Home Assistant vs HTReminder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Home Assistant
Control your smart home devices from anywhere with this open-source solution. Automate routines, monitor your home's status, and integrate thousands of devices for enhanced privacy and sustainability.
- Control thousands of smart devices
- Automate home routines
- Discover and configure new devices
- Securely share location for automation
- Receive home status notifications
- Build custom widgets
- Integrate with voice assistants
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The Home Assistant Companion app allows you to access your Home Assistant instance on the go. Home Assistant is the smart home solution focused on privacy, choice, and sustainability. It runs locally in your home via a device like the Home Assistant Green or Raspberry Pi. This app connects to all the most powerful features of Home Assistant, - One app to control the whole home - Home Assistant is compatible with the biggest brands in the smart home, connecting to thousands of smart devices and services. - Discover automatically and quickly configure new devices - such as Philips Hue, Sonos, and IKEA Tradfri. - Automate everything - Make all the devices in your home work in harmony - have your lights dim when you start watching a movie, or turn off your heat when you’re away from home. - Keep your home’s data in the home - use it privately to see past trends and averages. - Connect to open standards with hardware add-ons - including Z-Wave, Zigbee, Matter, Thread, and Bluetooth. - Connect anywhere - If you would like to access this app while away from home, the most secure and simple way to get started is Home Assistant Cloud. The app unlocks your smartphone or tablet as a home automation tool. - Securely share your location, using it to automate heating, security, and so much more. - Get notifications on what's happening in your home, from detecting leaks to doors left open, you have full control over what it tells you. - Carplay functionality lets you open a garage or disable the security system from the dash of your car. - Build your own widgets to control any device in your home with a tap. - Integrate Home Assistant's functionality into Shortcuts, for example have your phone’s morning alarm turn on the coffee machine. - Apple Watch compatibility can show your home's temperature on a watch face or quickly activate devices. - Text or talk to your local voice assistant on your device. - Mac compatibility allows you to control your home from your desktop, but also to share data to build automation, like having your streaming lights turn on when your camera is active. Join the over 1 million users and empower your home with better privacy, choice and sustainability. Compatible with: Airthings, Amazon Alexa, Amcrest, Apple HomeKit, Apple TV, ASUSWRT, August, Belink WeMo, Bluetooth, Bose SoundTouch, Broadlink, BTHome, deCONZ, Denon, Devolo, DLNA, Ecobee, Ecovacs, Ecowitt, Elgato, EZVIZ, Fritz, Fully Kiosk, GoodWe, Govee, Growatt, Hikvision, Hive, Home Connect, Homematic, HomeWizard, Honeywell, iCloud, IFTTT, IKEA Tradfri, Insteon, Jellyfin, LG Smart TVs, LIFX, Logitech Harmony, Lutron Caseta, Magic Home, Matter, MotionEye, MQTT, MusicCast, Nanoleaf, Netatmo, Nuki, OctoPrint, ONVIF, Opower, Overkiz, OwnTracks, Panasonic Viera, Philips Hue, Pi-hole, Plex, Reolink, Ring, Roborock, Roku, Samsung TVs, Sense, Sensiba, Shelly, SmartThings, SolarEdge, Sonarr, Sonos, Sony Bravia, Spotify, Steam, SwitchBot, Synology, Tado, Tasmota, Tesla Wall, Thread, Tile, TP-Link Smart Home, Tuya, UniFi, UPnP, Verisure, Vizio, Wallbox, WebRTC, WiZ, WLED, Xbox, Xiaomi BLE, Yale, Yeelight, YoLink, Z-Wave, Zigbe
HTReminder
This app uses AI to scan and read your pool or hot tub water test strips, providing instant chemical level readings. It logs all your tests, offers chemical suggestions, and sets maintenance reminders to keep your water balanced and clean.
- AI Test Strip Scanner
- Chemical Suggestions
- Maintenance Reminders
- Water Chemistry History
- Multiple Pool/Tub Management
- Chemical Inventory Tracking
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Keep track of your hot tub or pool water. HTReminder is a water testing app that uses AI to read your test strips, keeps a log of every test, and reminds you when maintenance is due. Just snap a photo of your test strip and HTReminder reads pH, chlorine, bromine, alkalinity, and hardness levels. Check the readings, fix any value by hand, and save the test. KEY FEATURES • AI Test Strip Scanner — Point your camera at a used test strip and get readings in seconds. Works with common multi-pad test strips; you can always enter values by hand. • Chemical Suggestions — Based on your readings, your water volume and the products you choose, HTReminder suggests amounts to consider. Always follow the directions on your product's label. • Spa & Pool Maintenance Reminders — Set schedules for water testing, filter cleaning, water changes, and shock treatments. Get a notification when a task is due. • 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 an easy log of their water tests • 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 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 Apple 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
Screenshots
Verdict
The clearest difference is review sentiment: Home Assistant at 54% against HTReminder's 0%. Home Assistant also leads on rating (4.7 vs 3.6) and in-app purchases (none vs 6). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. HTReminder sells 6 in-app purchases, starting at $1.99 per month. Home Assistant asks for nothing beyond the download.
Home Assistant holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Home Assistant has 4.1K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 54% of Home Assistant's written reviews are positive against 0% of HTReminder's.
Home Assistant ships an update every 10 days, HTReminder every 6 days. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.
| Parameter | Home Assistant | HTReminder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (4.1K ratings) — better | 3.6 (5 ratings) |
| Positive reviews | 54.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 4.1K — better | 5 |
| Update frequency | Every 10 days | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 232 MB | 96 MB |
| Age rating | +4 | 17+ |
| Developer | Nabu Casa, Inc | enoch bryant |
Customer experience
Home Assistant
HTReminder
In-app purchases
Home Assistant
No in-app purchases
HTReminder
- Consumer Monthly7 Days trial$1.991 Month
- Professional Basic Monthly$9.991 Month
- Consumer Yearly7 Days trial$19.991 Year
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- Professional Plus Monthly$19.991 Month
- Professional Basic Yearly$99.991 Year
- Professional Plus Yearly$199.001 Month









