ILUM Mobile vs The GrassGuide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ILUM Mobile
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Using the same login as ILUM Access, Invicta clients will be able to register samples and have instant access to recent reports and history for their assets. Machines and components can be easily searched by keyword (e.g. tag number) to see available information. Users can access oil analysis reports including diagnosis comments, results and a PDF copy of the report. Sample registration can be done right at the sample point using a mobile device. The app is available in three languages - English, Norwegian and Swedish.
The GrassGuide
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The GrassGuide gives you all the tools you need for a perfect lawn. With us you get access to: A personal fertilization plan Mowing schedule Calendar and "to-do" list Journal Guides Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ILUM Mobile at none against The GrassGuide's 2. ILUM Mobile also leads on iOS requirement (13.0 vs 15.1). The GrassGuide's advantage is update cadence (every 2 months vs every 10 months). On price, 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
Both are free to download. The GrassGuide sells 2 in-app purchases, starting at $4.99 per month. ILUM Mobile asks for nothing beyond the download.
ILUM Mobile ships an update every 10 months, The GrassGuide every 2 months. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.
| Parameter | ILUM Mobile | The GrassGuide |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 66 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Invicta AS | Mathias Vabo |
In-app purchases
ILUM Mobile
No in-app purchases
The GrassGuide
- Premium$4.991 Month
- Premium Årlig$49.991 Year
Questions
Is ILUM Mobile free?
Is The GrassGuide free?
Do ILUM Mobile or The GrassGuide have ads?
Which is updated more often, ILUM Mobile or The GrassGuide?
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