---
title: "Deflection - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Deflection is a powerful, versatile calculator for beams, 2D trusses, and 2D frames.  The interface is simple and intuitive, and the graphical output is state-of-the-art.  In addition to reaction, she"
---

# Deflection — United States
> Frames, Trusses, & Beams

![Deflection App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/63/ca/0b/63ca0b9f-d0f0-41b2-e454-3186c4e2691d/AppIcons-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Ketchep.com](https://apptail.io/developer/ketchepcom-KAZ) (United States)
**Category:** Productivity
**Rating:** 4.6/5 (115 ratings)
**Price:** Free
**Bundle ID:** com.glerok.shafter
**Store:** Apple App Store
**Country:** United States
**Version:** 11.0.0 (released 2025-03-19)
**Original Release:** 2013-07-16
**Languages:** English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Russian, Chinese, Spanish, Turkish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id670400597)
**AppTail Page:** [https://apptail.io/app/deflection-nJZ/united-states](https://apptail.io/app/deflection-nJZ/united-states)

## Deflection Description
Deflection is a powerful, versatile calculator for beams, 2D trusses, and 2D frames.  The interface is simple and intuitive, and the graphical output is state-of-the-art.  In addition to reaction, shear, bending moment, and deflection results, Deflection also computes internal shear and bending stress along the cross section and along the beam.

2D FRAME AND TRUSS EDITOR

The 2D editor is seamlessly integrated with the beam editor.  Draw arbitrary frame and truss structures and apply loads and constraints using the same simple interface as for beams.  You can visualize results directly within the 2D editor, or you can select a beam and get additional insights. 

INTERNAL STRESSES

Obtain internal bending and shear stress diagrams in addition to shear, bending, and deflection diagrams.  The internal stresses can be visualized along the length of the beam as well as along the vertical axis of the cross section using the beam editor.

CROSS SECTION EDITOR

Edit built-in cross sections.  Moment of inertia and area values are automatically calculated and applied to the rest of the beam calculations.

MORE FEATURES

• The built-in database contains more data for your reference and convenience.
• Apply beam self-weight optionally
• Unlimited design files
• Quick-start templates

CONTACT

We like to hear from you!  Please email contact@ketchep.com if you have any issues, questions, or comments.

## Deflection Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/29/8b/ff/298bff16-0025-3a02-477b-c3570d2c7e76/en-1284x2778-0.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/eb/27/ba/eb27ba3c-4792-4a07-3156-a0ba7cd1cdd4/b029ac4b-c61f-43d9-92cf-97f9fc8e89e5_en-1284x2778-1.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a7/82/0d/a7820df9-a177-cb41-fd70-5d5e75dd2d4d/458b528e-e08f-47f4-9f48-3be40c3429de_en-1284x2778-2.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fd/eb/80/fdeb80ce-4a5d-f1e3-27a6-a6dc25cfc1da/5590ff4e-c213-43ec-8acb-814737a19774_en-1284x2778-3.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/90/3c/6a/903c6a20-609e-89a9-d5e1-1b8c72720106/e7a84b65-0f18-42e9-a39a-f7fe4a1324fb_en-1284x2778-4.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e2/80/e9/e280e9c1-7f4c-4ed1-4521-b8bb134639c1/0e31e890-7ee7-4dce-94e2-604050d82770_en-1284x2778-5.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9d/48/1d/9d481d2c-e19f-5fbc-6304-4f69229b5332/c227d9c0-3a66-4506-a365-e9e2789a87d3_en-1284x2778-6.png/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/91/b5/80/91b58021-bc8c-33d0-59f8-d381d146bf19/a91627b0-9804-465f-bf11-2524b0fe8eb7_en-1284x2778-7.png/1284x2778.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ec/bb/61/ecbb6177-b921-ee9e-7d98-e0dab2b77a39/3313e0ef-22d1-465d-b10d-c56eae1fcf94_en-1284x2778-8.png/1284x2778.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/04/f3/6b/04f36b4a-ee29-160e-f80c-c810ac02d4a4/f9959811-cbcb-4fc7-af9e-414af4c49a5f_en-1284x2778-9.png/1284x2778.png)

## Deflection Rating Breakdown in United States
- 5 stars: 86 (75%)
- 4 stars: 18 (16%)
- 3 stars: 5 (4%)
- 2 stars: 2 (2%)
- 1 stars: 4 (3%)

## Deflection Reviews in United States

### ****- "Flexural Rigidity (EI)"
Would be great if there’s an option for different EI at different span.
-- TryAgainForNick, 2022-05-25

### ***** "I love this application so much."
If you are mechanical, civil engineer or chemical engineer or some, you should get this app. 

