Comparison

Zoll vs OY Wings

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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

About

OY Wings

Features
Read full description

Your flight school's OY Wings, built for iPhone, iPad, Apple Watch and Apple TV. OY Wings Companion is the official app for schools and clubs that run on OY Wings from Oscar Yankee. Students, instructors, renters and operations staff get the day's flying at a glance, and can keep working when the connection drops. TODAY • Your next booking, lessons in progress and anything that needs your attention • Currency at a glance: landings, documents and expiry dates • Live Activities and widgets keep the current lesson on your Lock Screen SCHEDULE • Day, week and month calendars, plus a timeline by aircraft or instructor • Create and edit bookings; drag a booking on the timeline to move it • Pre-flight brief with weather, aircraft status and the lesson plan LESSONS • Grade objectives 1–5, or score a whole exercise at once • Register flights, add comments and complete the lesson on the spot • Student report cards and a PDF lesson report to share FLYING • Digital logbook with totals and statistics • Map with airspace and live traffic • METAR, TAF and sunrise and sunset for your home field OPERATIONS • Fleet status, maintenance and defects • People, documents and notifications • Changes made offline are kept and sent as soon as you're back online APPLE WATCH • Today's bookings and the current lesson on your wrist APPLE TV • A lobby display for your school: departures, fleet, roster, map, weather and more, signed in by scanning a QR code Requires an OY Wings account provided by your flight school.

Screenshots

Zoll4 screens
OY Wings4 screens

Verdict

The call

The clearest difference is update cadence: Zoll at every 2 months against OY Wings's every 9 months. Zoll also leads on iOS requirement (15.5 vs 18.0). On price, ads, in-app purchases and device support 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

Zoll ships an update every 2 months, OY Wings every 9 months. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Zoll versus OY Wings: the parameters behind the verdict, then further details
ParameterZollOY Wings
PriceFreeFree
Rating1.0 (2 ratings) — better—
Positive reviews10.5% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.5 — better18.0
Further details — not scored
Size57 MB12 MB
Age rating4+12+
DeveloperGeneralzolldirektionOscar Yankee ApS

In-app purchases

None

Zoll

No in-app purchases

None

OY Wings

No in-app purchases

Questions

Is Zoll free?
Zoll is free to download, with no in-app purchases.
Is OY Wings free?
OY Wings is free to download, with no in-app purchases.
Do Zoll or OY Wings have ads?
Neither Zoll nor OY Wings shows ads.
Which is updated more often, Zoll or OY Wings?
Zoll ships an update every 2 months, and OY Wings every 9 months. Most recently, Zoll was updated on November 12, 2026 and OY Wings on October 30, 2026.

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