Danfoss Icon2™ vs Smidge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Danfoss Icon2™
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The Danfoss Icon2™ App is used in combination with the Danfoss Icon2™ Floor heating control system for easy and convenient commissioning and configuration. Use the App for easy-to-follow step by step instructions and to select between the applications in the comprehensive catalogue floor heating / cooling applications. The Danfoss Icon2™ App is required when using other than default settings on the Danfoss Icon2™ Main Controller or if an advanced application is required.
Smidge
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Smidge is a tiny, careful unit converter. No ads, no chatter, no sign-ups — just the answer, at the speed you need it. Type a number and read the result instantly. Smidge does the math, remembers what you use, and gets out of your way. WHAT YOU CAN CONVERT • Length, mass, volume, temperature, area, speed and more • See every unit at once with the "all at once" view • Do quick math right in the field — type 3 × 250 + 50 and convert the result BUILT FOR REAL LIFE • In the kitchen — density-aware cooking conversions. Cups to grams by ingredient (flour, sugar, butter and more), using USDA reference densities. No more guessing. • Trades — millimetres to feet, inches and fractions, down to 1/8, 1/16, 1/32 or 1/64. • Medical reference — blood glucose between mg/dL and mmol/L, shown against standard ADA ranges. For education only, not a diagnosis. • Currency — handy offline reference rates for quick estimates. MADE TO STAY OUT OF THE WAY • Pin the conversions you use most for one-tap access • Metric or imperial, with adjustable decimal precision • Works fully offline — everything runs on your device • No accounts, no ads, no tracking, no data collected Smidge keeps everything local. There's no backend, nothing to sign in to, and nothing leaves your phone. A small amount. Measured carefully. — Medical conversions are provided for educational and reference purposes only and are not medical advice or a diagnosis; always consult a qualified clinician. Currency figures are approximate offline references and may not reflect current market rates.
Screenshots
Verdict
The clearest difference is update cadence: Smidge at every 6 days against Danfoss Icon2™'s every 2 months. Smidge also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Danfoss Icon2™ ships an update every 2 months, Smidge every 6 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Danfoss Icon2™ | Smidge |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Danfoss A/S | Siddharth Venkatesan |
In-app purchases
Danfoss Icon2™
No in-app purchases
Smidge
No in-app purchases









