Rebar Calc vs Concrete Evap
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.
Concrete Evap
This tool helps construction professionals assess the risk of plastic shrinkage cracking in concrete. It analyzes real-time weather data to calculate evaporation rates and provides a risk assessment, enabling preventative measures for better concrete quality.
- Plastic shrinkage crack risk assessment
- Real-time weather data analysis
- Evaporation rate calculation
- Risk assessment for concrete quality
- On-site decision making
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Concrete Eval is a specialized tool designed for construction professionals to assess the risk of plastic shrinkage cracking in concrete due to environmental conditions. By analyzing real-time weather data—including concrete and air temperatures, wind speed, and humidity—the app calculates the evaporation rate and provides a risk assessment. This empowers you to implement appropriate measures, such as using windbreaks or surface coverings, to ensure the quality and durability of your concrete work. Why Choose Concrete Eval? Concrete Eval is specifically developed for construction professionals who need to make quick, informed decisions on-site regarding concrete curing conditions. By providing immediate risk assessments based on current weather data, the app helps prevent costly repairs and ensures the structural integrity of your projects. Note: Always consider local guidelines and consult with experts when implementing protective measures for concrete work.
Screenshots
Verdict
The clearest difference is update cadence: Rebar Calc at every 2 months against Concrete Evap's every 20 months. Rebar Calc also leads on ratings volume (643 vs 1). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 4.9 for Rebar Calc against 5.0 for Concrete Evap. That said, the two scores are not equally well evidenced: Rebar Calc has 643 ratings behind it against 1, so its average is the more settled of the two.
Rebar Calc ships an update every 2 months, Concrete Evap every 20 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | Rebar Calc | Concrete Evap |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (643 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 643 — better | 1 |
| Update frequency | Every 2 months — better | Every 20 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 13 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Appco LLC (USA) | Chad Wallace |
Customer experience
Rebar Calc
Concrete Evap
In-app purchases
Rebar Calc
No in-app purchases
Concrete Evap
No in-app purchases
Questions
Is Rebar Calc free?
Is Concrete Evap free?
Which has better reviews, Rebar Calc or Concrete Evap?
Do Rebar Calc or Concrete Evap have ads?
Which is updated more often, Rebar Calc or Concrete Evap?
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