# Pipe Offset & Cut Length — Rolling offsets & cut list PDF

> Rolling offsets & cut list PDF (iPhone/iPad app by RAINBOW TREE LLC.)

- Source: https://appshunter.io/ios/app/pipe-offset-and-cut-length/id6813725864 (this page in markdown: same URL + `.md`)
- Developer: [RAINBOW TREE LLC](https://appshunter.io/developer/1619997282)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 11 MB
- Languages: American English, Japanese
- Released: 2026-09-22
- Data updated: 2026-09-23
- User reviews in markdown: https://appshunter.io/ios/app/pipe-offset-and-cut-length/id6813725864/reviews.md

## What is Pipe Offset & Cut Length?

Rolling offsets, solved before you cut.

Pick the fitting and the size, type what you measured, and you get the cut length with the takeoff (Z in the standards) already subtracted from both ends. Mark the pipe and cut it.

■ If it will not go together, you hear it first
A positive number does not mean it can be assembled. When the socket depths would overlap, the app finds it before you cut and shows what does fit — a fitting with a smaller angle, or one size down.

■ Offsets that move in two directions
For a rolling offset, the app separates true offset, run, travel (center to center) and the roll angle. It works at 22.5° and 11.25° as well as 45°, and when the run you have is fixed, it can solve for the angle instead.

■ Every number carries its source
Welded fittings use the bend radius R = 38.1 x nominal size (inch) with ASME B16.9 for the 45° center-to-end; PVC DWV uses the published fitting dimensions. Japanese standards (JIS K 6739 / K 6743 / K 6777, JIS B 2301) are there when you switch regions. Tap the info button next to the answer to read where a number came from.

■ Fittings that are not in the table, you measure and add
Measure a fitting once and register it, and every answer after that matches the part in your hand. Thread engagement can be adjusted per size, one thread at a time.

■ Keep it per job, hand it over on paper
Add an answer to a job and it becomes a table: piece number, cut length, fitting, roll angle. Export it as a PDF or CSV. Register a fitting and the numbers on the paper are recomputed too.

■ 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. What leaves the device is your support messages, plus anonymous usage statistics and crash diagnostics (Firebase Analytics / Crashlytics).

■ About pricing
Cut length for a straight run between two fittings, the 45° offset in one plane, the 78 bundled fittings and the welded formula are free, always. Rolling offsets, 22.5° and 11.25°, solving for the angle, your own measured fittings and thread engagement, and job cut lists (PDF/CSV) are Pro. There is a one-time purchase, or monthly and yearly plans.

■ Units and standards
Switch between inch (ASME, North America) and mm (JIS, Japan). In North America the fittings become ASME B16.9 (welded) and PVC DWV, and the 45° center-to-end is read from the published table.

What the app shows is a guide for installation. The final call belongs to the job's own standards and a licensed fitter. The app does not reproduce standards documents or manufacturer catalogues — it cites the number and name of the standard, the maker and the revision, and computes dimensions from published values and formulas.

Monthly and yearly plans renew automatically. You can cancel in Settings > your name > Subscriptions on your iPhone. The one-time purchase does not renew.

Terms of Use: https://rainbowtree.work/app/terms
Privacy Policy: https://rainbowtree.work/privacy/haikan-kirisunpo.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pipe Offset Pro (Yearly) | $14.99 | per year |
| Pipe Offset Pro (Monthly) | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pipe Offset Pro (One-time) | $29.99 | one-time |



## Version history (last 1 release)

### 1.0.0 — 2026-09-23

No release notes.

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All apps by RAINBOW TREE LLC: https://appshunter.io/developer/1619997282

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-23.*