This is really accurate and compact to use at site and office. 

I really appreciate for this app to the developer. 

You are my HERO.
-- culown, 2021-11-16

### ****- "Great Application for quick accurate beam evaluations"
Great sanity check software before delving into a solid model evaluation
-- faader4100, 2019-08-18

### ***-- "Needs polishing"
Kinda klunky interface.  The calculator layout is poor.   Calculator needs means of entering scientific notation.  Missing aluminum extrusions.  Should have a way to favorite beam shapes and add user defined ones.   I prefer scientific notation normalized to be x.xx x10^x not xxx.x x10^x

Not sure why 10x length limitation.
-- 8Way, 2019-03-18

### ****- "it can be better"
it should have angle for better experiment
-- benyamin 5s, 2019-03-10

### ***-- "Good try, but half finished app!"
OK not meaning to put the dev down as this is a nice approach but I think the dev should have spent more time making the app workable than playing with the interface. The app is so called "version 5.0". One would assume from this it would have passed through four major iterations to get to this point. The app feels like beta release 0.9.
The following are missing.
1. Save and file functions
2. Undo and redo
3. A "help" or tutorial.
Also what would be nice would be the ability to design or draw beam sections instead of using the only ones offered. All that is provided is a database of standard sections downloaded off the internet, this would have been provided by version 3 or 4. 
The app feels like an engineer grad student trying to show off the engineering knowledge. Any of the five star reviews are either friends of the dev or purchasers of previous versions who are happy to see progress.
If I have misrepresented the dev and invite them to contact me and I will revise my review.
-- @DPKG, 2018-04-09

### ***** "Radians"
I just wanted to let you guys know that there is a flaw in the calculation of the theta value! It is 10 Times smaller than the actual value. There must be a bug for that output.
-- Poplar12354, 2017-11-16

### **--- "Structural Review and Shortcomings"
Love the app, great visual interface...but why not 50 and 65 KSI steel?

Today almost all structural steel is grade 50 KSI....this application is now limited to 36 KSI steel design. To make application useful it needs that upgrade.
-- RobertSteel54, 2016-04-10

### ***** "This is amazing"
This app should be given a award by the educators. Must for engineers✨👌🏻✨.
-- Sudh, 2016-04-08

### ****- "Nice beam calculator"
I have really enjoyed using this very nice beam calculator. I've tried several and this is, by far, the most elegant interface. I love the presentation of the diagrams and how quickly you can modify the situations. 
One constructive comment would be to add an option to use a custom rectangular shape. The material library includes concrete but you have to use a custom moment of inertia. Granted that's a super easy calc but it would be nice to stay in the app and just tap a length and width.
Love it, Love it though.
Thanks.
-- JPDavis1011, 2016-03-13

### ***** "The best structural engineering app"
By far, hands down, the best structural design app I've ever used. Some serious time was put into this app and it shows. Great job developer
-- Kane_n_able, 2015-10-22

### ****- "2 Complains"
First off great application, but I really hoped since it is a 5 dollar application for it to include hinges. Please add hinges it would help me a lot and isn't this hard for professionals like you. Second can you please let us set the pointer where we want in order to see the moment or deflection value, not only slide it since it is not very accurate with the slider! Much thanks
-- Fatteel, 2015-09-20

### ***** "Exceptional app!!"
This is a really great app for shear and moment diagrams. Very intuitive, fabulous interface! Tried using a similar applications on the web and this beats it hands down, glad I spent the money. I'd do it again in a heartbeat. One  recommendation would be to have moment in in-lb not just ft-lbs. Again great app, a winner!!!
-- thesnorlax, 2015-07-03

### ***** "So Far So Good!"
Just downloaded this and started playing around with it. Quite amazing how the graphics work. Nice that you can specify a structural steel beam shape.
-- TeddyTexas, 2015-06-13

### ***** "Nice app"
Very good
-- Kamran Poortaghi, 2015-05-01

### *---- "Poor user interface does not hold settings."
Just using this app is a challenge.

When I used ft-lb-in settings they always reverted to metric which was very frustrating.

