Rebar Calc vs Grades!
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
Read full descriptionHide 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.
Grades!
Read full descriptionHide full description
This is a very basic, simple calculator for teachers. It allows you to add up the grades students score for every aspect of their assignments and homework. Rather basic. Its free. No ads. No tracking.
Screenshots
Verdict
The clearest difference is ads: Grades! at none against Rebar Calc's shown. Rebar Calc's advantage is update cadence (every 2 months vs every 86 months) and iOS requirement (18.0 vs 26.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rebar Calc ships an update every 2 months, Grades! every 86 months. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.
| Parameter | Rebar Calc | Grades! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (644 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 644 — better | — |
| Update frequency | Every 2 months — better | Every 86 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 13 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Appco LLC (USA) | Markus Meyerhofer |
In-app purchases
Rebar Calc
No in-app purchases
Grades!
No in-app purchases
Questions
Is Rebar Calc free?
Is Grades! free?
Do Rebar Calc or Grades! have ads?
Which is updated more often, Rebar Calc or Grades!?
Other comparisons
