Comparison

WatchBarometer vs SunTrace

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

Head to head
About

WatchBarometer

Features
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WatchBarometer turns air pressure into useful context on iPhone and Apple Watch. Highlights: - current sensor pressure or sea-level-normalized pressure - short-term weather trend from pressure changes - pressure history from six hours to the complete timeline - comparison of raw and altitude-aware sea-level pressure - GPS altitude history with optional barometer refinement - focused measurement sessions - widgets, Live Activity, and Apple Watch complications WatchBarometer uses the device's running barometer stream, GPS altitude for sea-level context, and read-only HealthKit samples only when Apple already includes barometric pressure metadata. Important: - high- and low-pressure classifications use compensated sea-level pressure only - raw sensor pressure is not misleadingly classified across different elevations Built for weather watchers, hikers, and anyone who wants to understand pressure, trend, and altitude instead of seeing just one number. Privacy Policy: https://bernhardhering.de/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SunTrace

Features
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SunTrace visualizes the sun and moon's journey across the sky in a beautiful, minimalist chart — right on your home screen. WHAT YOU GET ◉ Sun & Moon Path Chart Track the sun's arc from sunrise to sunset and the moon's path during nighttime — all on a single 24-hour timeline. See the current position in real-time. ◉ Temperature Chart Hourly temperature curve with cold-to-hot color gradient. Precipitation probability overlay shows when rain is expected. ◉ Golden Hour & Blue Hour Know exactly when the perfect light begins. Color-coded light phase bar shows golden hour, blue hour, and twilight times at a glance. ◉ Home Screen Widgets Three widget sizes (Small, Medium, Chart) show sunrise, sunset, temperature, and a countdown to the next event — without opening the app. ◉ Date Explorer Browse any past or future date to see the sun path, moon phase, and historical weather data powered by Open-Meteo. ◉ Sun Compass Point your phone to see where the sun is right now. The compass overlays the sun's arc with azimuth and altitude — perfect for planning photo shoots. ◉ Share Cards Generate beautiful Instagram-ready cards showing today's sun path, golden hour times, and moon phase. Share your light with the world. PRO FEATURES ($2.99 one-time) • Multiple cities (up to 5) • Smart alerts (golden hour, sunrise, sunset push notifications) • Premium widgets (Medium & Chart) • 4 widget themes (Dark, Light, Sunset, Ocean) • Unlimited date browsing • No ads PERFECT FOR Photographers chasing golden hour Runners & outdoor enthusiasts Anyone who loves tracking daylight Astronomy & moon phase enthusiasts No account required. No subscription.

Screenshots

WatchBarometer4 screens
SunTrace4 screens

Verdict

The call

The clearest difference is ads: WatchBarometer at none against SunTrace's shown. SunTrace's advantage is update cadence (monthly vs every 3 months) and iOS requirement (15.0 vs 26.0). 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. WatchBarometer sells 1 in-app purchase, starting at $3.99 per year and SunTrace sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

WatchBarometer ships an update every 3 months, SunTrace monthly. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 3 level
WatchBarometer versus SunTrace: the parameters behind the verdict, then further details
ParameterWatchBarometerSunTrace
PriceFreeFree
Update frequencyEvery 3 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size9 MB54 MB
Age rating4+4+
DeveloperBernhard Heringmint-soft

In-app purchases

1 purchases

WatchBarometer

Subscriptions1
  • WatchBarometer Jahresabo$3.991 Year
1 purchases

SunTrace

One-time1
  • SunTrace Pro$1.99

Questions

Is WatchBarometer free?
WatchBarometer is free to download, with in-app purchases available.
Is SunTrace free?
SunTrace is free to download, with in-app purchases available.
Do WatchBarometer or SunTrace have ads?
SunTrace shows ads; WatchBarometer does not.
Which is updated more often, WatchBarometer or SunTrace?
WatchBarometer ships an update every 3 months, and SunTrace monthly. Most recently, WatchBarometer was updated on September 10, 2026 and SunTrace on September 17, 2026.

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