Comparison

Rebar Calc vs Scale Ratio

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

Head to head
About

Rebar Calc

This app simplifies concrete and rebar calculations for construction projects. It helps estimate rebar tonnage, mesh quantities, and concrete volume, and can even provide quotes for materials.

Highlights
  • Rebar tonnage calculation
  • Sheet and roll mesh estimation
  • Concrete volume estimator
  • Material quote generation
  • Adjustable lap amount
  • Configurable rebar/mesh size
Features
Read full description

Rebar Calc is your all-in-one solution for rebar and concrete calculations. Whether you need to determine the tons and linear feet of rebar, sheets of sheet mesh, or rolls of roll mesh required for your concrete project, Rebar Calc has you covered. Tailor your calculations by configuring the necessary lap amount, and selecting the size of rebar, sheet mesh, or roll mesh to suit your specific needs. Rebar Calc also features a fast and easy concrete volume estimator in cubic yards. Quickly figure out how many bags of grout, fast-setting concrete, and other materials you'll need for slabs or concrete cores. Plus, with just a tap, you can get a quote on rebar, mesh, and other concrete supplies. Simplify your construction planning with Rebar Calc, the essential tool for every concrete job. These calculations are for estimating purposes only. All final figures should be verified by a professional before quoting, purchasing, or installing materials.

About

Scale Ratio

Easily convert distances between any scales for projects like architecture and model building. Input your measurements and desired scale to instantly calculate scaled distances.

Highlights
  • Convert distances between any scales
  • Supports architecture and modeling projects
  • Instant calculation of scaled distances
  • User-friendly input for distance and scale
Features
Read full description

Scale a measurement to a larger or smaller measurement, which is useful for architecture, modelling, and other projects. This app can be used to easily convert any distance in any scale to any other distance in any other scale. Simply enter the distance and scale to convert and the result will be displayed instantly. You need for example to create a mock up of a building at the scale 1:500. Enter the ground distances in the calculator, set the scale ratio to 1:500 and you'll get the mock up distance.

Screenshots

Rebar Calc4 screens
Scale Ratio3 screens

Verdict

The call

The clearest difference is rating: Rebar Calc at 4.9 against Scale Ratio's 3.7. Rebar Calc also leads on in-app purchases (none vs 1) and ratings volume (644 vs 3). Scale Ratio's advantage is ads (none vs shown) and review sentiment (83% vs 60%). On price 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

Both are free to download. Scale Ratio sells 1 one-off in-app purchase. Rebar Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rebar Calc holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: Rebar Calc has 644 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 60% of Rebar Calc's written reviews are positive against 83% of Scale Ratio's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Rebar Calc ships an update every 2 months, Scale Ratio fortnightly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard8 real differences · 2 level
Rebar Calc versus Scale Ratio: the parameters behind the verdict, then further details
ParameterRebar CalcScale Ratio
PriceFreeFree
Rating4.9 (644 ratings) — better3.7 (3 ratings)
Positive reviews60.0% of reviews83.3% of reviews — better
Number of ratings644 — better3
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.010.0 — better
Further details — not scored
Size13 MB25 MB
Age rating4+4+
DeveloperAppco LLC (USA)Adrien Brecheteau

Customer experience

Rebar Calc

All ratings637 ratings
Positive96.9%
Neutral1.6%
Negative1.6%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Scale Ratio

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

Rebar Calc

No in-app purchases

1 purchases

Scale Ratio

One-time1
  • Delete Ads in the app$4.99

Questions

Is Rebar Calc free?
Rebar Calc is free to download, with no in-app purchases.
Is Scale Ratio free?
Scale Ratio is free to download, with in-app purchases available.
Which has better reviews, Rebar Calc or Scale Ratio?
Rebar Calc is rated higher. Rebar Calc averages 4.9 out of 5 from 644 ratings, while Scale Ratio averages 3.7 from 3 ratings.
Do Rebar Calc or Scale Ratio have ads?
Rebar Calc shows ads; Scale Ratio does not.
Which is updated more often, Rebar Calc or Scale Ratio?
Rebar Calc ships an update every 2 months, and Scale Ratio fortnightly. Most recently, Rebar Calc was updated on November 1, 2026 and Scale Ratio on October 25, 2026.

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