Comparison

NUSO vs KaseyaOne Authenticator

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

Head to head
About

NUSO

This business communication app offers a cloud-based phone system with contact center features. It allows users to make and receive office calls on their mobile devices, use their business number for outgoing calls, and manage answering rules remotely. Access your office contact list with real-time presence and enjoy features like visual voicemail and call history.

Highlights
  • Mobile office calls
  • Business number caller ID
  • Remote answering rules
  • In-office contact list
  • Visual voicemail
  • Call history
  • Custom greetings
Features
Read full description

NUSO Green UCaaS/CCaaS is a comprehensive, cloud-based phone system with built-in contact center features. Advantages: - Receive office calls on your cell phone: Make your office phone mobile, with the ability to transition calls between phones. - Call clients using your business number: Rather than giving out your personal cell phone number to contacts, call them through the app to have your business number appear on their caller ID. - Set answering rules while you're away: Change your office answering rules anywhere, anytime, without logging in to your browser. - Access to an in-office contact list: See who's available for a call, message, or meeting when you're working remote. Benefits & Features: - Custom greetings with configurable hold music - View all office contacts with real-time presence - Visual Voicemail - Call with your Office Caller ID from your mobile device - Full Call History - Control Answering Rules - Manage Voicemail Greetings - Mobile Integration - Manage Office and Mobile Contacts - Ext dial from mobile device - Perform transfers, conferences, star codes, and more from mobile. - Seamlessly switch call from mobile app to desk phone without callers knowing. - Available contact center module - Chat with co-workers

About

KaseyaOne Authenticator

Streamline your multi-factor authentication with instant push notifications. Securely approve logins with biometrics and a simple tap, saving significant time daily.

Highlights
  • Push-MFA notifications
  • Biometric unlock
  • One-tap approval
  • Fast login process
  • Secure verification
Features
Read full description

KaseyaOne Authenticator streamlines your Multi-Factor Authentication (MFA) experience with Push-MFA, reducing the time spent on the verification step from 30-40 seconds to just 7 seconds and numerous times per day is minutes saved per technician. Once your initial 2FA setup is completed with a third-party authenticator, you can use KaseyaOne Authenticator for fast, secure login approvals. How it works: • Log into KaseyaOne on your desktop • Receive a push notification on your phone • Unlock the app with biometrics and enter the two-digit verification code • Tap "Yes, it's me" to confirm Enjoy quick, hassle-free Push MFA authentication with KaseyaOne Authenticator.

Screenshots

NUSO4 screens
KaseyaOne Authenticator4 screens

Verdict

The call

The clearest difference is rating: KaseyaOne Authenticator at 3.0 against NUSO's 2.7. On price, review sentiment, ratings volume and update cadence 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.

ReceptionRating · Positive reviews · Number of ratings

KaseyaOne Authenticator holds the better App Store score, 3.0 against 2.7. Both are backed by a comparable volume of ratings — 13 and 7 respectively. Written reviews complicate that: 25% of NUSO's written reviews are positive against 20% of KaseyaOne Authenticator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 8, 2026 and June 1, 2026 respectively.

Scorecard1 real difference · 9 level
NUSO versus KaseyaOne Authenticator: the parameters behind the verdict, then further details
ParameterNUSOKaseyaOne Authenticator
PriceFreeFree
Rating2.7 (13 ratings)3.0 (7 ratings) — better
Positive reviews25.0% of reviews — better20.0% of reviews
Number of ratings13 — better7
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.6 — better
Further details — not scored
Size123 MB5 MB
Age rating4+4+
DeveloperBrightlink Communications LLCKaseya International

Customer experience

NUSO

All ratings13 ratings
Positive38.5%
Neutral7.7%
Negative53.8%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

KaseyaOne Authenticator

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

In-app purchases

None

NUSO

No in-app purchases

None

KaseyaOne Authenticator

No in-app purchases

Questions

Is NUSO free?
NUSO is free to download, with no in-app purchases.
Is KaseyaOne Authenticator free?
KaseyaOne Authenticator is free to download, with no in-app purchases.
Which has better reviews, NUSO or KaseyaOne Authenticator?
KaseyaOne Authenticator is rated higher. NUSO averages 2.7 out of 5 from 13 ratings, while KaseyaOne Authenticator averages 3.0 from 7 ratings.
Do NUSO or KaseyaOne Authenticator have ads?
Neither NUSO nor KaseyaOne Authenticator shows ads.
Which is updated more often, NUSO or KaseyaOne Authenticator?
NUSO ships an update every 2 months, and KaseyaOne Authenticator every 2 months. Most recently, NUSO was updated on September 8, 2026 and KaseyaOne Authenticator on June 1, 2026.

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