Triangle3 Downloads & RevenueTriangle3 · App Store
Triangle3 is #51 in Productivity Paid in Japan and charting in 2 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
Developerryo sasaki
CategoryProductivity
Price5.99 AUD
Released
Rating★ 0.0 (0)
Version3.10.5
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)1k+ worldwide
📈Charting in a new country📈Entered the top 100✏️New screenshots📦Updated to version 3.10.5🆕First spotted by AppInsider📦Version 3.10.4🆕Released on the App Store
Full timeline · 15 events
- 📈Triangle3 charting in a new countryVietnam
- 📈Triangle3 entered the top 100Top Paid · Productivity · VN
- 📈Triangle3 new best rank in the overall chart: #112Top Paid · All Apps · JP
- ✏️Triangle3: new screenshots9 screenshots (was 9) · JP
- 📦Triangle3 updated to version 3.10.5Added support for iPhone Duo
- 📈Triangle3 entered the top 10Top Paid · Productivity · FR
- 📈Triangle3 entered the top 100Top Paid · Productivity · AU
- 📈Triangle3 charting in a new countryAustralia
- 📈Triangle3 new best rank in the overall chart: #116Top Paid · All Apps · JP
- 📈Triangle3 entered the top 100Top Paid · Productivity · FR
- 📈Triangle3 charting in a new countryFrance
- 📈Triangle3 entered the top 10Top Paid · Productivity · JP
- 🆕Triangle3 first spotted by AppInsider#69 in Top Paid · Productivity · Japan
- 📦Triangle3 version 3.10.4No release notes
- 🆕Triangle3 released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#51
Productivity PaidMeasured
Triangle3 on the App Store
App details
App ID
1643788233
Publisher
sasaki ryo
On the store since
Sep 2023
3 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
3
EN FR JA
Size
8 MB
Also listed in
Business
App privacy Measured
Triangle3 declares it collects no data at all — the rarest and most private label on the App Store.
Declared label
Data Not Collected
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Triangle3 downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Triangle3's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | ProductivityPaid | #51 |
 Vietnam | ProductivityPaid | #14 |
Apps near Triangle3 on the chart
Productivity Paid, around #51.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
3.7★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Productivity apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Triangle3
From recent reviews.
About Triangle3
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".
1¼B -> 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.
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".
1¼B -> 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.
Latest updates
3.10.5
Added support for iPhone Duo
3.10.4
Store changes
What Triangle3 changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New screenshots
9 screenshots (was 9)
