Comparison

ilm.ee vs Sun Hours for Solar Panels

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

Head to head
About

ilm.ee

Features
Read full description

ilm.ee — ilmategija internetis, nüüd ka rakendusena. Ilm.ee rakendus koondab ilmainfo ühele ekraanivaatele: kõik vajalik on nähtaval ilma ühegi lisaliigutuseta — hetke ilm, erinevad prognoosid ühel graafikul ning sademete radar. Prognooside graafikul saab jälgida erinevate allikate ja mudelite prognoose, neid ühe vajutusega ümber lülitada ning detailse info sildilt iga tunni kohta valitud allika täpseid andmeid vaadata. MIS RAKENDUSES ON: • Kolm prognoosi ühel graafikul: Ilmateenistus (Keskkonnaagentuur), yr.no (Norra Meteoroloogiainstituut) ja NOAA GFS • Mõõdetud andmed ilmajaamadest — võrdluses prognoosidega • 48 tunni ja 7 päeva vaade, tunni täpsusega detailipaneel: temperatuur, sademed, võimalikud sademed, tuul ja puhangud • Tuulenooled Beaufort'i skaala värvides iga tunni kohta • Sademete radar (Keskkonnaagentuur) koos ajajoone ja animatsiooniga • Valik veebikaameraid asulates • Päikesetõus ja -loojang, tajutav temperatuur, õhurõhk, niiskus, UV-indeks • 39 Eesti linna ja asulat + täpne GPS-asukoht • Kolm keelt: eesti, English, русский Andmeallikad: ilm.ee, Ilmateenistus / Keskkonnaagentuur, MET Norway (CC BY 4.0), NOAA GFS (Open-Meteo), Maa-amet In-ADS. Rakendus on tasuta ja ei nõua konto registreerimist. ilm.ee — the weathermaker of Estonia, now as an app. The ilm.ee app brings the weather together on one screen view: everything you need is visible without a single extra tap — current weather, forecasts from different sources on one graph, and the rain radar. On the forecast graph you can follow forecasts from different sources and models, switch between them with one tap, and read exact hour-by-hour values from the selected source on the detail card. WHAT'S INSIDE: • Three forecasts on one graph: Estonian Weather Service, yr.no (MET Norway) and NOAA GFS • Measured readings from official weather stations — compared against the forecasts • 48-hour and 7-day views, an hour-by-hour detail panel: temperature, precipitation, possible precipitation, wind and gusts • Wind arrows coloured on the Beaufort scale for every hour • Precipitation radar (Estonian Environment Agency) with an animated timeline • A selection of webcams across Estonian towns • Sunrise and sunset, feels-like temperature, pressure, humidity, UV index • 39 Estonian towns + exact GPS location • Three languages: Estonian, English, Russian Data sources: ilm.ee, Estonian Weather Service / Estonian Environment Agency, MET Norway (CC BY 4.0), NOAA GFS (Open-Meteo), Estonian Land Board In-ADS. The app is free and requires no account registration.

About

Sun Hours for Solar Panels

Get a quick solar generation forecast for your UK home or portable panels. See hourly and daily predictions, optimize appliance usage with smart timers, and receive alerts for peak solar windows. Works with any UK solar setup without inverter login.

Highlights
  • 8-second solar generation forecast
  • Hourly and 7-day generation curves
  • 30-day historical weather view
  • Personalized daily forecast alerts
  • Smart appliance scheduling
  • Portable panel forecasting (Travel Mode)
  • Works with all UK solar setups
Features
Read full description

Will your panels generate anything today? Sun Hours tells you in 8 seconds — just your ZIP/postal code or map pin and your best-ever solar day. No inverter login. No azimuth. No account. No engineering degree. THE FORECAST Today's expected kWh before your coffee is ready. An hour-by-hour generation curve shows exactly when your panels peak. Get a 7-day solar forecast with cloud cover and efficiency for each day, plus a 30-day view built from historical weather at your exact location — so you understand your site's full seasonal rhythm, not just this week. SOL Every morning, Sol — Sun Hours' pixel-art sun mascot — delivers a personal forecast for your panels before you've touched a chart. When today's forecast matches your all-time best generation day, Sol sends a notification: "It's a 100% day." The solar equivalent of a perfect score. SUN HOURS ALERTS Optional morning notifications tell you the day's best two-hour solar window. "Best window today: 11 AM–1 PM." Charge the EV, run the dishwasher, or power another appliance with your own free electricity instead of the grid. SMART APPLIANCE TIMER Tell Sun Hours which appliances you use. It tells you exactly when to run each one during your solar peak. Washer, dishwasher, dryer, EV top-up — scheduled around your free generation, not your habits. TRAVEL MODE Portable panels on an RV? Camping with a folding kit? Drop a pin anywhere or use GPS to get a solar forecast for that exact location. One tap takes you back to your home setup. WORKS WITH EVERYTHING Hoymiles, Deye, Marstek, Envertech, APS, Solis, Growatt — and every other rooftop or plug-in setup. No inverter integration needed. If it generates kWh, Sun Hours can forecast it. ON IPAD AND MAC The dashboard opens out into two columns on iPad, so today and the week ahead sit side by side rather than stacked, with the animated sky running edge to edge behind a frosted glass toolbar. The forecast accuracy grid uses the extra width and labels each month. It runs on an M-series Mac too. Free to use. Infrequent, closable ads. No account. No tracking. Your location never leaves your device. Built in the UK for solar owners everywhere — by someone who got tired of apps making a simple question complicated. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sunhours.app/privacy

Screenshots

ilm.ee4 screens
Sun Hours for Solar Panels4 screens

Verdict

The call

The clearest difference is in-app purchases: ilm.ee at none against Sun Hours for Solar Panels's 3. ilm.ee also leads on ads (none vs shown). Sun Hours for Solar Panels's advantage is update cadence (every 6 days vs every 2 weeks) and device support (4 vs 1). On price 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. Sun Hours for Solar Panels sells 3 in-app purchases, starting at $0.99 per month. ilm.ee asks for nothing beyond the download.

UpkeepUpdate frequency

ilm.ee ships an update every 2 weeks, Sun Hours for Solar Panels every 6 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
ilm.ee versus Sun Hours for Solar Panels: the parameters behind the verdict, then further details
Parameterilm.eeSun Hours for Solar Panels
PriceFreeFree
Rating—4.0 (3 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 weeksEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.415.0 — better
Further details — not scored
Size40 MB55 MB
Age rating4+4+
DeveloperOÜ ContranovaAndy Mesa

In-app purchases

None

ilm.ee

No in-app purchases

3 purchases

Sun Hours for Solar Panels

Subscriptions1
  • Sun Hours Pro Monthly7 Days trial$0.991 Month
One-time2
  • No Ads - Lifetime$0.99
  • Sun Hours Pro - Lifetime$5.99

Questions

Is ilm.ee free?
ilm.ee is free to download, with no in-app purchases.
Is Sun Hours for Solar Panels free?
Sun Hours for Solar Panels is free to download, with in-app purchases available.
Do ilm.ee or Sun Hours for Solar Panels have ads?
Sun Hours for Solar Panels shows ads; ilm.ee does not.
Which is updated more often, ilm.ee or Sun Hours for Solar Panels?
ilm.ee ships an update every 2 weeks, and Sun Hours for Solar Panels every 6 days. Most recently, ilm.ee was updated on October 31, 2026 and Sun Hours for Solar Panels on November 10, 2026.

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