QuickBend: Conduit Bending

Review by eFreeware

Most conduit bending calculators ask you for a bend and a measurement and hand back a number. QuickBend takes a different route: it works from the centerline radius, factoring in the shoe and bender you are using along with the conduit type and its diameter, so the figures it produces reflect the actual geometry of the bend rather than a generic multiplier. That is the detail that separates it from a pocket calculator and a printed chart, and it is the reason I would look at this app before anything else in the category.

It is built for people who bend conduit or tubing for a living, but the developer makes room for apprentices and DIY users as well, and nothing about the concept locks out someone who is new to the trade. The app costs $6.99, carries no ads and offers no in-app purchases. It has been on Google Play since November 2016 and sits at a 4.2 average from 394 ratings, with more than 50,000 installs.

A tool for the job site, not the office

The clearest way to describe the audience is anyone who has to put a bend in a piece of conduit and wants the marks to land in the right place the first time. That covers a journeyman running offsets along a wall, an apprentice working through a saddle for the first time, and a homeowner wiring a shop who would rather not waste three sticks of pipe learning by trial and error.

What I like about the scope is that it does not assume you already know which bender is in your hand. The bender, shoe size and conduit type sit on the same screen as the calculation, so the setup stays with the bend you are working on rather than in a separate settings menu. If you would rather not tie a bend to a specific tool, there is a multiplier method option that skips the bender selection entirely.

The trade-off of that focus is that the app is a bending calculator. If your work involves conduit, the narrowness is a virtue; the app does one job and the whole design is bent toward doing it quickly.

Seventeen bend types, from offsets to segmented 90s

The bend library is the heart of the app. Offsets are covered in several forms, including rolling offsets, matching bends, matching centers and parallel offsets. Saddles come in three-point and four-point versions. There are 90-degree bends, kicks with 90s, matching bend and matching center kicks, parallel kicks and a forward variant of the parallel kick. Compound 90s are handled for circular, rectangular and square obstructions, and there is a segmented 90 for the cases where a single sweep will not do.

That list matters because the awkward bends are usually where a hand calculation goes wrong. A rolling offset or a compound 90 around an obstruction involves more trigonometry than most people want to do on a ladder, and having the app carry it is the point. Each bend also comes with documentation, so the reasoning behind a figure is available rather than hidden behind a result.

The bend diagrams themselves are drawn by the same engine that produces the measurements, which means the picture you see and the number you get come from one source. For anyone who thinks visually about a bend before committing to it, that consistency is more useful than a static illustration.

Laying out a run and marking the conduit

Single bends are only part of the picture. QuickBend lets you lay out several bends on one length of conduit and returns a measurement for each mark along it. On a run with a couple of offsets and a kick, that means the marks can be worked out together instead of one at a time with the risk of losing track of where you are.

Marks can be flipped individually or as a set, which is the kind of small control that saves a re-measure when a bend has to be reversed to fit the way the conduit is being fed. It is a detail rather than a headline feature, but it is the sort of thing that shows the app was designed by someone who has stood in front of a bender.

Measurements can be toggled between inches and centimeters, so the app is not tied to one set of units. For anyone working from drawings in metric and bending in imperial, or the other way around, that switch removes a conversion step from the process.

Input methods, QuickCheck and the bender library

There are two ways to enter data, and you can move between them depending on the bend. A number pad is there for people who know the figure they want, while the Press & Slide slider lets you sweep through values and watch how the bend responds. The slider is the more interesting of the two because it turns the input into a form of exploration: you can comb through the possibilities of a bend rather than committing to a number and seeing what comes back.

QuickCheck is built into both. When a bend cannot be made, the text changes color to red; when it is unlikely to work, it goes orange. The colors appear in the input styles as well as the results, so the feasibility of a bend is visible before you tap on an amount. That is a sensible place to put the warning, since it is the moment when you would otherwise be about to commit to a figure that will not work.

The bender library is the other half of the setup. Benders are specified using information from the manufacturers, and you can pin the ones you use most so they are quick to reach without scrolling through the rest. The Bender Specs screen shows the centerline radius, deduct, gain and setback for each tool, along with travel and radius adjustment for any degree of bend up to 90, and those specifications can be edited. For anyone who has had to look up a deduct on a manufacturer's sheet, having it in the same app as the calculator is a real convenience.

What it costs and what you get for it

QuickBend is a one-time purchase of $6.99. There are no ads, and there are no in-app purchases, so nothing inside the app is gated behind a second payment. That is a straightforward arrangement, and for a tool that gets used on the job it is easy to weigh against the cost of a wasted length of conduit.

The app is rated Everyone, and the recent update added the Southwire Maxis (MHB4000) bender alongside a thumbnail change for the iToolco B2 Rapid Fire. Updates of that kind matter more here than in most categories: a calculator is only as good as the bender data behind it, and a library that gains new tools is a library that stays useful as manufacturers change their lineups.

How it compares with the alternatives

The obvious comparison is a free calculator from an app store. Those exist, and for a simple offset they can be perfectly adequate. Where QuickBend argues for itself is in the measurements: the centerline radius algorithm, the shoe and bender data, and the fact that the bend diagrams come from the same engine. A free tool that ignores the shoe radius will be close enough for some bends and wrong for others, and the difference tends to show up on the jobs where you least want it.

The second alternative is the traditional one: a paper chart, a multiplier and a pencil. That approach has the advantage that plenty of electricians have used it for decades. What it cannot do is account for a specific bender's shoe or flag a bend as impossible before you make it, and it cannot lay out several bends on one stick and hand you the marks.

The third option is a general-purpose construction calculator, which will handle conduit alongside a dozen other trades. Those are useful, but they tend to treat a bend as a formula rather than a geometry problem tied to a particular tool, and the conduit-specific features here have no real equivalent in them. If bending is a regular part of your work, the specialization is the reason to pick this over a broader calculator.

A calculator worth paying for if conduit is your trade

QuickBend is a focused, paid tool with a clear idea of what it is for. The centerline radius approach, the seventeen bend types, the multi-bend layout on a single conduit and the editable bender specifications add up to something more considered than a formula in a box. The $6.99 price, the absence of ads and the absence of in-app purchases make it easy to judge on its merits rather than on how much more it will ask of you later.

It suits electricians who bend regularly, apprentices who want the numbers checked while they learn, and DIY users who would rather not scrap conduit. The 4.2 average from 394 ratings suggests a generally satisfied user base, though it also suggests the app has not pleased everyone. If bending conduit is a routine part of your work, the calculation engine and the bender library are the reasons to install it; if it is an occasional task, a free calculator and a chart may cover what you need.

What's new in version 5.1.3

• Updated iToolco: B2 Rapid Fire thumbnail image. • Added Southwire: Maxis (MHB4000) bender.