Comparison

SkyWx vs Sun

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

Head to head
About

SkyWx

Features
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Fly with the whole weather picture in front of you. SkyWx is aviation weather built for how pilots actually brief: one map, every layer that matters, and a route briefing that follows your corridor from takeoff to touchdown. THE MAP • Worldwide radar • Winds aloft — barbs at the level you choose • Icing and turbulence, filtered by flight level • Convective clouds and CB tops • Jet streams and high-level SIGWX • SIGMETs, G-AIRMETs and CWAs • Volcanic ash and tropical cyclones • Aurora and space-weather radiation advisories Scrub forward in time and up and down the flight levels — the hazards move with you. ROUTE BRIEFINGS Enter any city pair and get the corridor, not just the endpoints: • Turbulence, icing and CB along your track • Winds aloft at your cruise level • En-route NOTAMs, drawn on the map • Take-off and destination alternates, filtered to runways you can actually use • METARs and TAFs for every field that matters YOUR FLIGHTS, ALREADY THERE Add a leg by flight number, import a roster from CSV, or subscribe to your crew calendar feed. Your next flight is always one tap from a full briefing — and now you can show your active route right on the weather map. YOUR FLIGHTS, STRAIGHT FROM YOUR CALENDAR SkyWx reads your calendar and finds the flights in it. It spots a flight number in an event — "BA295" in the title, the notes, or the location — and resolves it to a real origin and destination, so a roster entry becomes a briefable route without you typing a thing. No flight number in there? It falls back to airport codes instead ("ESSA → EGLL"). Flying a published roster? Paste your crew calendar link once — webcal or .ics, an iCloud published calendar or an airline feed — and your flights land in Routes. That path needs no calendar permission at all. Rosters change. SkyWx keeps up: when a flight is cancelled or moved off your roster, it drops out of Routes too. Your next flight is always one tap from a full briefing — and you can show the active route right on the weather map. NO ACCOUNT. EVER. No sign-up, no password, no email address. Install and brief. FREE • Airport watchlist with live METAR and TAF SKYWX AVIATOR — $0.99/month, first 3 months free • Every weather map layer • Full route briefings, end to end Situational awareness only. SkyWx is not a navigation system and is not a substitute for an official pre-flight briefing or the aircraft's own systems. Always cross-check. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sun

Features
Read full description

Sun-Dog is a clean, focused weather app built on open data. Hourly trends for temperature, rain, sunshine and wind, a combined 14-day overview and all the important details show you the sky at a glance. Weather Windows find suitable times for walks, exercise, barbecues, beach trips, stargazing and more. Smart highlights call out important weather changes and significant rain or wind peaks. A sundog – also called a parhelion – is a real atmospheric phenomenon. When conditions are right, Sun-Dog quietly reminds you to look up. • Hourly charts for temperature, rain, sunshine and wind • Combined 14-day forecast with detailed hourly values • Weather Windows for activities and special times of day • Current conditions including feels-like, wind, humidity, pressure, UV and cloud cover • Rain radar and severe-weather alerts • Favorite places, widgets and Apple Watch complications • For iPhone, iPad, Mac and Apple Watch, in light and dark mode • Powered by Open-Meteo – free, open weather data. No account, no tracking.

Screenshots

SkyWx4 screens
Sun4 screens

Verdict

The call

The clearest difference is device support: Sun at 4 against SkyWx's 2. On price, update cadence, ads and in-app purchases 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. SkyWx sells 1 in-app purchase, starting at $0.99 per month and Sun sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SkyWx ships an update monthly, Sun every 2 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
SkyWx versus Sun: the parameters behind the verdict, then further details
ParameterSkyWxSun
PriceFreeFree
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Mac, Apple Watch — better
Requires iOS26.526.0 — better
Further details — not scored
Size34 MB21 MB
Age rating4+4+
DeveloperThrottle ABMichael Lauer

In-app purchases

1 purchases

SkyWx

Subscriptions1
  • SkyWx Aviator3 Months trial$0.991 Month
3 purchases

Sun

One-time3
  • Small Tip$1.99
  • Medium Tip$3.99
  • Large Tip$6.99

Questions

Is SkyWx free?
SkyWx is free to download, with in-app purchases available.
Is Sun free?
Sun is free to download, with in-app purchases available.
Do SkyWx or Sun have ads?
Neither SkyWx nor Sun shows ads.
Which is updated more often, SkyWx or Sun?
SkyWx ships an update monthly, and Sun every 2 weeks. Most recently, SkyWx was updated on October 25, 2026 and Sun on October 31, 2026.

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