myCistern IoT vs Graf IoT
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
myCistern IoT
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myCistern IoT is the official app for monitoring and managing your myCistern system. Designed for connected cistern, rainwater, irrigation, and IoT control solutions, the app gives you a clear overview of your devices, current fill levels, system status, and important device information ā anytime, anywhere. With myCistern IoT, you can: ⢠View current fill levels and tank status ⢠Monitor volume, level height, and device condition ⢠Manage connected devices from a central dashboard ⢠Access detailed device information, ownership, and location data ⢠Use a clean interface with light and dark mode support ⢠Stay connected to your myCistern platform with a modern IoT experience This app is intended for users with compatible myCistern hardware, devices, or platform access. Existing legacy users may continue using the previous myCistern app during the transition period, while myCistern IoT serves as the new official app experience going forward.
Graf IoT
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GRAF IoT shows you how much water is in your system at any time and alerts you before it gets critical. The app connects to your GRAF BlueLevel and GRAF ARCOS devices and brings level, volume and system status together on one dashboard. You get a notification when the level runs too low or too high. The built-in weather forecast shows you the rainfall heading for your site. FEATURES ⢠Fill level and remaining volume in litres and percent ⢠Alerts for critical fill levels ⢠Weather forecast for the location of your system ⢠Level height and device status for every system ⢠All devices on one central dashboard ⢠Device data, assignment and location at a glance ⢠Light and dark mode For cisterns and rainwater systems with GRAF BlueLevel and for retention and infiltration systems with GRAF ARCOS. A connected GRAF device is required to use the app.
Screenshots
Verdict
myCistern IoT and Graf IoT are too close to call on the numbers: across 6 compared parameters ā price, update cadence, ads and in-app purchases among them ā neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
myCistern IoT ships an update every 3 weeks, Graf IoT monthly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | myCistern IoT | Graf IoT |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks ā better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details ā not scored | ||
| Size | 46 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | myCistern Operations GmbH | Otto Graf GmbH Kunststofferzeugnisse |
In-app purchases
myCistern IoT
No in-app purchases
Graf IoT
No in-app purchases
Questions
Is myCistern IoT free?
Is Graf IoT free?
Do myCistern IoT or Graf IoT have ads?
Which is updated more often, myCistern IoT or Graf IoT?
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