# Ductilab: Materials Test — Stress-strain test reduction

> Stress-strain test reduction (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/ductilab-materials-test/id6792825042 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Utilities, Education
- Price: $3.99
- Age rating: 4+
- Requires: iOS 17.0 · 88 MB
- Released: 2026-07-30
- Data updated: 2026-08-11
- User reviews in markdown: https://appshunter.io/ios/app/ductilab-materials-test/id6792825042/reviews.md

## What is Ductilab?

Ductilab: Materials Test is a focused, fully on-device app. Materials-test reduction studio for engineering stress-strain, 0.2% offset yield, modulus fit, UTS, elongation, toughness, specimen correction, and repeat comparison.

KEY FEATURES
- Load-extension CSV import
- Stress-strain reduction
- Modulus, yield, UTS and toughness
- Specimen-photo evidence
- Editable sample data and CSV import
- Side-by-side scenario comparison
- Local PDF evidence export
- Fifty-three original offline reference plates

ONE-TIME AND PRIVATE
- One paid download; no subscription or in-app purchase
- No account, advertising, analytics, tracking, or developer-operated backend
- Core features and bundled content work offline
- Work remains on device unless you deliberately share or export it through an Apple system interface

Stress-strain calculations do not certify material performance. Confirm specimen geometry, machine calibration, test standard, units, and qualified engineering interpretation.


## Version history (last 1 release)

### 1.0 — 2026-07-30

No release notes.

## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

---

*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 2026-08-11.*