Comparison

Know Time Zones vs FlutterTime Timezone Converter

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

Head to head
About

Know Time Zones

Features
Read full description

Converting time zones is probably more fun using this app.

About

FlutterTime Timezone Converter

Effortlessly manage global time zones with a visual timeline. This app simplifies scheduling for remote teams and travelers by showing time differences and availability at a glance. It offers precise time zone support and customizable labels without ads or tracking.

Highlights
  • Visual timeline for time zone alignment
  • At-a-glance status indicators
  • Support for unlimited locations
  • UTC, GMT, and Military (Zulu) time
  • Customizable clock labels
  • Dark Mode and Liquid Glass design
Features
Read full description

Scheduling calls across timezones is frustrating. It's especially difficult if you are traveling or working with someone remote. Having family across timezones compounds the issue. FlutterTime allows you to add your cities, then move forward and back in time across timezones using an intuitive timeline. It's simple clean, and tackles one problem without extra bloat. No more Googling "PST to London time" or second-guessing meeting starts. Just a smooth, elegant interface that stays out of your way. DESIGNED FOR CLARITY • Gliding Timeline: Scroll forward or backward to instantly see how hours align across multiple cities. • At-A-Glance Status: Visual indicators show you who is sleeping, who is working, and where the "sweet spot" for a meeting lies. • True Minimalism: No ads, no tracking, no clutter, and no unnecessary permissions. Just the time you need, exactly when you need it. POWERFUL UTILITY • Unlimited Locations: Track as many cities as you need—from New York to Tokyo. • Technical Precision: Includes support for UTC, GMT, and Military (Zulu) time for pilots and developers. • Custom Labels: Rename your clocks. Tag a location as "Home," "HQ," or "Dev Team." • Beautiful Aesthetics: Fully optimized for Dark Mode with a Liquid Glass design that feels native to your iPhone. PERFECT FOR • Remote Teams: Find the perfect overlap for Zoom or Slack calls without the back-and-forth. • Digital Nomads: Plan your next flight or travel itinerary with confidence. • Finance & Trading: Keep track of market opening hours across London, New York, and Hong Kong. • Aviation: Quick access to UTC/Zulu time for flight planning. Download FlutterTime today and master your world clock.

Screenshots

Know Time Zones3 screens
FlutterTime Timezone Converter4 screens

Verdict

The call

The clearest difference is device support: FlutterTime Timezone Converter at 4 against Know Time Zones's 2. Know Time Zones's advantage is iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases 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.

Scorecard2 real differences · 8 level
Know Time Zones versus FlutterTime Timezone Converter: the parameters behind the verdict, then further details
ParameterKnow Time ZonesFlutterTime Timezone Converter
PriceFreeFree
Rating—4.9 (21 ratings) — better
Positive reviews—88.9% of reviews
Number of ratings—21 — better
Update frequency—Fortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.0 — better18.0
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperRobert LiDBElement, LLC

In-app purchases

None

Know Time Zones

No in-app purchases

None

FlutterTime Timezone Converter

No in-app purchases

Questions

Is Know Time Zones free?
Know Time Zones is free to download, with no in-app purchases.
Is FlutterTime Timezone Converter free?
FlutterTime Timezone Converter is free to download, with no in-app purchases.
Do Know Time Zones or FlutterTime Timezone Converter have ads?
Neither Know Time Zones nor FlutterTime Timezone Converter shows ads.

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