Conduit Kit: Bend, Fill, Box
Marks, cut length and box size
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Know the length of the piece before you cut it.
Pick the conduit and the kind of bend, type the dimensions — you get the marks measured from the end of the pipe and the cut length. Lay a tape on it and mark.
■ If it cannot be made, you hear it first
The app finds the dimensions where the arcs would overlap (at 45°, an offset smaller than 2.688 in) before you bend, and switches you to an angle that works in one tap.
■ Kinds of bend
90° stub, custom angle, offset, 3-point saddle, 4-point saddle and parallel runs. Marks can be measured to the start of the bend, the center of the arc, or the theoretical corner.
■ Bend radius against the code
Inside radius is shown with its source (NEC Chapter 9, Table 2 / Articles 342.24, 344.24, 358.24). The app does not reproduce tables — it cites them.
■ Not limited to a lookup table
Fill is computed from the conduit ID and the conductor OD, so any size works, listed or not. NEC Chapter 9, Table 1.
■ Match the app to your bender
Bend one 90° and measure the stub-up. That gives the real centerline radius of your tool, and every cut length after that matches what you actually make.
■ Keep it per job, hand it over on paper
Add bends and sizing to a job and the take-off sheet builds itself. Sticks are counted by packing the longest pieces first, so the count is never short the way total ÷ stick length would be. Export it as a PDF.
■ Works with no connection
Everything is computed on the device. Job records stay on this device only — they are not stored in iCloud, so they cannot move to a new phone.
■ About pricing
The 90° stub (cut length and the radius check) and conduit size selection are free, always. Offsets, saddles, custom angles, parallel runs, pull box sizing, bender calibration, job records and the take-off PDF are a one-time purchase. There is no subscription.
■ Units and standards
Switch between inch (NEC, North America) and mm (JIS, Japan). Conductor sizing is not offered in North America, because ampacity is given as a table (NEC Table 310.16) and showing only the voltage-drop half would give an answer that is too small.
What the app shows is a guide for installation. Compliance and the final call belong to the job's own standards and a licensed electrician.
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Information
- Seller
- RAINBOW TREE LLC
- Size
- 6.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Conduit Kit Pro $9.99
- Copyright
- © 2026 RAINBOW TREE LLC