Rebar Calc vs Scale Ratio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Rebar tonnage calculation
- Sheet and roll mesh estimation
- Concrete volume estimator
- Material quote generation
- Adjustable lap amount
- Configurable rebar/mesh size
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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.
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.
- Convert distances between any scales
- Supports architecture and modeling projects
- Instant calculation of scaled distances
- User-friendly input for distance and scale
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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
Verdict
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
Both are free to download. Scale Ratio sells 1 one-off in-app purchase. Rebar Calc asks for nothing beyond the download.
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.
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.
| Parameter | Rebar Calc | Scale Ratio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (644 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 60.0% of reviews | 83.3% of reviews — better |
| Number of ratings | 644 — better | 3 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Appco LLC (USA) | Adrien Brecheteau |
Customer experience
Rebar Calc
Scale Ratio
In-app purchases
Rebar Calc
No in-app purchases
Scale Ratio
- Delete Ads in the app$4.99
Questions
Is Rebar Calc free?
Is Scale Ratio free?
Which has better reviews, Rebar Calc or Scale Ratio?
Do Rebar Calc or Scale Ratio have ads?
Which is updated more often, Rebar Calc or Scale Ratio?
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