Comparison

Astrospheric vs Seasons Flow

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

Head to head
About

Astrospheric

This app offers advanced weather forecasting and astronomical data for stargazers and astrophotographers. It provides detailed hourly forecasts, cloud and sky transparency reports, and alerts for celestial events. It also includes tools for astronomical societies and offline site setup.

Highlights
  • 84-hour hourly weather forecast
  • Ensemble cloud forecast
  • Kp index for Aurora
  • ISS flyover paths
  • Integrated smoke forecast
  • Sky and ground data
  • Rise and set times
  • Solar and Lunar eclipse data
Features
Read full description

Astrospheric provides advanced weather tools for professional astronomers and astrophotographers, and supports hundreds of astronomical societies with tools that help members stay connected. Are you using what the pros use? Features • 84 hour, hour-by-hour forecast • Free notification reminders for major astronomical events, customized for your location • Ensemble cloud forecast lets you quickly compare the major forecast models with hourly updates (Astrospheric Pro) • Extended cloud forecast • Kp index for Aurora viewing (and alerts with Pro) • International Space Station (ISS) flyover paths and times • Astrospheric is the only astronomy service that integrates the smoke forecast into the transparency report • Sky data: cloud, sky transparency, seeing • Ground data: wind, temperature, and humidity • Precise rise and set times for both the sun and moon • Get weather alerts when conditions meeting your requirements are met (Astrospheric Pro) • Details Solar and Lunar eclipse data Astronomical Societies • Stay connected with chat, image sharing, and event planning with all of your members. • Qualifying astronomical societies can get Pro features for all of their members Site Mode • Information necessary to quickly set up your GOTO tracking mount • Available even if you don’t have a network connection Astrospheric Professional is now available to enable Weather Alerts, Ensemble cloud forecast, and more! • Astrospheric Professional is billed monthly or yearly and will auto-renew unless turned off at least 24-hours before the end of the current subscription period. The renewal cost will be the same as the initial sign-up cost of the subscription. Any changes in cost will be communicated before renewal takes place. • Payment will be charged to iTunes Account at confirmation of purchase • Subscriptions may be managed by you and auto-renewal may be turned off by going to the your Account Settings after purchase. A link to these settings is made available within Astrospheric "My Profile" for easy access. • The terms of use and privacy policy may be found at https://www.astrospheric.com/privacypolicy.php, purchasing a subscription shows agreement to these terms. PLEASE NOTE: Weather data is not available for Hawaii due to the domain area covered by the Canadian Meteorological Center. However, satellite and light pollution map layers, as well as other features will work in Hawaii. More information on Astrospherics forecast domain can be found here: https://www.astrospheric.com/dynamiccontent/datadomain.html

About

Seasons Flow

Features
Read full description

Season Flow is a simple, elegant way to follow the rhythm of the year. See the current season, how much time is left, when the next season begins, and the astronomical dates behind each transition. Add a clean home screen widget to keep the season countdown visible at a glance. Designed for people who enjoy nature, daylight, solstices, equinoxes, and the quiet passage of time, Season Flow keeps everything focused, minimal, and easy to read. Features: • Current season countdown • Home screen widgets • Local season dates based on your location • Manual location option • Northern and Southern Hemisphere support • Timeline for upcoming seasons • Solstice and equinox details • Clean, minimal visual design Season Flow helps you stay connected to the year, one season at a time.

Screenshots

Astrospheric4 screens
Seasons Flow4 screens

Verdict

The call

The clearest difference is price: Astrospheric at Free against Seasons Flow's $0.99. Astrospheric also leads on update cadence (every 2 weeks vs every 3 months) and chart position (#94 vs unranked). Seasons Flow's advantage is in-app purchases (none vs 2). On ads 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

Astrospheric is free to download; Seasons Flow costs $0.99 up front. Astrospheric sells 2 in-app purchases, starting at $2.99 per month. Seasons Flow asks for nothing beyond the download.

UpkeepUpdate frequency

Astrospheric ships an update every 2 weeks, Seasons Flow every 3 months. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

Scorecard5 real differences · 6 level
Astrospheric versus Seasons Flow: the parameters behind the verdict, then further details
ParameterAstrosphericSeasons Flow
PriceFree — better$0.99
Rating4.8 (487 ratings) — better—
Positive reviews86.8% of reviews—
Number of ratings487 — better—
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
Best chart rank#94 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.4
Further details — not scored
Size39 MB3 MB
Age rating4+4+
DeveloperDaniel Fiordalisalan Spring

Bugs and requests

Astrospheric

Reported bugs

2 issues
  • App crashing or not loading on some devices
  • Inconsistent temperature and wind data

Requested features

4 requests
  • Notification system for clear skies
  • Widgets for quick access to data
  • More detailed transparency and seeing data
  • Ability to flip east and west in the app

Seasons Flow

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Astrospheric

Subscriptions2
  • Astrospheric Pro Subscription7 Days trial$2.991 Month
  • Astrospheric Pro Subscription7 Days trial$29.991 Year
None

Seasons Flow

No in-app purchases

Questions

Is Astrospheric free?
Astrospheric is free to download, with in-app purchases available.
Is Seasons Flow free?
Seasons Flow costs $0.99, with no in-app purchases.
Do Astrospheric or Seasons Flow have ads?
Neither Astrospheric nor Seasons Flow shows ads.
Which is updated more often, Astrospheric or Seasons Flow?
Astrospheric ships an update every 2 weeks, and Seasons Flow every 3 months. Most recently, Astrospheric was updated on November 11, 2026 and Seasons Flow on November 10, 2026.

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