Comparison

NCP Authenticator vs GELSEN

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

Head to head
About

NCP Authenticator

Read full description

NCP Authenticator works with 2-Step Verification for your NCP VPN Access or any other online service using the TOTP method to provide an additional layer of security when signing in. Once configured, 2-step authentication protects your account by requiring both your password and an additional passcode, thus adding an extra layer of security. NCP Authenticator will generate these passcodes for you in a convenient way, directly on your smartphone or tablet, without the need for Internet connection. NCP Authenticator does not only operate with a NCP vpn account, but also with accounts from Google, Dropbox, PayPal and all the other providers who implement authentication in this standardized way. For additional security QR codes generated by NCP’s management can enforce biometric authentication for starting NCP Authenticator. Features • Generates time-based OTP (One Time Password) codes • SHA-1, SHA-256 and SHA-512 hash algorithm supported • Add an account easily by simply scanning a QR code with your device camera, via link in your smartphones browser or by adding it manually • The time-step for time-based passcodes can be 30 or 60 seconds • Generated codes can be 6 to 8 digits wide • No Internet/network connection needed, everything happens offline • Copy any generated code to the clipboard for easy and fast access • High security thanks to optional biometric authentication before starting NCP Authenticator

About

GELSEN

Read full description

Die GELSEN-NET App unterstützt Sie dabei, Fragen und Probleme rund um Ihren Internetanschluss selbst schnell und unkompliziert zu klären. Analysen • Automatische Problemerkennung • Keine Wartezeit • Direkt zur richtigen Anleitung Interaktive Hilfe • Automatische Problemlösungen • Verständliche Erklärungen • Intelligente Rückfragen Kontaktaufnahme • Den Kundenservice über die App kontaktieren • Übermittlung der Analysen zur schnelleren Bearbeitung in der Hotline Einrichtungsassistent • Erkennen des Routers mit Kamerascan • Freischaltung des Festnetz-Anschlusses • Erkennen der WLAN-Daten und automatische Einrichtung der Verbindung Routerkonfiguration • Passen Sie die Einstellungen Ihres Routers schnell und einfach an WLAN teilen • Einrichtung der WLAN-Verbindung für externe Geräte

Screenshots

NCP Authenticator4 screens
GELSEN4 screens

Verdict

The call

The clearest difference is update cadence: GELSEN at every 3 days against NCP Authenticator's every 25 months. NCP Authenticator's advantage is iOS requirement (15.1 vs 17). 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

NCP Authenticator ships an update every 25 months, GELSEN every 3 days. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 4 level
NCP Authenticator versus GELSEN: the parameters behind the verdict, then further details
ParameterNCP AuthenticatorGELSEN
PriceFreeFree
Update frequencyEvery 25 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17
Further details — not scored
Size18 MB181 MB
Age rating4+4+
DeveloperN C P E GmbH Network Communications Products EngineeringConntac GmbH

In-app purchases

None

NCP Authenticator

No in-app purchases

None

GELSEN

No in-app purchases

Questions

Is NCP Authenticator free?
NCP Authenticator is free to download, with no in-app purchases.
Is GELSEN free?
GELSEN is free to download, with no in-app purchases.
Do NCP Authenticator or GELSEN have ads?
Neither NCP Authenticator nor GELSEN shows ads.
Which is updated more often, NCP Authenticator or GELSEN?
NCP Authenticator ships an update every 25 months, and GELSEN every 3 days. Most recently, NCP Authenticator was updated on September 10, 2026 and GELSEN on September 9, 2026.

Other comparisons