Comparison

AG2 Trader vs Heliocast

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

Head to head
About

AG2 Trader

This platform provides global weather forecasts and analysis to support commodity market trading. It offers customizable forecast tables, hourly and seasonal outlooks, and access to various global weather models. Designed for traders to quickly assess weather's market impact from anywhere.

Highlights
  • Customizable 15-day daily forecasts
  • 15-day hourly forecasts
  • Seasonal forecasts up to 7 months
  • Global model data access (GFS, ECMWF, Canadian, RPM)
  • Energy forecast team discussions
  • Mobile access via iPad app
Features
Read full description

AG2 Trader is the premier weather decision-support platform for the global commodity markets. Providing support for North American, European, Asian & Australian traders, a comprehensive global outlook is delivered in a single, easy-to-use platform. With a focus on forecast skill and delivering information first-to-market, AG2 Trader is designed to maximize your trading opportunities. AG2 Trader provides you all the tools to quickly and confidently assess weather’s impact on the market. Now when sitting at home, riding the train to work or simply away from your trading desk, you can easily and quickly access the key AG2 Trader content via the Trader IPad app. WSI Trader offers: - Customizable forecast table displaying the latest AG2 15 Day daily forecast for individual cities and regions - 15 Day hourly forecasts for individual cities and regions - AG2 1-5, 6-10, & 11-15 Day Forecasts - AG2 Seasonal Forecast out to 3 months - ECMWF Seasonal Forecast out to 7 months - Access to global model data from the GFS, ECMWF & Canadian as well as WSI's proprietary RPM model - Discussions from AG2 Energy Forecast Team ***** The ability to login to the AG2 Trader app requires an active paid subscription to the AG2 Trader service. ****

About

Heliocast

Features
Read full description

Will you see the aurora tonight? Heliocast answers the moment you open it, in a sentence, for exactly where you are standing. Most aurora apps hand you a Kp number and leave the hard part to you. But a Kp 6 is worth nothing under cloud, worth nothing under a full moon, and worth nothing at 9pm in June. Heliocast checks all four at once - geomagnetic activity, darkness, moonlight and your local cloud - and gives you one verdict with the reason attached. When the answer is no, it names which of the four is stopping you. TONIGHT, ANSWERED - A plain-language verdict and a 0-100 visibility score for your coordinates - Tonight's astronomical dark window, and how long it lasts - Moon phase, cloud cover by layer, live Kp and Bz - Where the auroral oval is sitting right now WHICH NIGHT TO GO - Every night ahead ranked on darkness, moon, cloud and the NOAA forecast - An hour-by-hour grid, 6pm to 6am, for the next three nights - Save the place you are travelling to and plan against its sky, not yours ALERTS THAT KNOW YOUR SKY - Our server watches NOAA's 1-minute feed all night and wakes your phone the moment your threshold is crossed, with the app closed - Cloud-aware and dark-aware by default, so a storm you could never have seen does not ring at 3am - Thresholds on Kp, and with Pro on Bz, solar wind speed and visibility A 3D AURORA MAP - Spin a live globe carrying the OVATION auroral oval and the day/night line - Six Arctic observatories and their all-sky cameras, one tap away: Yellowknife, Churchill, Fairbanks, Sodankyla, Tromso and Kiruna THE SUN, IN FULL - NASA SDO in eight wavelengths, plus white-light continuum and magnetogram - Active regions plotted at their real heliographic positions - SOHO/LASCO C2 and C3 coronagraphs, and GOES CCOR-1 - L1 solar wind speed, density and the full interplanetary magnetic field - GOES X-ray and proton flux with flare classes, for anyone watching HF propagation and radio blackouts WHAT IS HEADING THIS WAY - Earth-directed CMEs with predicted arrival times and expected Kp - Flare history, live NOAA watches and warnings, and the R, S and G scales Plus a sightings journal that files the conditions alongside your photo, so you learn what actually works, and a Learn section that explains every number in the app. WIDGETS Tonight's verdict on your home screen and your lock screen. EIGHT AUTHORITATIVE FEEDS NOAA SWPC, NASA SDO, NASA DONKI, SOHO/LASCO, GOES, DSCOVR, Kyoto WDC and USGS, and MET Norway for cloud. Everything is fetched and cached on our own server, so the app stays fast and the agencies never see anything about you. FREE, AND HONEST ABOUT IT No account. No ads. No sign-up wall. The free tier is a real app: tonight's verdict, the full 3D map, live Kp, the Sun and solar wind, the observatories, the journal, and one overnight alert. HELIOCAST PRO $4.99 a year. Not a month. That is about 42 cents a month, and less than most aurora apps charge for four weeks. - The full 14-night ranking, not just three - Up to 10 saved places, home and the trip - Unlimited alerts on Bz, wind speed and visibility, plus quiet hours - A weather-radar layer on the globe - Your full sightings archive, kept with its conditions Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

AG2 Trader3 screens
Heliocast4 screens

Verdict

The call

The clearest difference is in-app purchases: AG2 Trader at none against Heliocast's 1. Heliocast's advantage is update cadence (fortnightly vs every 3 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. Heliocast sells 1 in-app purchase, starting at $4.99 per year. AG2 Trader asks for nothing beyond the download.

UpkeepUpdate frequency

AG2 Trader ships an update every 3 months, Heliocast fortnightly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
AG2 Trader versus Heliocast: the parameters behind the verdict, then further details
ParameterAG2 TraderHeliocast
PriceFreeFree
Rating3.2 (9 ratings) — better—
Positive reviews40.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size11 MB46 MB
Age rating4+4+
DeveloperAtmospheric G2Ingenio Productions LLC

In-app purchases

None

AG2 Trader

No in-app purchases

1 purchases

Heliocast

Subscriptions1
  • Heliocast Pro (Annual)$4.991 Year

Questions

Is AG2 Trader free?
AG2 Trader is free to download, with no in-app purchases.
Is Heliocast free?
Heliocast is free to download, with in-app purchases available.
Do AG2 Trader or Heliocast have ads?
Neither AG2 Trader nor Heliocast shows ads.
Which is updated more often, AG2 Trader or Heliocast?
AG2 Trader ships an update every 3 months, and Heliocast fortnightly. Most recently, AG2 Trader was updated on November 1, 2026 and Heliocast on October 31, 2026.

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