# ilm.ee vs Sun Hours for Solar Panels

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.

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.

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.

## The numbers

| Metric | ilm.ee | Sun Hours for Solar Panels |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (3 ratings)](https://appshunter.io/ios/app/sun-hours-for-solar-panels/id6773940001/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 55 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [OÜ Contranova](https://appshunter.io/developer/1896658605) | [Andy Mesa](https://appshunter.io/developer/1851743474) |

## What reviewers say

### ilm.ee

[App page](https://appshunter.io/ios/app/ilmee/id6769438657)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Sun Hours for Solar Panels

[App page](https://appshunter.io/ios/app/sun-hours-for-solar-panels/id6773940001)

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:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sun Hours Pro Monthly | $0.99 | per month |
| No Ads - Lifetime | $0.99 | one-time |
| Sun Hours Pro - Lifetime | $5.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*