# PartDelta: BOM Revision — Compare Parts & Alternates

> Compare Parts & Alternates (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/partdelta-bom-revision/id6792422134 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Developer Tools, Business
- Price: $3.99
- Age rating: 4+
- Requires: iOS 17.0 · 124 MB
- Languages: American English
- Released: 2026-07-29
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/partdelta-bom-revision/id6792422134/reviews.md

## What is PartDelta?

PartDelta is a private BOM revision workbench for embedded teams, hardware startups, prototype labs, contract-manufacturing handoffs, educators, and serious electronics builders.

Compare before and after manufacturer part numbers, quantities, and unit costs by designator. PartDelta classifies added, removed, changed, and unchanged lines; totals per-assembly cost; records lifecycle state, alternates, notes, and explicit approval; and surfaces duplicate references, missing released MPNs, lifecycle exposure, unapproved changes, and major extended-cost steps. Import a practical CSV or start from the complete review project.

KEY FEATURES
- Before/after MPN, quantity, and cost comparison
- Added, removed, changed, and unchanged classification
- Per-line and assembly cost delta
- Lifecycle, alternate, approval, and evidence fields
- Duplicate designator and missing-MPN checks
- Lifecycle exposure and cost-step risk queue
- Flexible local CSV import
- Local BOM revision PDF packet
- 300 original offline technical plates
- No account, ads, analytics, tracking, IAP, or subscription

PartDelta compares the BOM data you enter or import. Confirm design intent, schematic and layout revision, qualification evidence, lifecycle and sourcing data, compliance, manufacturer specifications, and formal change approval in the system of record.


## Version history (last 1 release)

### 1.0 — 2026-07-29

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

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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 2026-09-10.*