Comparison

Appgate RBA Authenticator vs Zulu Time

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

Head to head
About

Appgate RBA Authenticator

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Turn your mobile phone into an instant, one-tap authentication device with the RBA Authenticator. RBA Authenticator works exclusively with Appgate’s Multi-Factor Authentication platform to help protect your online accounts and transactions. RBA Authenticator offers a wide range of modern authentication factors, including push notifications and software-delivered one-time passwords. See below for a full list: Features: - Push Authentication. - Push Alerts. - Fingerprint detection on capable devices. - Multiple account registration. - QR code authentication. - OATH time-based one-time password (TOTP). - Secure PIN protection. - Two-factor authentication for enterprise SaaS applications with the DetectID CloudID platform. - Simple, secure, and encrypted activation process.

About

Zulu Time

Features
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Zulu Time brings Zulu (UTC), local time, world-clock planning, UTC alarms, and original instrument-inspired displays together in one focused app. AT A GLANCE β€’ View live Zulu and selected local time side by side. β€’ Configure Zulu and local time independently: 24-hour, 12-hour, or military format, optional seconds, and separate date styles. β€’ Detect your current time zone automatically and refresh it as needed, or manually choose from 111 countries/regions and 126 cities and aviation hubs. PLAN THE SAME MOMENT WORLDWIDE β€’ Select an exact UTC date and time up to seven days ahead or behind. β€’ Move by 15 minutes, one hour, or one day. β€’ Compare the same moment across saved world clocks with UTC offsets, DST status, and day-boundary indicators. β€’ Read ISO 8601, aviation DDHHMMZ, and YYDDD ordinal codes. ZULU ALARMS β€’ Schedule alerts directly in UTC and review the local-time conversion before saving. β€’ Create one-time, daily, or weekly alarms. β€’ Choose sound on or off and snooze for 10 minutes. ORIGINAL THEMES β€’ Choose from 17 brand-neutral designs: six modern aviation displays, seven premium analog dials, and four minimal themes. β€’ Supported aviation themes can use the on-device compass for live heading; heading scales in other themes are decorative. β€’ Premium dials display both Zulu and local time without covering the dial. IPHONE, IPAD & APPLE WATCH β€’ Configurable Home Screen, Lock Screen, and StandBy widgets. β€’ A full Apple Watch app with all 17 themes. β€’ Zulu/local and Zulu/date complications. β€’ Sync the selected place, time zone, theme family, and verified subscription status from iPhone. PRIVATE BY DESIGN β€’ No ads. β€’ No Zulu Time account. β€’ No cross-app tracking. Zulu Time requires an auto-renewing monthly subscription. Eligible new subscribers can receive a 7-day free trial. The localized price and renewal terms are shown before confirmation, and the subscription can be managed or canceled in Apple Account settings. The aviation displays are visual clock themes only. They are not calibrated or certified flight instruments and must not be used for navigation. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Appgate RBA Authenticator4 screens
Zulu Time4 screens

Verdict

The call

The clearest difference is in-app purchases: Appgate RBA Authenticator at none against Zulu Time's 1. Appgate RBA Authenticator also leads on iOS requirement (11.0 vs 17.0). Zulu Time's advantage is update cadence (every 4 days vs every 14 months). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Zulu Time sells 1 in-app purchase, starting at $1.99 per month. Appgate RBA Authenticator asks for nothing beyond the download.

UpkeepUpdate frequency

Appgate RBA Authenticator ships an update every 14 months, Zulu Time every 4 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard3 real differences Β· 3 level
Appgate RBA Authenticator versus Zulu Time: the parameters behind the verdict, then further details
ParameterAppgate RBA AuthenticatorZulu Time
PriceFreeFree
Update frequencyEvery 14 monthsEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS11.0 β€” better17.0
Further details β€” not scored
Size16 MB15 MB
Age rating4+4+
DeveloperAppgate Cybersecurity, Inc.Yigit Can Akinci

In-app purchases

None

Appgate RBA Authenticator

No in-app purchases

1 purchases

Zulu Time

Subscriptions1
  • Zulu Time Pro7 Days trial$1.991 Month

Questions

Is Appgate RBA Authenticator free?
Appgate RBA Authenticator is free to download, with no in-app purchases.
Is Zulu Time free?
Zulu Time is free to download, with in-app purchases available.
Do Appgate RBA Authenticator or Zulu Time have ads?
Neither Appgate RBA Authenticator nor Zulu Time shows ads.
Which is updated more often, Appgate RBA Authenticator or Zulu Time?
Appgate RBA Authenticator ships an update every 14 months, and Zulu Time every 4 days. Most recently, Appgate RBA Authenticator was updated on November 7, 2026 and Zulu Time on October 31, 2026.

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