Comparison

World Clock vs Accelerometer

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

Head to head
About

World Clock

Easily track time across multiple cities with visual gradients and an intuitive converter. Organize contacts by time zone, calculate dates, and utilize customizable widgets. Works offline for core functionality.

Highlights
  • Instant time conversion with visual slider
  • Hourly timeline grid with overlapping work times
  • Organize contacts into groups by time zone
  • Date and duration calculator
  • Customizable widgets for home screen
  • Offline functionality for core features
Features
Read full description

Every time zone. One glance. One tap to convert. World Clock: Timezone Converter is the fastest way to track time across the globe. Whether you're scheduling meetings with a distributed team, calling family overseas, or planning your next trip - see every city's local time at a glance with beautiful color gradients that shift from day to night. INSTANT TIME CONVERSION Tap any city to open the converter. Slide the time and watch every clock on your screen update simultaneously - colors shift from sunrise to sunset as you scrub through the hours. No other app makes time conversion this visual and intuitive. TIMELINE GRID Switch to the Timeline tab for a powerful hourly grid view. See all your cities side by side with color-coded cells - golden hours highlight overlapping work times so you can find the perfect meeting slot in seconds. PEOPLE & GROUPS Assign contacts to time zones and organize them into groups - Team, Family, Clients. See at a glance who's awake, who's in their workday, and who you shouldn't call right now. Add up to 3 people free. DATE CALCULATOR Need to know the date 90 business days from now? Or how many days between two dates? The built-in calculator handles date math, business day calculations, and duration computations. WIDGETS Analog clocks, digital grids, solar arcs, world maps, timeline views, people status, gradient cards, heat maps - plus Lock Screen and Liquid Glass styles for iOS 26. Your Home Screen, your way. WORKS COMPLETELY OFFLINE All core features - clocks, converter, timeline, sunrise/sunset calculations - work without an internet connection. Your data stays on your device. FREE FEATURES Track up to 4 cities with live time-of-day gradients Full time converter with hour slider Timeline grid with color-coded golden hours Share conversion cards (with watermark) Date calculator with duration and business day math Up to 3 people with timezone tracking Dark mode, 12h/24h formats DST awareness with advance warnings VoiceOver and Dynamic Type support PRO SUBSCRIPTION (unlocks with monthly, annual, or lifetime purchase): Unlimited cities and people Calendar Quick-Add with title, notes, and duration All widget styles including Lock Screen Smart Share to Slack, Teams, and Google Calendar .ics calendar invite export Share cards without watermark Custom themes, app icons, and emoji Weather and moon/solar data at each location Live seconds display Timeline range selection and overlap finder Meeting cost analysis Smart notifications AI Time Assistant Custom work hours per person Terms of Service: https://worldtimezones.app/terms Privacy Policy: https://worldtimezones.app/privacy

About

Accelerometer

Features
Read full description

Accelerometer turns your phone into a precision motion meter. See exactly how your device moves on every axis, in real time, with smooth live charts and instant RMS readings. KEY FEATURES • Live X, Y, Z axis tracking — watch acceleration update in real time as your device moves • Vector magnitude view — switch from per-axis charts to combined magnitude display in one tap • Last & Peak RMS readouts — never miss the maximum value during a session • Configurable units — read values in g or m/s² to match your workflow • Save sessions — capture any measurement and keep it in your History for later • History detail view — re-open any saved session with full chart snapshot and numeric breakdown • Search & rename — find past sessions fast and label them however you want • Share & export — send measurements as image, plain text, or .txt file to anyone • Multi-select — share or delete several past sessions at once • Clean, dark-themed interface — easy to read in workshops, labs, or in the field WHO IT'S FOR • Engineers and technicians measuring machine vibration on the go • Carpenters, woodworkers, and DIYers checking tool balance • Drivers logging ride quality or suspension behavior • Students and educators demonstrating physics concepts • Curious tinkerers who want to see what their phone is actually feeling PRIVACY FIRST All measurements stay on your device. Nothing is uploaded, nothing is tracked beyond what's needed to keep the app working. You stay in control. — Accelerometer app is free. You can use it forever, at no cost. However, Accelerometer does offer premium features for its subscribers. If you decide to purchase an upgrade, you will unlock additional features. Terms of Use: https://kociapp.github.io/Accelerometer/term-of-use Privacy Policy: https://kociapp.github.io/Accelerometer/privacy-policy

Screenshots

World Clock4 screens
Accelerometer4 screens

Verdict

The call

The clearest difference is ads: World Clock at none against Accelerometer's shown. Accelerometer's advantage is iOS requirement (16.0 vs 18.0). On price, 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. World Clock sells 3 in-app purchases, starting at $4.99 per month and Accelerometer sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
World Clock versus Accelerometer: the parameters behind the verdict, then further details
ParameterWorld ClockAccelerometer
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 3 weeks—
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.0 — better
Further details — not scored
Size32 MB12 MB
Age rating4+4+
DeveloperApphazeAndy Sutanto

In-app purchases

3 purchases

World Clock

Subscriptions2
  • World Clock Pro Monthly$4.991 Month
  • World Clock Pro Yearly$19.991 Year
One-time1
  • World Clock Pro Lifetime Access$29.99
4 purchases

Accelerometer

Subscriptions3
  • 1W$3.997 Days
  • 1M$7.991 Month
  • 1Y3 Days trial$29.991 Year
One-time1
  • Pro$49.99

Questions

Is World Clock free?
World Clock is free to download, with in-app purchases available.
Is Accelerometer free?
Accelerometer is free to download, with in-app purchases available.
Do World Clock or Accelerometer have ads?
Accelerometer shows ads; World Clock does not.

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