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Android Apps > Tools > Square to Round Developer
Square to Round Developer icon

Square to Round Developer

by Gellis apps · Tools · Free
On Google Play since June 2015 · Data updated 2026-10-21

Square to Round Developer is made and published by Gellis apps. AppBrain is an independent app data site and isn't affiliated with Gellis apps. The app name, icon, screenshots and description belong to Gellis apps and are shown as published on Google Play.

0.00
0 reviews
5,000+
Downloads
Free

Sheet metal developing tool for square/rectangles to rounds

Square to Round Developer Screenshot 1 of 5
Square to Round Developer Screenshot 2 of 5
Square to Round Developer Screenshot 3 of 5
Square to Round Developer Screenshot 4 of 5
Square to Round Developer Screenshot 5 of 5
Screenshots by Gellis apps, from the Google Play listing
View on Google Play

AppBrain's verdict

EstablishedNiche
Installs
6.4 thousand
Last updated
October 21, 2025
Ads
No ads
Size
4.90 MB

Square to Round Developer is a niche app, with 6.4 thousand installs. It doesn't have enough ratings yet to judge what users think.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Square to Round Developer for Android

★★★★★ Adam Zack · Sep 30, 2016
Very handy Saves a lot of time. Could you add in the bend angle for the pitch?
★★★★★ anony mouse · Dec 17, 2017
I think it is superb, my only suggestions for future versions would be a print facility and a calculated volume of the hopper.
★★★★★ Divyesh Jain · Oct 7, 2017
It is amazing. It saves alot of time. No confusion clear results. I really love this app.
★★★★☆ Yuyi Yu · Feb 2, 2017
It's good, if the round portion can be offset it was the best

Store listing

By Gellis apps, from Google Play
Description by Gellis apps Written by the developer, not by AppBrain. Click to read.
As a fabricator of 40+ years, the last 30 or so as the workshop manager, I have constantly used trigonometry etc. to calculate cones, segmental bends and much more. Nowadays I am constantly asked by the fabricators to calculate developed lengths etc. to save them the time and effort of laying it out. I have developed this app so that they can do it for themselves and therefore save “MY TIME”.


With this app you can quickly and easily develop patterns for square to rounds, rectangle to rounds, rounds to squares and round to rectangles. Simply choose the type of square to round you wish to develop, enter the required outside dimensions and material thickness then press develop. The developed pattern can then be marked onto the plate ready for cutting and shaping. Instructions on how to mark out completely by hand and how to mark developed pattern onto plate are included.

I hope that from your feedback/comments I will be able to add extra relevant features and amendments in future editions.

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
18
App size
4.90 MB
Needs Android
2.1+
Content rating
Everyone

Technologies used by Square to Round Developer

2 permissions · 18 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
October 25 update
Launched
June 2015
  • Oct 21, 2025UpdateVersion October 25 update
  • Dec 24, 2024Installs5,000+ installs
  • Sep 5, 2023UpdateVersion Sept 23 update
  • Oct 30, 2020UpdateVersion Oct 20 update
  • Jan 24, 2020Installs1,000+ installs
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
55
Play install range
5+ thousand
Launched
June 2015

Installs over time

Square to Round Developer has been installed 6.4 thousand times. Over the past 30 days, it has been installed 55 times.

Rankings

Google Play top charts

Google Play Rankings for Square to Round Developer

This app is not ranked

About the app and developer

About Square to Round Developer

Square to Round Developer is a tools app developed by Gellis apps.

Install Statistics

Square to Round Developer has been installed 6.4 thousand times. In the last 30 days, the app was installed 55 times.

User Ratings

The app has no ratings yet.

App Information

Square to Round Developer is freely available from Google Play. The app size is 4.90 MB. The latest version available is October 25 update. The last update was on October 21, 2025.

Technical Requirements

Square to Round Developer requires Android 2.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since June 2015.

App Performance Report

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Developer information for Gellis apps

Gellis apps

1954gellis@gmail.com

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