# Bestway Slide Rule — API flange specs in seconds

> API flange specs in seconds (iPhone/iPad app by Bestway Oilfield.)

- Source: https://appshunter.io/ios/app/bestway-slide-rule/id6803227215 (this page in markdown: same URL + `.md`)
- Developer: [Bestway Oilfield](https://appshunter.io/developer/6803227217)
- Category: Utilities, Business
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 13 MB
- Languages: American English
- Released: 2026-08-25
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/bestway-slide-rule/id6803227215/reviews.md

## What is Bestway Slide Rule?

The Bestway Slide Rule puts API flange dimensions in your pocket.

Browse by nominal size and pressure rating, identify an unknown flange from measured O.D., bolt circle, and hole count, or search ring numbers and bolt circles. Switch between slide ruler, sealing face, and neck elevation views. Display inches or millimeters, fractions or decimals.

Works offline after install. No account required. Optional Call, Email, and Website buttons open your phone’s apps.

Powered by Bestway Oilfield.
Contact: info@bestwayoilfield.com · +1 (281) 452-2525
https://www.bestwayoilfield.com/


## Version history (last 2 releases)

### 1.0.1 — 2026-08-26

Updated disclaimer.

### 1.0 — 2026-08-25

No release notes.

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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 2026-08-26.*