You have to know everything in the calculations before starting. There is no table of properties for materials or shapes. There is no way to calculate Area moment of inertia for example. Essentially, this is just an equation solver for beams with an interface that is awkward to use and doesn't remember settings.
-- windnsails, 2015-02-07

### ***** "Great app!"
Perfect for when you want to check your work for accuracy...or just when you want to cut corners.
-- DardanBorovci, 2014-05-08

### ****- "It's nice but.."
I like it but it would be nice if it had the ability to see the data in a table. Also, could you add an option to switch the positive/negative convention of up and down? Thanks, and keep up the good work :)
-- - Batman, 2013-07-27

[View all Deflection reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Deflection Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Ecuador | Productivity | #21 |
| Top Paid | Colombia | Productivity | #43 |
| Top Paid | Peru | Productivity | #51 |
| Top Paid | Philippines | Productivity | #54 |
| Top Paid | Dominican Republic | Productivity | #57 |
| Top Paid | Mexico | Productivity | #64 |
| Top Paid | Argentina | Productivity | #64 |
| Top Paid | Lebanon | Productivity | #67 |
| Top Paid | Thailand | Productivity | #67 |
| Top Paid | Chile | Productivity | #73 |
| Top Paid | Brazil | Productivity | #92 |
| Top Paid | Türkiye | Productivity | #112 |
| Top Paid | Norway | Productivity | #116 |
| Top Paid | Poland | Productivity | #123 |
| Top Paid | Finland | Productivity | #126 |
| Top Paid | Indonesia | Productivity | #140 |
| Top Paid | South Korea | Productivity | #143 |
| Top Paid | Italy | Productivity | #161 |
| Top Paid | Israel | Productivity | #166 |
| Top Paid | Spain | Productivity | #170 |
| Top Paid | Hong Kong SAR China | Productivity | #171 |
| Top Paid | Belgium | Productivity | #182 |
| Top Paid | Taiwan | Productivity | #185 |
| Top Paid | Nigeria | Productivity | #186 |
| Top Paid | Russia | Productivity | #187 |
| Top Paid | Denmark | Productivity | #188 |
| Top Paid | South Africa | Productivity | #188 |
| Top Paid | Portugal | Productivity | #192 |
| Top Paid | Romania | Productivity | #197 |
| Top Paid | Greece | Productivity | #198 |
| Top Paid | Vietnam | Productivity | #207 |
| Top Paid | Sweden | Productivity | #211 |
| Top Paid | Hungary | Productivity | #211 |
| Top Paid | France | Productivity | #216 |
| Top Paid | Netherlands | Productivity | #226 |
| Top Paid | Saudi Arabia | Productivity | #234 |
| Top Paid | Austria | Productivity | #236 |
| Top Paid | Switzerland | Productivity | #238 |
| Top Paid | United Arab Emirates | Productivity | #242 |
| Top Paid | Kazakhstan | Productivity | #252 |
| Top Paid | Ecuador | Overall | #260 |
| Top Paid | Singapore | Productivity | #269 |
| Top Paid | Kuwait | Productivity | #269 |
| Top Paid | India | Productivity | #270 |
| Top Paid | China | Productivity | #276 |
| Top Paid | Egypt | Productivity | #276 |
| Top Paid | Czechia | Productivity | #286 |
| Top Paid | Canada | Productivity | #287 |
| Top Paid | Malaysia | Productivity | #288 |
| Top Paid | Japan | Productivity | #294 |
| Top Paid | Pakistan | Productivity | #312 |
| Top Paid | Germany | Productivity | #320 |
| Top Paid | New Zealand | Productivity | #324 |
| Top Paid | Ukraine | Productivity | #326 |
| Top Paid | Australia | Productivity | #348 |
| Top Paid | United Kingdom | Productivity | #350 |
| Top Paid | Ireland | Productivity | #390 |

