Comparison

US Unit Converter vs IDEP

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

US Unit Converter

Easily convert between US customary units and the International System of Units for various measurements like length, weight, area, volume, and temperature. Access conversion history and remove ads with a premium upgrade.

Highlights
  • Length conversion
  • Weight conversion
  • Area conversion
  • Liquid volume conversion
  • Temperature conversion
  • Conversion history
  • Ad-free option
Features
Read full description

"US Unit Converter" converts the units of length, weight, area, liquid volume, and temperature used in the United States into the International System of Units such as meters and kilograms. Select the category of the unit you want to convert at the top of the screen, enter the value, and you can convert immediately. The units that can be converted are as follows. [Unit of length] Meters [m], centimeters [cm], millimeters [mm], kilometers [km], inches [in], feet [ft], yards [yd], miles [mile] [Unit of weight] Kilogram [kg], gram [g], pound [lb], ounce [oz] [Unit of area] Square meters [m2], Are [a], hectares [ha], square kilometers [km2], square feet [ft2], square inches [in2], square miles [mi2], acres [acre], square yards [yd2] [Unit of liquid volume] Litre [L], milliliter [ml], fluid ounce [fl oz], cup [cup], pint [pt], quart [qt], gallon [gal] [Temperature unit] Celsius [℃], Fahrenheit [℉] In the free version, you can see only the previous data in the conversion history. If you want to see 100 historical data or hide ads, please consider purchasing the premium version in the app. ---------------------- Terms of Service and Privacy Policy: https://akikibai-labolatory.jimdofree.com/privacy-policy/

About

IDEP

Features
Read full description

Used for simple operation of SAI series mid frequency inverter precision resistance welding controller in the business field: By connecting to the controller's wifi hotspot, the connection between the iPhone and the controller can be achieved, enabling some simple programming operations or viewing welding curves and welding data.

Screenshots

US Unit Converter4 screens
IDEP3 screens

Verdict

The call

The clearest difference is in-app purchases: IDEP at none against US Unit Converter's 1. IDEP also leads on ads (none vs shown). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. US Unit Converter sells 1 one-off in-app purchase. IDEP asks for nothing beyond the download.

UpkeepUpdate frequency

US Unit Converter ships an update every 6 months, IDEP every 12 months. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
US Unit Converter versus IDEP: the parameters behind the verdict, then further details
ParameterUS Unit ConverterIDEP
PriceFreeFree
Rating4.8 (109 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings109 — better—
Update frequencyEvery 6 months — betterEvery 12 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size6 MB47 MB
Age rating4+4+
DeveloperKei Suefuji帅 王

In-app purchases

1 purchases

US Unit Converter

One-time1
  • PREMIUM$3.99
None

IDEP

No in-app purchases

Questions

Is US Unit Converter free?
US Unit Converter is free to download, with in-app purchases available.
Is IDEP free?
IDEP is free to download, with no in-app purchases.
Do US Unit Converter or IDEP have ads?
US Unit Converter shows ads; IDEP does not.
Which is updated more often, US Unit Converter or IDEP?
US Unit Converter ships an update every 6 months, and IDEP every 12 months. Most recently, US Unit Converter was updated on October 18, 2026 and IDEP on October 3, 2026.

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