Comparison

Trimm 420 vs Geometry Calculator

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

Head to head
About

Trimm 420

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A rig trim simulation app for small sailing boats like the 420 class. Built in data is for the 420, but can be adapted for similar boats. You can use a note in the Notes app to hold text data for this app and then use copy and paste. Read on the website about the data format.

About

Geometry Calculator

Perform a wide range of geometric calculations for various shapes including triangles, rectangles, circles, and prisms. Features an intuitive interface with instant recalculations and interactive visualizations. Customize units and decimal places for precise results.

Highlights
  • Calculate angles, sides, perimeter, and area
  • Supports triangles, rectangles, circles, spheres, cones, trapezoids, parallelograms, cylinders, and rectangular prisms
  • Instant recalculations based on input
  • Interactive animated visualizations
  • Customizable units of measurement
  • Selectable number of decimal places
Features
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An application for calculating angles, sides, perimeter, area, and volume for triangles, rectangles, circles, spheres, cones, trapezoids, parallelograms, cylinders, and rectangular prisms is a versatile and convenient tool designed to help you perform a wide range of geometric calculations quickly and easily. Whether you are a student, a professional, or a DIY enthusiast, this geometry calculator can be a useful tool for solving everyday tasks. Depending on the selected shape, the calculator allows different types of calculations. For triangles, you can calculate angles, sides, perimeter, and area. For rectangles, side lengths, perimeter, and area are available. For circles, you can calculate radius, diameter, circumference, and area, as well as the volume and surface area of a sphere. For rectangular prisms, you can calculate side lengths, base area, surface area, and volume. The app features a simple and intuitive interface that allows you to easily enter values and quickly obtain results. After entering any parameter, the shape is recalculated instantly based on the latest input. An interactive animated visualization provides a clearer representation of the shape and the changes applied to it. Units of measurement for angles, length, area, and volume, as well as the number of decimal places, can be selected for convenient calculations. The geometry calculator is a practical tool that helps you easily perform a wide range of geometric calculations.

Screenshots

Trimm 4201 screens
Geometry Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Geometry Calculator at every 2 months against Trimm 420's every 18 months. Trimm 420's advantage is iOS requirement (11.0 vs 17). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trimm 420 ships an update every 18 months, Geometry Calculator every 2 months. The most recent releases landed on May 17, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
Trimm 420 versus Geometry Calculator: the parameters behind the verdict, then further details
ParameterTrimm 420Geometry Calculator
PriceFreeFree
Rating—5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 18 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17
Further details — not scored
Size20 MB2 MB
Age rating4+4+
DeveloperGustav SchubertAndrey Russkin

In-app purchases

None

Trimm 420

No in-app purchases

None

Geometry Calculator

No in-app purchases

Questions

Is Trimm 420 free?
Trimm 420 is free to download, with no in-app purchases.
Is Geometry Calculator free?
Geometry Calculator is free to download, with no in-app purchases.
Do Trimm 420 or Geometry Calculator have ads?
Neither Trimm 420 nor Geometry Calculator shows ads.
Which is updated more often, Trimm 420 or Geometry Calculator?
Trimm 420 ships an update every 18 months, and Geometry Calculator every 2 months. Most recently, Trimm 420 was updated on May 17, 2026 and Geometry Calculator on September 21, 2026.

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