Zoll vs Proton Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zoll
This app provides a secure and user-friendly way to log into the Customs Portal and its services. It allows for quick authentication using biometric data after an initial setup with an existing online identity.
- Secure login to Customs Portal
- Biometric authentication (Face-ID/Touch-ID)
- QR code scanning for login
- Setup with ELSTER, BundID, or Online ID
- Individual user codes for businesses
- Accelerated access to services
Read full descriptionHide full description
Zoll-Ident App – the secure authenticator for a simple login to the Customs Portal Digital security continues to be one of our top priorities. At the same time, it is in line with the user-centric design of our service. The new Zoll-Ident App combines both aspects and accelerates your access to the Customs Portal and all included services. How does the Zoll-Ident App work? 1. You can now generate a QR code on the homepage of our website to log into the Customs Portal. 2. To be able to use Zoll-Ident for an unrestricted login, you need to first identify yourself with an ELSTER account, BundID or your Online ID. You can then set up the Zoll-Ident App as an alternative option. 3. Install the App and add the Zoll-Ident App option in the “Login Options” page of your account in the Customs Portal. At this stage, scan the code displayed in the portal and follow the steps shown in the App. 4. After successfully setting up the option you will be able to scan the login code on the home screen of the App and use Face-ID or Touch-ID to easily log into the Portal. Additional function for business customers: Your company requires only one main user to have an ELSTER account for the Customs Portal. You can now generate individual user codes for your company and make them available by email to specific employees. Users can use all functions of the Portal without ELSTER through their personal Zoll-Ident access. Do you have questions or comments? If so, feel free to contact us at: servicedesk@zoll.de
Proton Authenticator
Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.
- End-to-end encrypted iCloud sync
- Effortless import from other authenticators
- Secure backup and export
- Swiss privacy by design
- Open source and transparent
- Offline support
Read full descriptionHide full description
Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds. Secure Backup & Export: Retain full control of your data with easy backup and restore options. Swiss Privacy by Design: Built under Switzerland's strongest data protection regulations. Open Source & Transparent: Auditable code. No tracking. No ads. Take control of your digital security with encryption you can trust. Free to use: No Proton account required, ad-free. Offline support: On mobile and desktop apps No other 2FA app provides this combination of security and privacy. Trusted by millions. Built by Proton. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me
Screenshots
Verdict
The clearest difference is review sentiment: Proton Authenticator at 56% against Zoll's 11%. Proton Authenticator also leads on rating (4.4 vs 1.0) and update cadence (weekly vs every 2 months). Zoll's advantage is iOS requirement (15.5 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Proton Authenticator holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Proton Authenticator has 242 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 11% of Zoll's written reviews are positive against 56% of Proton Authenticator's.
Zoll ships an update every 2 months, Proton Authenticator weekly. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.
| Parameter | Zoll | Proton Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.4 (242 ratings) — better |
| Positive reviews | 10.5% of reviews | 55.9% of reviews — better |
| Number of ratings | 2 | 242 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 15.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 57 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Generalzolldirektion | Proton AG |
Customer experience
Zoll
Proton Authenticator
Bugs and requests
Zoll
Not enough reviews yet to summarise bugs or requests.
Proton Authenticator
Reported bugs
4 issues- Sync/login loop on iPad
- 2FA input broken on non-iPhone devices
- Screen strobing on iPad
- Duplicate entries after import
Requested features
5 requests- PIN unlock for desktop
- Alphabetical sorting option
- Export function (not just Proton-specific backup)
- Native macOS app
- Option to hide item icons
In-app purchases
Zoll
No in-app purchases
Proton Authenticator
No in-app purchases
Questions
Is Zoll free?
Is Proton Authenticator free?
Which has better reviews, Zoll or Proton Authenticator?
Do Zoll or Proton Authenticator have ads?
Which is updated more often, Zoll or Proton Authenticator?
Other comparisons















