Comparison

Sun TimeZone vs Altimeter and Barometer

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

Head to head
About

Sun TimeZone

Features
Read full description

Timezone turns world clocks into something beautiful. Instead of a list of numbers, watch the sun’s path across a 24-hour cycle as a smooth sine wave, with your selected cities plotted directly on the curve. A dynamic sky gradient shifts from starlit night to golden sunrise to bright day, making it instantly clear who’s awake, who’s asleep, and where the sun is. INTERACTIVE TIME DIAL Drag the scrubbing dial to glide through any hour of the day. Subtle haptic ticks mark each hour, while every timezone updates in real time. Perfect for finding that sweet spot where Tokyo, London, and San Francisco overlap. SUN PATH VISUALIZATION A scientifically inspired sine wave maps the sun’s arc over 24 hours. Each city appears as a color-coded marker, so you can immediately see which locations are in daylight and which are in darkness. DYNAMIC SKY & STARS The background is a living sky that transitions from deep midnight blues to warm sunrise tones to bright daytime hues. Softly twinkling stars animate across night regions, adding depth and atmosphere. SMART CITY SEARCH Add timezones by simply searching city names like “New Delhi,” “San Francisco,” or “Tokyo”—no need for IANA identifiers. With 50+ built-in aliases, you can also browse by region or GMT offset. DESIGNED FOR APPLE Crafted with Liquid Glass materials, fluid animations, and a dark-mode-first aesthetic. The layout adapts seamlessly: a compact stacked view on iPhone and a spacious side-by-side layout on iPad. KEY FEATURES - Sun-path sine wave with color-coded timezone markers - Interactive horizontal dial with haptic feedback - Animated day-to-night sky gradient - Twinkling star field in night zones - 8 vibrant accent colors for cities - Searchable picker with 50+ city aliases - Persistent state across launches - Responsive layouts for iPhone and iPad - No ads, no accounts, no tracking Whether you're coordinating across time zones, planning a call with family abroad, or simply curious where the sun is right now—Timezone makes it intuitive, visual, and immediate.

About

Altimeter and Barometer

This app provides a barometer and altimeter to monitor atmospheric pressure and measure altitude. It features a classic analog dial to track weather changes and estimate altitude even without GPS. It supports various units and is designed for simplicity and ease of use.

Highlights
  • Atmospheric pressure monitoring
  • Altitude measurement
  • Classic analog weather dial
  • Altitude estimation without GPS
  • Support for all pressure and altitude units
  • Fast, simple, and easy to use
Read full description

A barometer and altimeter in one elegant app. Monitor atmospheric pressure, measure your altitude, and keep track of changing weather conditions with a classic analog barometer dial. Features: • Automatically calculates the expected atmospheric pressure for your current altitude and weather conditions. • Displays a classic weather dial that shows whether the current pressure is above or below the expected value. • Estimates your altitude from atmospheric pressure when GPS is unavailable. • Supports all popular pressure and altitude units. • Fast, simple, and easy to use. • No ads. No subscriptions. No personal data collection.

Screenshots

Sun TimeZone4 screens
Altimeter and Barometer4 screens

Verdict

The call

Sun TimeZone and Altimeter and Barometer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
Sun TimeZone versus Altimeter and Barometer: the parameters behind the verdict, then further details
ParameterSun TimeZoneAltimeter and Barometer
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 7 months—
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, Mac — betteriPhone
Requires iOS26.2 — better26.5
Further details — not scored
Size6 MB3 MB
Age rating4+4+
DeveloperArshdeep SinghAmax Software Sp. z o.o.

In-app purchases

None

Sun TimeZone

No in-app purchases

None

Altimeter and Barometer

No in-app purchases

Questions

Is Sun TimeZone free?
Sun TimeZone is free to download, with no in-app purchases.
Is Altimeter and Barometer free?
Altimeter and Barometer is free to download, with no in-app purchases.
Do Sun TimeZone or Altimeter and Barometer have ads?
Neither Sun TimeZone nor Altimeter and Barometer shows ads.

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