Comparison

SI To USCS unit Conversion vs Simple Paper Model

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

Head to head
About

SI To USCS unit Conversion

This app facilitates quick unit conversions between SI and USCS/Imperial systems for engineering applications. It covers 18 major categories, including mass, length, volume, and thermodynamics properties. Users can input data and generate conversion tables.

Highlights
  • SI to USCS/Imperial unit conversion
  • 18 major unit categories
  • Engineering and applied science focus
  • Data input and conversion
  • Conversion table generation
  • Gas flow rate conversion
Features
Read full description

UnitConv app helps in quick unit conversion from SI units to USCS/Imperial and vice verse for most of the units associated in engineering conventions and computations. Therefore, App can be very handy for engineers and students dealing with subjects such as thermodynamics, fluid mechanics, heat transfers and other applied engineering subjects where property data requires frequent conversion. This app covers units under following18 major categories. 1. Mass (kg, lbm, slug, ounce, grain, M. Tonne, Ton) 2. Length (meter, ft, cm, in, mm, km, mile) 3. Area (m^2, ft^2, cm^2, in^2) 4. Volume (liter, gal (US), gal (UK), m^3. ft^3, fl_oz) 5. Temperature (deg C, deg F, Kelvin, Rankin) 6. Flow rate (lpm, gpm, cc/sec, ci/sec) 7. Force (Newton, dyne, kgf, lbf) 8. Pressure (kPa, Bar, psi, atm, kgf/cm^2, in_wg, mm_Hg ) 9. Velocity (m/sec. ft/sc, kmh, mph) 10. Energy (Joule, cal, BTU, m.kgf, ft.lbf) 11. Power (kW, hp, kcal/s, BTU/hr, kgf.m/s, lbf.ft/s) 12. Density (kg/m^3, lb/ft^3, m/cc, lbf.sec^2/in^4) 13. Dynamic Viscosity (Pa.sec, poise, cP, reyn, kgf.sec/m^2, lbf.sec/ft^2) 14. Kinematic viscosity (stokes, cSt, newts) 15. Specific heat (joule/kg.K, BTU/lb.F, cal/kg.C) 16. Thermal Conductivity (W/m.K, BTU/hr.ft.F) 17. Enthalpy (kJ/kg, BTU/lb) 18. Entropy (kJ/kg.K, BTU/hr.R) By default, the app provides the conversion factor for units listed above. However, users can enter in any data and then convert its value in the chosen unit from the picker. In addition app generates a conversion table for the chosen unit. The following screen shots illustrate this for pressure as an example. There is a separate section under Flow Rate category for gas flow rate conversion. One can quickly convert gas flow rate in Slpm to Scfm and vice verse as shown in the screen shot. With Best Compliments From: Kaup Shenoy Associates.

About

Simple Paper Model

Create intricate paper models of houses, vehicles, and more. Download a wide variety of designs for free and enjoy a relaxing, hands-on crafting experience to de-stress.

Highlights
  • Downloadable paper model designs
  • Variety of model types (houses, vehicles, Pokemon)
  • Models range from simple to moderate difficulty
  • Regular app updates with new models
  • Relaxing and stress-relieving activity
Features
Read full description

To relieve the pressures in our daily work and life, we found building models IS really effective! Build interesting paper models with color printer, paper, scissors, paper cutter and glue. We collected many beautiful and interesting paper models, all the models can be downloaded without further charge or periodic subscription. With the model screenshots and descriptions, you will be able to find the models that worth the time you are going to spend in building the models. This App contained 60+ building, Pokemon, bus, vehicle and military models, from simple to moderate difficulty. When we discover other interesting paper models, we will continue to update the app. Disclaimer: Please note that this app contains a collection of paper models. All trademarks, copyrights and images belong to their respective owners, using this app is only within the scope of fair use guidelines.

Screenshots

SI To USCS unit Conversion4 screens
Simple Paper Model4 screens

Verdict

The call

The clearest difference is review sentiment: SI To USCS unit Conversion at 100% against Simple Paper Model's 50%. SI To USCS unit Conversion also leads on price (Free vs $2.99) and rating (5.0 vs 1.0). On ratings volume, ads, 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

CostPrice · In-app purchases · Ads · Monetization

SI To USCS unit Conversion is free to download; Simple Paper Model costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SI To USCS unit Conversion holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of SI To USCS unit Conversion's written reviews are positive against 50% of Simple Paper Model's.

UpkeepUpdate frequency

SI To USCS unit Conversion ships an update every 10 months, Simple Paper Model every 21 months. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
SI To USCS unit Conversion versus Simple Paper Model: the parameters behind the verdict, then further details
ParameterSI To USCS unit ConversionSimple Paper Model
PriceFree — better$2.99
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings11
Update frequencyEvery 10 months — betterEvery 21 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.313.0 — better
Further details — not scored
Size1 MB11 MB
Age rating4+4+
DeveloperKaup Shenoy AssociatesChi Kau Wan

Customer experience

SI To USCS unit Conversion

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Simple Paper Model

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

SI To USCS unit Conversion

No in-app purchases

None

Simple Paper Model

No in-app purchases

Questions

Is SI To USCS unit Conversion free?
SI To USCS unit Conversion is free to download, with no in-app purchases.
Is Simple Paper Model free?
Simple Paper Model costs $2.99, with no in-app purchases.
Which has better reviews, SI To USCS unit Conversion or Simple Paper Model?
SI To USCS unit Conversion is rated higher. SI To USCS unit Conversion averages 5.0 out of 5 from 1 ratings, while Simple Paper Model averages 1.0 from 1 ratings.
Do SI To USCS unit Conversion or Simple Paper Model have ads?
Neither SI To USCS unit Conversion nor Simple Paper Model shows ads.
Which is updated more often, SI To USCS unit Conversion or Simple Paper Model?
SI To USCS unit Conversion ships an update every 10 months, and Simple Paper Model every 21 months. Most recently, SI To USCS unit Conversion was updated on October 3, 2026 and Simple Paper Model on October 10, 2026.

Other comparisons