# Pollphase: Modbus Field — TCP Registers, Decoded

> TCP Registers, Decoded (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/pollphase-modbus-field/id6792402475 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Utilities, Productivity
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.0 · 38 MB
- Languages: American English
- Released: 2026-07-29
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/pollphase-modbus-field/id6792402475/reviews.md

## What is Pollphase?

Pollphase is a focused Modbus TCP workbench for commissioning technicians, controls engineers, integrators, students, and lab benches.

Save endpoints and register points, read function codes 01, 02, 03, and 04, decode signed and unsigned 16-bit values, 32-bit values, and floating-point values in common word orders, and retain a short local trend. Raw MBAP request frames remain visible so addressing assumptions can be audited. The built-in review simulator exercises every main screen without a PLC or network.

KEY FEATURES
- Modbus TCP MBAP request and response handling
- Function codes 01, 02, 03, and 04
- Saved endpoints and register maps
- UInt16, Int16, UInt32, and Float32 decoding
- ABCD and CDAB word-order comparison
- Scaling, offset, units, history, and audit trail
- Offline simulator for training and App Review
- Local PDF commissioning brief
- 120 original offline reference plates
- No account, ads, analytics, tracking, IAP, or subscription

Pollphase is a commissioning and diagnostics aid. Verify maps, addressing, scaling, byte order, write authority, equipment state, process safety, and site procedures before acting on any value or write.


## 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 2026-08-14.*