Comparison

Triangle3 vs Verify Calculator

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

Head to head
About

Triangle3

This app provides advanced calculation tools for field work, specializing in right and unequal triangles. It supports complex shapes like cones, pipes, and screw wings, with AR visualization for floor plans. It also includes standard calculator functions and memory features.

Highlights
  • Right and unequal triangle calculations
  • Complex shape development (cones, pipes, etc.)
  • Augmented Reality (AR) floor plan visualization
  • Standard calculator functions with memory
  • Trigonometric and cosine theorem calculations
  • PCD and screw wing calculations
Features
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This is a calculator application created by me, a canner, focusing on the functions of a calculator necessary for field work. Even if you don't understand trigonometric functions, you can easily calculate with this calculator. It can calculate right triangles and unequal triangles. It can calculate memory, answer memory, pi, repetition, parentheses, trigonometric functions, and cosine theorem. Develop cones (including misalignment), diagonal cuts, R-cuts, T-pipes, shrimp tubes, rounded corners, rounded corners (eccentricity), hopper eccentricity, pipes from mirror plates, connecting pipes to tapered pipes, screw wings, and calculate PCD. It is possible to display the development on the floor in full size with AR for a specific development. User's Manual ############################ Calculator section Press and hold the "ANS" button to display past calculation results. Tap the label of the calculation result (right after pressing =) to mark the value in the ANS list. Tap the white button to enter the value displayed on the label. Swipe the screen to the left or right to rotate the right triangle. Swipe the screen up and down to flip the right triangle. Enter two right triangles and three unequal triangles. Tap the "Cal" button to display the calculation result. Tap "Cl" button to clear the displayed value. You can also use the "0" label to erase only the specified locations. If you touch the button and slide it down, the numerical value of the calculation result will be displayed on the label, and can be used for the next calculation. Trigonometric calculations can be done with By sliding the [4] and [6] buttons, you can go back and forward. Pressing the CLR button once will erase the number. Press twice to reset the rotation. Press and hold to erase numbers, reset rotation, and erase memory. Press and hold to erase numbers, reset rotation, and clear memory. Automatic input of pipe outline Example 50A -> Input "5", "0", "1 slide". ใ€€ใ€€1ยผB -> Input "1", "4", "1" and "2 slides". Each slide twice in succession will reduce the value by half. Expansion section The input method is the same as in the calculator section. To expand a pipe, PCD, or mirror, slide the screen to the left or right to select the expansion diagram. Basically, all buttons need to be entered, but in some places "0" can be used. For round corners (eccentricity), double-tap the screen after entering the numerical value for round corners to switch to the input screen. Please enter the division of the circumference in multiples of 4. The calculation result is an image, so it may differ from the actual shape. Disclaimer Although every effort has been made to ensure the accuracy of the calculation results in this application, the accuracy is not guaranteed. Please note that we are not responsible for any damage, loss, or disadvantage caused by the use of this application.

About

Verify Calculator

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Recommended for accountants and finance professionals! Verify Calculator is a perfect tool for checking the accuracy of invoice and receipt calculations, resembling a printed receipt.ย  It is ideal for expense calculations.ย  By tapping on the receipt section, the color changes, making it easy to verify the entered values. To facilitate verification, you can swipe down the keyboard section to hide it, allowing the receipt section to be displayed more extensively.ย  Swiping up on the calculation result section will display the keyboard again. With two tax buttons, you can assign both 10% and 8% rates.ย  There is also a rounding button that enables single-tap handling of decimal places. Features 1.Calculation results are displayed in a list like a receipt. 2.Two consumption tax buttons for easy calculation. 3.One-click rounding calculation button. 4.Export calculation history in text format. 5.Tap the receipt section to change its color for verification. 6.Swipe down the keyboard to expand the receipt section. 7.Long press the receipt section to copy it to the display section. 8.Long press the calculation result to copy the value to the clipboard. 9.Long press the "C/AC" button to clear all calculations in the receipt section. 10.Various errors are displayed in the display section. 11.Tax rate can be changed. 12.Choose from truncation, rounding up, or rounding down for tax-included calculations. 13.Supports dark mode. 14.Maximum of 100 rows. Advertisements You can use it for free, but advertisements will be displayed.ย  Disclaimer This calculator application Verify Calculator is provided for general calculation purposes.ย  We do not guarantee the accuracy or completeness of the calculation results in this application.ย  We are not responsible for any actions or decisions made based on the calculation results.

Screenshots

Triangle34 screens
Verify Calculator4 screens

Verdict

The call

The clearest difference is price: Verify Calculator at Free against Triangle3's $3.99. Triangle3's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Verify Calculator is free to download; Triangle3 costs $3.99 up front. Verify Calculator sells 1 one-off in-app purchase. Triangle3 asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.

Scorecard3 real differences ยท 5 level
Triangle3 versus Verify Calculator: the parameters behind the verdict, then further details
ParameterTriangle3Verify Calculator
Price$3.99Free โ€” better
Positive reviews40.0% of reviewsโ€”
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
MonetizationPaidโ€”
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 โ€” better15.4
Further details โ€” not scored
Size7 MB15 MB
Age rating4+17+
Developerryo sasakihiroshi mizuno

In-app purchases

None

Triangle3

No in-app purchases

1 purchases

Verify Calculator

One-time1
  • Remove Ads$5.99

Questions

Is Triangle3 free?
Triangle3 costs $3.99, with no in-app purchases.
Is Verify Calculator free?
Verify Calculator is free to download, with in-app purchases available.
Do Triangle3 or Verify Calculator have ads?
Verify Calculator shows ads; Triangle3 does not.
Which is updated more often, Triangle3 or Verify Calculator?
Triangle3 ships an update every 5 weeks, and Verify Calculator every 5 weeks. Most recently, Triangle3 was updated on September 13, 2026 and Verify Calculator on September 20, 2026.

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