Comparison

Onetime. vs ViSo

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

Head to head
About

Onetime.

Visualize multiple world time zones on a single, intuitive dial. This app simplifies international scheduling and communication by displaying cities as they move through day and night, automatically handling daylight saving changes. Effortlessly find the perfect time for calls or to connect with loved ones globally.

Highlights
  • Single, easy-to-read time zone dial
  • Visualizes cities moving through day and night
  • Automatic daylight saving time adjustments
  • Timetravel™ feature for scheduling
  • Shareable time invites
Features
Read full description

One world. Onetime. Finally, a world clock that integrates all time zones into one easy-to-read dial. We are all living and working globally more and more, so we needed a way to simply see the time in cities around the world at a glance. That’s how Onetime was born. Built on the metaphor of the earth’s rotation, Onetime displays all the cities that matter to you as they move through the day and night in a natural, clockwise direction referencing the international date line. Whether you are scheduling an international call or checking to see what time it is back home, Onetime is the clock for you. No more mistakes adding and subtracting hours, no more confusing GMT numbers, no more remembering daylight savings calendars. Onetime takes care of it all, automatically. And with Timetravel™, you can fly through time so that you quickly find the right moment to schedule that important teleconference with your international colleagues or catch your loved ones before their bedtimes. The „Share“ feature lets you choose a date with TimeTravel and send an invite via message or email. Give up your wall of newsroom clocks and switch to Onetime today. Onetime. By FLUID. ABOUT FLUID Onetime was created by the award-winning design firm FLUID. With our locations in Munich and Silicon Valley and our international client base, the FLUID team is a heavy Onetime user, too.

About

ViSo

Features
Read full description

Die App zur ViSo Software. Gib den aktuellen Zählerstand von Hand ein, oder mache ein Foto, um ihn automatisch erkennen zu lassen.

Screenshots

Onetime.4 screens
ViSo4 screens

Verdict

The call

The clearest difference is update cadence: ViSo at every 5 weeks against Onetime.'s every 11 months. ViSo also leads on iOS requirement (11.0 vs 13.0). 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

Onetime. ships an update every 11 months, ViSo every 5 weeks. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
Onetime. versus ViSo: the parameters behind the verdict, then further details
ParameterOnetime.ViSo
PriceFreeFree
Rating3.5 (39 ratings) — better—
Positive reviews51.5% of reviews—
Number of ratings39 — better—
Update frequencyEvery 11 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.011.0 — better
Further details — not scored
Size2 MB28 MB
Age rating4+4+
DeveloperFLUID Design GmbHSD Software-Design GmbH

Bugs and requests

Onetime.

Reported bugs

8 issues
  • Incorrect time zone data for some cities (e.g., Taipei, São Paulo)
  • App freezes when trying to add cities
  • City search function not working ('No cities found')
  • App crashes on launch after updates
  • Time travel feature stops working with certain cities
Show 3 more
  • Scrolling back and forth in time no longer possible
  • App not working with latest iOS versions
  • Default 'My Time' zone cannot be removed

Requested features

9 requests
  • Ability to add descriptive labels for cities
  • Ability to add GMT/UTC time
  • Ability to add time zones manually
  • Homescreen widgets
  • Ability to toggle cities instead of removing
Show 4 more
  • iPad version
  • Tutorial on first launch
  • Option to reverse view horizontally
  • Ability to search future dates

ViSo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Onetime.

No in-app purchases

None

ViSo

No in-app purchases

Questions

Is Onetime. free?
Onetime. is free to download, with no in-app purchases.
Is ViSo free?
ViSo is free to download, with no in-app purchases.
Do Onetime. or ViSo have ads?
Neither Onetime. nor ViSo shows ads.
Which is updated more often, Onetime. or ViSo?
Onetime. ships an update every 11 months, and ViSo every 5 weeks. Most recently, Onetime. was updated on September 30, 2026 and ViSo on October 9, 2026.

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