plan are displayed on the subscription screen before purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Payment is charged to your iTunes account upon confirmation of purchase. Manage or cancel subscriptions in your Account Settings after purchase.

Privacy Policy: https://htremind.com/privacy
Terms of Use (EULA): https://htremind.com/terms

## Key features

- AI test strip scanner
- Chemical calculator
- Maintenance reminders
- Water chemistry history
- Multiple pool management
- Chemical inventory tracking

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Consumer Yearly | $19.99 | per year |
| Professional Plus Monthly | $19.99 | per month |
| Consumer Monthly | $1.99 | per month |
| Professional Basic Yearly | $99.99 | per year |
| Professional Basic Monthly | $9.99 | per month |
| Professional Plus Yearly | $199.00 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/htreminder/id6755663309/reviews.md

### 1/5 — Doesn’t do anything

*2026-02-02*

I am using FROG test strips- one of the most popular. The app doesn’t seem to recognize them and doesn’t appear to analyze or do anything

**Developer response:** We're sorry to hear this wasn't working for you. FROG test strips have worked in our own testing, so we'd love to understand what happened on your end. Were you getting an error message, or did the scan complete but give unexpected results? A few things that can affect the scan are lighting, how the strip is held, and making sure the correct brand is selected before scanning. Please reach out at support@htremind.com with a screenshot or description of what you're seeing and we'll get it sorted out for you.

## Frequently asked questions about HTReminder

### How does HTReminder scan test strips?

HTReminder uses AI to analyze a photo of your test strip. It accurately reads levels for pH, chlorine, bromine, alkalinity, and hardness without manual interpretation of color charts.

### What pool and hot tub chemicals can HTReminder calculate?

Based on your water test results and water volume, HTReminder calculates the exact amounts of chlorine, bromine, pH increaser, pH decreaser, and alkalinity increaser to add.

### Can HTReminder manage multiple pools or hot tubs?

Yes, HTReminder allows you to manage water chemistry for multiple hot tubs, swimming pools, spas, or swim spas, each with its own history and reminders.

### Does HTReminder offer maintenance reminders?

Yes, you can set schedules for water testing, filter cleaning, water changes, and shock treatments, receiving notifications to ensure consistent maintenance.

### What are the subscription options for HTReminder?

HTReminder offers Consumer and Professional plans with monthly and yearly options. Consumer plans start at $1.99/month with a 7-day free trial, while Professional plans are priced higher.

### How often is HTReminder updated?

The app was last updated on March 18, 2026, with version 1.0.6. This indicates active development and support for the application.

### What devices support HTReminder?

HTReminder is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

### What is the age rating for HTReminder?

HTReminder has an age rating of 17+, suggesting it may contain content or features that are not suitable for younger users.

## Version history (last 5 releases)

### 1.0.19 — 2026-08-21

Reliability improvements to subscription handling so purchases always link to your account. Bug fixes and under-the-hood polish.

### 1.0.17 — 2026-08-16

Performance, reliability, and behind-the-scenes improvements.

### 1.0.14 — 2026-08-10

Performance and reliability improvements.
Updated to meet the latest App Store requirements.
Behind-the-scenes improvements to keep your water testing fast and accurate.

### 1.0.13 — 2026-07-02

Fixed dark mode display issues where text and icons were invisible on several screens.

### 1.0.11 — 2026-06-30

Bug fixes and performance improvements — search results now load faster for returning users, and the app now remembers what you were doing while it searched.

## More apps by enoch bryant

- [WhimTrav](https://appshunter.io/ios/app/whimtrav/id6754517705)
- [PayChunk - Cash Budget App](https://appshunter.io/ios/app/paychunk-cash-budget-app/id6758851094)

All apps by enoch bryant: https://appshunter.io/developer/1848621858

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*