Unit Converter ++ vs EvaSmartCylinder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter ++
Easily convert between various units of measurement for length, weight, temperature, volume, and more. This offline tool is designed for travelers, students, and professionals needing quick conversions.
- Converts length, weight, temperature, volume, and more
- Supports numerous units of measurement
- Works offline
- Useful for travelers, students, and professionals
- Covers speed, area, pressure, power, and energy units
Read full descriptionHide full description
Unit Converter ++ is an easy-to-use to converter length, weight, temperature, volume and multiple other units of measurement. Unit Converter ++ is useful for international travelers, students, cooks, engineers and anyone else who needs to convert between units. Units (abstract) Length: Mile, Yard, Foot, Inch, Kilometer, Meter, Centimeter... Temperature: Celsius, Fahrenheit... Volume: Gallon, Quart, Pint, Cup, Tablespoon, Teaspoon, Liter... Speed: Knots, Miles per Hour, Kilometers per Hour... Area: Square Mile, Square Foot, Acre... Weight: Ton, Pound, Ounce, Kilogram... Pressure: Pounds/Square Foot (psi), Bars, Inches of Mercury... Power: Horsepower, Kilowatts... Time: Years, Weeks, Days, Hours, Minutes... Energy: Calories, Ergs, Joules, Watt-Hours.. Fuel Consumption: Mile/Gallon (mpg), Liter/100 Kilometer.. Torque: Newton Meter, Pound-Force Foot... Force: Pound-Force, Dyne, Poundal... Unit Converter ++ works offline. Conversions are provided for informational purposes only, with no guarantee of accuracy or validity.
EvaSmartCylinder
Read full descriptionHide full description
EvaSmartCylinder is a cylinder that uses ultrasound technology to measure how much gas left inside and connects to your smartphone via bluetooth. To pair your smartphone with EvaSmart, press and hold the button on device. Blinking lights means that your device is in pairing mode. Then add the device on app main screen. (*You can add multiple EvaSmart cylinders to the app.) Now, you can check your current gas level in app. EvaSmart also periodically measures the gas level and sends all stored results to the app. With this stored data, the app generates a graph showing the consumption history and estimate the remaining time to run out of gas. You can also set an alarm threshold to be alerted when the gas level drops below the critical level.
Screenshots
Verdict
The clearest difference is ads: EvaSmartCylinder at none against Unit Converter ++'s shown. Unit Converter ++'s advantage is update cadence (every 9 months vs every 20 months) and iOS requirement (11.0 vs 15.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Unit Converter ++ ships an update every 9 months, EvaSmartCylinder every 20 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | Unit Converter ++ | EvaSmartCylinder |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (10 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 9 months — better | Every 20 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Nirav Patel | ASİS OTOMASYON A.Ş. |
In-app purchases
Unit Converter ++
No in-app purchases
EvaSmartCylinder
No in-app purchases
Questions
Is Unit Converter ++ free?
Is EvaSmartCylinder free?
Do Unit Converter ++ or EvaSmartCylinder have ads?
Which is updated more often, Unit Converter ++ or EvaSmartCylinder?
Other comparisons















