Comparison

CelsiUSA vs DaySky Forecast

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

Head to head
About

CelsiUSA

Features
Read full description

CelsiUSA is our app to help you switch to Celsius the easy way. Most of the world uses Celsius, but the US still uses Fahrenheit. Change is hard, but also good and it's time for us to change Celsius to the standard. Privacy: https://doorhingeparkour.com/privacypolicy.html EULA: https://doorhingeparkour.com/eula.html

About

DaySky Forecast

Features
Read full description

Know what matters in today's weather. Check the next 24 hours and the 10-day forecast. See official alerts and find favorable times to go out. A CLEAR SUMMARY The automatic summary highlights changes that may affect your plans: when rain may arrive, notable heat or cold, wind and gusts, fog, high UV, or an evening cooldown. When nothing stands out, it says the day looks calm. HOURLY AND 10-DAY FORECASTS Check current conditions, the next 24 hours, and the 10-day forecast. Sunrise and sunset appear between the forecast hours when they occur. PLAN TIME OUTSIDE Choose a day with enough hourly forecast data and a duration of 30, 60, or 120 minutes. See up to three periods that fit your temperature, precipitation-probability, and wind preferences. Daylight and official weather alerts are considered, and high UV is flagged. If no period qualifies, the app explains the main reason. These are weather comparisons, not safety guarantees. OFFICIAL WEATHER ALERTS Read available official weather alerts and open details from the issuing organization. SEVEN WEATHER METRICS Explore feels-like temperature, humidity and dew point, wind and gusts, UV index, precipitation, visibility, and pressure. Each metric has an hourly chart and day selector. SAVED PLACES AND WIDGETS Search for cities and save places you check. Each one shows the current temperature and local time. Choose a place for your Home Screen or Lock Screen widgets. OPTIONAL REMINDERS Set a daily reminder to check the forecast or a reminder for the start of a suggested period. Notifications ask you to check the latest forecast; they are not real-time weather alerts. PRIVACY No accounts, ads, usage analytics, or third-party libraries. Location is requested only while you use the app. Coordinates required to provide weather information are sent to the necessary Apple services; the developer does not receive those coordinates. Saved places remain on the device. ACCESSIBILITY AND REQUIREMENTS Designed for VoiceOver and large text, including accessibility text sizes. For iPhone running iOS 17 or later. Weather data is provided by Apple Weather.

Screenshots

CelsiUSA3 screens
DaySky Forecast4 screens

Verdict

The call

The clearest difference is in-app purchases: DaySky Forecast at none against CelsiUSA's 1. DaySky Forecast also leads on update cadence (fortnightly vs every 7 months). On price, ads, 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. CelsiUSA sells 1 one-off in-app purchase. DaySky Forecast asks for nothing beyond the download.

UpkeepUpdate frequency

CelsiUSA ships an update every 7 months, DaySky Forecast fortnightly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
CelsiUSA versus DaySky Forecast: the parameters behind the verdict, then further details
ParameterCelsiUSADaySky Forecast
PriceFreeFree
Update frequencyEvery 7 monthsFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size12 MB3 MB
Age rating4+4+
DeveloperAndrew MyersTiago Galvao

In-app purchases

1 purchases

CelsiUSA

One-time1
  • Remove Ads$1.99
None

DaySky Forecast

No in-app purchases

Questions

Is CelsiUSA free?
CelsiUSA is free to download, with in-app purchases available.
Is DaySky Forecast free?
DaySky Forecast is free to download, with no in-app purchases.
Do CelsiUSA or DaySky Forecast have ads?
Neither CelsiUSA nor DaySky Forecast shows ads.
Which is updated more often, CelsiUSA or DaySky Forecast?
CelsiUSA ships an update every 7 months, and DaySky Forecast fortnightly. Most recently, CelsiUSA was updated on November 7, 2026 and DaySky Forecast on October 31, 2026.

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