Comparison

Space Weather Forecast vs WatchBarometer

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

Head to head
About

Space Weather Forecast

Features
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Space Weather Forecast lets you easily monitor current space weather conditions affecting Earth. This app combines key indicators of solar activity into one simple dashboard so you can quickly understand the current space environment. FEATURES • Today's Space Weather See an easy-to-understand summary of current space weather conditions with a simple ranking system. • Tomorrow's Forecast Get a quick prediction of expected space weather activity for the next day. • Solar Flare Monitor Track the latest solar X-ray flux measurements and flare classifications. • Solar Wind Monitor View real-time solar wind speed, density, and temperature measurements. • Geomagnetic Kp Index Monitor geomagnetic storm activity with the global Kp index. • Space Weather Impact Understand how solar activity may affect GPS accuracy, radio communication, and aurora visibility. DATA SOURCES Space weather data is provided by international space weather monitoring services. Perfect for: • Space enthusiasts • Aurora watchers • Amateur radio operators • Satellite observers • Anyone curious about solar activity Stay aware of the Sun’s activity and its impact on Earth.

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/

Screenshots

Space Weather Forecast4 screens
WatchBarometer4 screens

Verdict

The call

The clearest difference is in-app purchases: Space Weather Forecast at none against WatchBarometer's 1. WatchBarometer's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Space Weather Forecast asks for nothing beyond the download.

UpkeepUpdate frequency

Space Weather Forecast ships an update every 2 months, WatchBarometer every 3 months. Both last shipped on October 25, 2026.

Scorecard2 real differences · 6 level
Space Weather Forecast versus WatchBarometer: the parameters behind the verdict, then further details
ParameterSpace Weather ForecastWatchBarometer
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS26.226.0 — better
Further details — not scored
Size18 MB9 MB
Age rating4+4+
DeveloperToru KawaguchiBernhard Hering

In-app purchases

None

Space Weather Forecast

No in-app purchases

1 purchases

WatchBarometer

Subscriptions1
  • WatchBarometer Jahresabo$3.991 Year

Questions

Is Space Weather Forecast free?
Space Weather Forecast is free to download, with no in-app purchases.
Is WatchBarometer free?
WatchBarometer is free to download, with in-app purchases available.
Do Space Weather Forecast or WatchBarometer have ads?
Space Weather Forecast shows ads; WatchBarometer does not.
Which is updated more often, Space Weather Forecast or WatchBarometer?
Space Weather Forecast ships an update every 2 months, and WatchBarometer every 3 months. Most recently, Space Weather Forecast was updated on October 25, 2026 and WatchBarometer on October 25, 2026.

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