Comparison

myCistern IoT vs Graf IoT

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

myCistern IoT

Features
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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 — 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.

About

Graf IoT

Features
Read full description

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

myCistern IoT4 screens
Graf IoT4 screens

Verdict

The call

myCistern IoT and Graf IoT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

ScorecardNo meaningful differences
myCistern IoT versus Graf IoT: the parameters behind the verdict, then further details
ParametermyCistern IoTGraf IoT
PriceFreeFree
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS16.016.0
Further details — not scored
Size46 MB47 MB
Age rating4+4+
DevelopermyCistern Operations GmbHOtto Graf GmbH Kunststofferzeugnisse

In-app purchases

None

myCistern IoT

No in-app purchases

None

Graf IoT

No in-app purchases

Questions

Is myCistern IoT free?
myCistern IoT is free to download, with no in-app purchases.
Is Graf IoT free?
Graf IoT is free to download, with no in-app purchases.
Do myCistern IoT or Graf IoT have ads?
Neither myCistern IoT nor Graf IoT shows ads.
Which is updated more often, myCistern IoT or Graf IoT?
myCistern IoT ships an update every 3 weeks, and Graf IoT monthly. Most recently, myCistern IoT was updated on October 7, 2026 and Graf IoT on October 9, 2026.

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