Comparison

buhl vs i

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

Head to head
About

buhl

This app generates security codes (tokens) for two-factor authentication (2FA). It adds an extra layer of security to your accounts, ensuring only you can access your data even if your password is compromised. It supports the TOTP method for various services.

Highlights
  • Two-factor authentication (2FA)
  • Automatic security code generation
  • Enhanced account security
  • Supports TOTP method
  • Protects buhl:Konto and other services
Features
Read full description

Die Zwei-Faktor-Authentifizierung (2FA) schenkt Ihren Kunden-Konto ein Extra an Sicherheit. Wenn Sie diese Funktion aktivieren, werden Sie in Zukunft zusätzlich zu Ihrem Passwort noch einen Sicherheitscode (Token) eingeben. Dieser Sicherheitscode wird von Ihrer buhl:Authenticator App automatisch für Sie generiert, wenn Sie die App starten. Damit wird sichergestellt, dass nur Sie auf Ihre Daten zugreifen können, auch wenn eine andere Person Ihr Passwort kennt. Der buhl:Authenticator schützt auf Wunsch Ihr buhl:Konto und alle anderen Services, Webseiten oder Apps, die das TOTP-Verfahren unterstützen.

About

i

Manage your vehicle registration documents digitally and securely. View, update, and share your registration certificate from your device, reducing paperwork and providing easy access to important vehicle data.

Highlights
  • Digital vehicle registration document (DFZ)
  • Add DFZ via eID or QR code
  • Automatic updates and inspection reminders
  • Share registration documents securely
  • View vehicle data offline
  • Delete DFZ and shared versions
Read full description

The digital vehicle registration document (DFZ) is a digital version of the vehicle registration certificate that can be used in the i-Kfz app on your device. With the i-Kfz app, vehicle owners can view, update and, if necessary, share their vehicle registration document (Zulassungsbescheinigung Teil I (ZB I)) anytime, anywhere. This facilitates access to important vehicle data and reduces the amount of paperwork required. The app also offers a secure and user-friendly way to manage vehicle registration certificates digitally. App functions: ADD: Vehicle owners can have a DFZ issued either using the eID function or by scanning a QR code in the app. There are several options for obtaining a QR code: QR codes are provided both on site, during the registration process or on request, as well as when registering online. UPDATE: The validity and current status of the digital vehicle registration document are automatically checked when the app is opened. The i-Kfz app also offers automatic updates, such as reminders of upcoming periodic technical inspections. SHARE: With just a few clicks, the vehicle owner can generate any number of shared versions of a DFZ and share them with third parties via link or QR code for permanent or temporary use. VIEW: With the help of a user-friendly display, you can view your vehicle and owner data at any time, even without an internet connection, and present it during a traffic check or periodic technical inspections, for example. DELETE: You can delete the DFZ and its shared versions in the app yourself. The i-Kfz app is constantly being developed. We welcome feedback in the store or in the app. If you have any questions or suggestions, our support team will be happy to assist you: i-Kfz@support.bdr.de Privacy policy: http://www.kba.de/app-dse_en Accessibility statement: http://www.kba.de/app-bfe-ios_en End User Licence Agreement (EULA): http://www.kba.de/app-eula_en

Screenshots

buhl4 screens
i4 screens

Verdict

The call

The clearest difference is review sentiment: i at 100% against buhl's 42%. i also leads on update cadence (every 4 months vs every 81 months). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

buhl ships an update every 81 months, i every 4 months. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
buhl versus i: the parameters behind the verdict, then further details
Parameterbuhli
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews42.1% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 81 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better17.0
Further details — not scored
Size3 MB67 MB
Age rating4+4+
DeveloperBuhl Data Service GmbHKraftfahrt-Bundesamt

Customer experience

buhl

Written reviews19 reviews
Positive42.1%
Neutral10.5%
Negative47.4%

i

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews22 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

buhl

No in-app purchases

None

i

No in-app purchases

Questions

Is buhl free?
buhl is free to download, with no in-app purchases.
Is i free?
i is free to download, with no in-app purchases.
Do buhl or i have ads?
Neither buhl nor i shows ads.
Which is updated more often, buhl or i?
buhl ships an update every 81 months, and i every 4 months. Most recently, buhl was updated on October 9, 2026 and i on October 16, 2026.

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