Comparison

WARP by Tinkerforge 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

WARP by Tinkerforge

Features
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This app allows remote access via my.warp-charger.com to all versions of the WARP Charger and all versions of the WARP Energy Manager. Each time a connection is made via remote access, a dedicated encrypted VPN is established. This VPN has only two participants: The device through which you open the remote access and your WARP Charger or WARP Energy Manager. This ensures that only you can retrieve data from your device.

About

Graf IoT

Features
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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

WARP by Tinkerforge4 screens
Graf IoT4 screens

Verdict

The call

The clearest difference is update cadence: Graf IoT at monthly against WARP by Tinkerforge's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

WARP by Tinkerforge ships an update every 9 months, Graf IoT monthly. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

Scorecard1 real difference Ā· 5 level
WARP by Tinkerforge versus Graf IoT: the parameters behind the verdict, then further details
ParameterWARP by TinkerforgeGraf IoT
PriceFreeFree
Update frequencyEvery 9 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size4 MB47 MB
Age rating4+4+
DeveloperTinkerforgeOtto Graf GmbH Kunststofferzeugnisse

In-app purchases

None

WARP by Tinkerforge

No in-app purchases

None

Graf IoT

No in-app purchases

Questions

Is WARP by Tinkerforge free?
WARP by Tinkerforge 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 WARP by Tinkerforge or Graf IoT have ads?
Neither WARP by Tinkerforge nor Graf IoT shows ads.
Which is updated more often, WARP by Tinkerforge or Graf IoT?
WARP by Tinkerforge ships an update every 9 months, and Graf IoT monthly. Most recently, WARP by Tinkerforge was updated on October 10, 2026 and Graf IoT on October 9, 2026.

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