Smart Candle vs Unitio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Candle
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Smart Candle Controller
Unitio
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Unitio – Smart Unit Converter & Calculator Unitio is a powerful and intuitive unit conversion app designed for students, engineers, professionals, travelers, and anyone who works with measurements daily. Whether you need quick conversions, live currency exchange rates, or complex calculations with mixed units, Unitio delivers accurate results instantly. Free Features: Converter Convert units across multiple categories with precision and clarity. Supported categories include: • Length • Area • Volume • Mass • Torque • Time • Number Format • Speed • Energy • Network Bandwidth • Pressure • Temperature • Speed • Illuminance • Force • Density • Frequency ... and more Switch between units effortlessly and get instant, reliable results. Currency Converter Convert global currencies quickly using up-to-date exchange rates. Stay informed with a convenient watchlist that lets you monitor your most important currencies at a glance. Free users can save up to 3 currencies on their watchlist. Premium users can track unlimited currencies. Perfect for travellers, international shoppers, and anyone working across different currencies. Premium Features: Calculator (Mixed-Unit Equations) Go beyond basic conversion. With Unitio’s built-in calculator, you can input equations that contain different units and compute the result in your desired unit. Unitio automatically handles unit normalization and dimensional consistency — so you don’t have to. Perfect for real-world problems in engineering, construction, physics, and everyday use. Unlimited Currency on conversion watchlist Subscription: - You can subscribe for Pro account with access to all categories for unit conversion, unlimited currency watchlist, calculator, and removal of all ads so you can enjoy the smoothest experience with Unitio. - Subscription options are Weekly, Monthly and Yearly with 3 days of free trial. - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Payment will be charged to your Apple ID account at confirmation of purchase. Why Unitio? • Clean, distraction-free interface • High precision calculations • Fast and lightweight • Designed for accuracy and reliability • Built for both quick conversions and complex equations Unitio simplifies measurements — so you can focus on what matters. Privacy Policy: https://toxicjstudio.com/privacy-policy Term of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Smart Candle at none against Unitio's 3. Smart Candle also leads on ads (none vs shown). Unitio's advantage is update cadence (every 5 days vs every 5 weeks). On price, 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
Both are free to download. Unitio sells 3 in-app purchases, starting at $1.99 per 7 days. Smart Candle asks for nothing beyond the download.
Smart Candle ships an update every 5 weeks, Unitio every 5 days. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.
| Parameter | Smart Candle | Unitio |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 48 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳市全粮愈生物科技有限公司 | Kin Man Leung |
In-app purchases
Smart Candle
No in-app purchases
Unitio
- UnitioPro$1.997 Days
- UnitioPro$3.991 Month
- UnitioPro3 Days trial$24.991 Year