## Deflection Discovered Keywords
- all beam designer
- deflection
- a-truss
- beam calculator lite

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## Deflection Available In
- [United States](https://apptail.io/app/deflection-nJZ/united-states)
- [Mexico](https://apptail.io/app/deflection-nJZ/mexico)
- [China](https://apptail.io/app/deflection-nJZ/china)
- [Thailand](https://apptail.io/app/deflection-nJZ/thailand)
- [Germany](https://apptail.io/app/deflection-nJZ/germany)
- [Brazil](https://apptail.io/app/deflection-nJZ/brazil)
- [Canada](https://apptail.io/app/deflection-nJZ/canada)
- [France](https://apptail.io/app/deflection-nJZ/france)
- [United Kingdom](https://apptail.io/app/deflection-nJZ/united-kingdom)
- [Ecuador](https://apptail.io/app/deflection-nJZ/ecuador)
- [Italy](https://apptail.io/app/deflection-nJZ/italy)
- [Spain](https://apptail.io/app/deflection-nJZ/spain)
- [Japan](https://apptail.io/app/deflection-nJZ/japan)
- [Switzerland](https://apptail.io/app/deflection-nJZ/switzerland)
- [Norway](https://apptail.io/app/deflection-nJZ/norway)
- [Argentina](https://apptail.io/app/deflection-nJZ/argentina)
- [South Korea](https://apptail.io/app/deflection-nJZ/south-korea)
- [Colombia](https://apptail.io/app/deflection-nJZ/colombia)
- [Philippines](https://apptail.io/app/deflection-nJZ/philippines)
- [Australia](https://apptail.io/app/deflection-nJZ/australia)
- [Chile](https://apptail.io/app/deflection-nJZ/chile)
- [Russia](https://apptail.io/app/deflection-nJZ/russia)
- [Taiwan](https://apptail.io/app/deflection-nJZ/taiwan)
- [Peru](https://apptail.io/app/deflection-nJZ/peru)
- [Türkiye](https://apptail.io/app/deflection-nJZ/turkey)
- [Netherlands](https://apptail.io/app/deflection-nJZ/netherlands)
- [Israel](https://apptail.io/app/deflection-nJZ/israel)
- [Hong Kong SAR China](https://apptail.io/app/deflection-nJZ/hong-kong)
- [Sweden](https://apptail.io/app/deflection-nJZ/sweden)
- [Singapore](https://apptail.io/app/deflection-nJZ/singapore)
- [Dominican Republic](https://apptail.io/app/deflection-nJZ/dominican-republic)
- [Denmark](https://apptail.io/app/deflection-nJZ/denmark)
- [Finland](https://apptail.io/app/deflection-nJZ/finland)
- [Poland](https://apptail.io/app/deflection-nJZ/poland)
- [Portugal](https://apptail.io/app/deflection-nJZ/portugal)
- [Belgium](https://apptail.io/app/deflection-nJZ/belgium)
- [Austria](https://apptail.io/app/deflection-nJZ/austria)
- [Czechia](https://apptail.io/app/deflection-nJZ/czechia)
- [Indonesia](https://apptail.io/app/deflection-nJZ/indonesia)
- [United Arab Emirates](https://apptail.io/app/deflection-nJZ/united-arab-emirates)
- [Uruguay](https://apptail.io/app/deflection-nJZ/uruguay)
- [Kuwait](https://apptail.io/app/deflection-nJZ/kuwait)
- [Hungary](https://apptail.io/app/deflection-nJZ/hungary)
- [India](https://apptail.io/app/deflection-nJZ/india)
- [Ireland](https://apptail.io/app/deflection-nJZ/ireland)
- [South Africa](https://apptail.io/app/deflection-nJZ/south-africa)
- [Lebanon](https://apptail.io/app/deflection-nJZ/lebanon)
- [Saudi Arabia](https://apptail.io/app/deflection-nJZ/saudi-arabia)
- [Ukraine](https://apptail.io/app/deflection-nJZ/ukraine)
- [Pakistan](https://apptail.io/app/deflection-nJZ/pakistan)
- [Nigeria](https://apptail.io/app/deflection-nJZ/nigeria)
- [Sri Lanka](https://apptail.io/app/deflection-nJZ/sri-lanka)
- [Cyprus](https://apptail.io/app/deflection-nJZ/cyprus)
- [Azerbaijan](https://apptail.io/app/deflection-nJZ/azerbaijan)
- [Algeria](https://apptail.io/app/deflection-nJZ/algeria)
- [Vietnam](https://apptail.io/app/deflection-nJZ/vietnam)
- [Egypt](https://apptail.io/app/deflection-nJZ/egypt)
- [Greece](https://apptail.io/app/deflection-nJZ/greece)
- [Iceland](https://apptail.io/app/deflection-nJZ/iceland)
- [Kazakhstan](https://apptail.io/app/deflection-nJZ/kazakhstan)
- [Bahrain](https://apptail.io/app/deflection-nJZ/bahrain)
- [Lithuania](https://apptail.io/app/deflection-nJZ/lithuania)
- [Madagascar](https://apptail.io/app/deflection-nJZ/madagascar)
- [Malta](https://apptail.io/app/deflection-nJZ/malta)
- [Malaysia](https://apptail.io/app/deflection-nJZ/malaysia)
- [New Zealand](https://apptail.io/app/deflection-nJZ/new-zealand)
- [Romania](https://apptail.io/app/deflection-nJZ/romania)
- [Slovenia](https://apptail.io/app/deflection-nJZ/slovenia)
- [Tunisia](https://apptail.io/app/deflection-nJZ/tunisia)
- [Armenia](https://apptail.io/app/deflection-nJZ/armenia)
- [Uzbekistan](https://apptail.io/app/deflection-nJZ/uzbekistan)
- [Brunei](https://apptail.io/app/deflection-nJZ/brunei)
- [Belarus](https://apptail.io/app/deflection-nJZ/belarus)

---

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