Comparison

Astrospheric vs Water Temp Forecast

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

Water Temp Forecast

Provides real-time water temperatures and 7-day forecasts for thousands of monitoring stations across the US and Canada. Visualize conditions on a map, search for specific locations, and receive personalized alerts. Ideal for anglers, paddlers, and scientists.

Highlights
  • Live water temperature map
  • 7-day temperature forecasts
  • Search over 60,000 stations
  • Real-time discharge data
  • Save favorite stations
  • Customizable forecast alerts
  • °F or °C support
Features
Read full description

Water Temp Forecast gives anglers, paddlers, guides, and river scientists live water temperatures and 7-day forecasts for tens of thousands of monitoring stations across the US and Canada. FIND WATER FAST • Map colored by current water temperature — cold blue to critical red at a glance • Groups of stations cluster into bubbles showing the area's average temperature • Search 60,000+ stations by river, lake, or site number KNOW BEFORE YOU GO • 7-day water-temperature forecast with a confidence band for every station • Live instantaneous temperature and discharge for real-time gauges • Flow conditions vs. typical, drought status, and watershed summaries • Weather outlook alongside every forecast MAKE IT YOURS • Save favorite stations and compare up to 5 side by side • Forecast delivery by email, push notification, or both — daily, weekly, or monthly • Temperature alerts when a station crosses your threshold • °F or °C everywhere Data comes from USGS, state and provincial agencies, tribal and research networks, and community-contributed monitoring sites, unified by watertemperatureforecast.com. A free account adds saved stations and forecast subscriptions. Important: Forecasts are model estimates and observations come from third-party sensors (USGS and other agencies), which can be delayed or inaccurate. This app is for planning and general interest only — not for navigation, ice conditions, or any safety-of-life decision. Always check conditions yourself before entering the water.

Screenshots

Astrospheric4 screens
Water Temp Forecast4 screens

Verdict

The call

The clearest difference is in-app purchases: Water Temp Forecast at none against Astrospheric's 2. Water Temp Forecast also leads on rating (5.0 vs 4.8). Astrospheric's advantage is ratings volume (484 vs 1) and update cadence (every 2 weeks vs every 2 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. Astrospheric sells 2 in-app purchases, starting at $2.99 per month. Water Temp Forecast asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Water Temp Forecast holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Astrospheric has 484 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Astrospheric ships an update every 2 weeks, Water Temp Forecast every 2 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 5 level
Astrospheric versus Water Temp Forecast: the parameters behind the verdict, then further details
ParameterAstrosphericWater Temp Forecast
PriceFreeFree
Rating4.8 (484 ratings)5.0 (1 ratings) — better
Positive reviews86.8% of reviews—
Number of ratings484 — better1
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
Best chart rank#71 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size39 MB30 MB
Age rating4+4+
DeveloperDaniel FiordalisAdvanced Field Technologies LLC

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

Water Temp Forecast

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

Water Temp Forecast

No in-app purchases

Questions

Is Astrospheric free?
Astrospheric is free to download, with in-app purchases available.
Is Water Temp Forecast free?
Water Temp Forecast is free to download, with no in-app purchases.
Which has better reviews, Astrospheric or Water Temp Forecast?
Water Temp Forecast is rated higher. Astrospheric averages 4.8 out of 5 from 484 ratings, while Water Temp Forecast averages 5.0 from 1 ratings.
Do Astrospheric or Water Temp Forecast have ads?
Neither Astrospheric nor Water Temp Forecast shows ads.
Which is updated more often, Astrospheric or Water Temp Forecast?
Astrospheric ships an update every 2 weeks, and Water Temp Forecast every 2 months. Most recently, Astrospheric was updated on November 6, 2026 and Water Temp Forecast on November 5, 2026.

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