# SampleChain: COC Field Log

> Samples, Custody & PDF Forms

Canonical page: [https://chrome-stats.com/d/id6792272112](https://chrome-stats.com/d/id6792272112)

## Overview

- **ID:** `id6792272112`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** SHINOBU MIYAHIRA
- **Category:** Business
- **Version:** 1.0
- **Last updated:** 2026-07-28
- **First published:** 2026-07-28
- **Size:** 925 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/samplechain-coc-field-log/id6792272112)
- **Privacy policy:** [https://goonobu-dot.github.io/batch18-pages/samplechain/privacy.html](https://goonobu-dot.github.io/batch18-pages/samplechain/privacy.html)

## Description

Build chain-of-custody forms in the field: samples, custody events and lab-ready COC PDFs - no double entry, no connection needed.

SampleChain is an offline chain-of-custody worksheet for environmental and industrial-hygiene field work.

COC FORMS IN THE FIELD
- Create a COC with client, site, laboratory, sampler and cooler details
- Add sample rows fast: sample ID, matrix, location, collection time, containers, preservation and requested analysis
- Free for 3 COC records (10 samples each) - every feature included

CUSTODY THAT HOLDS UP
- Relinquished, Received and Shipped events with names, initials and times - entered by you
- Saved events are never overwritten: corrections are appended as their own entries, so your sequence stays intact

REUSE WHAT YOU TYPE
- Lab presets and organization defaults fill repeated fields automatically

LAB-READY OUTPUT
- COC PDF with the full sample table and custody sequence
- CSV export of samples for your project files

PRIVATE BY DESIGN
- 100% offline. No account, no cloud, no analytics

PRICING
Free for up to 3 COC records with 10 samples each; existing records stay viewable and exportable forever. Pro (unlimited COCs and samples) is an auto-renewing subscription - $19.99/month or $149.99/year - with a 7-day free trial. It renews unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in Settings > Apple ID > Subscriptions.

For record-keeping only. Entries are user-reported and not identity-verified.

Privacy Policy: https://goonobu-dot.github.io/batch18-pages/samplechain/privacy.html
Support: https://goonobu-dot.github.io/batch18-pages/samplechain/support.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #1,485,874 — Overall

## Similar extensions and apps

- [Interactive COC](https://chrome-stats.com/d/id6471626063)
- [ECC eCoC](https://chrome-stats.com/d/id6450546338)
- [SGS eCOC](https://chrome-stats.com/d/id6445818273)
- [CustodyChain by Percipient](https://chrome-stats.com/d/id6743327264) — 5.00 / 5
- [Lab Coat - Lab Management](https://chrome-stats.com/d/id6751504647)
- [SampleServe Field App](https://chrome-stats.com/d/id1639620264)
- [PriorityLab](https://chrome-stats.com/d/id944810145) — 3.30 / 5
- [eCOC+](https://chrome-stats.com/d/id6538714605) — 5.00 / 5
- [ForneyField](https://chrome-stats.com/d/id1592128605) — 4.50 / 5
- [Cell Culture and Lab Assistant](https://chrome-stats.com/d/id6761197700) — 5.00 / 5
- [LabCodex](https://chrome-stats.com/d/id6757193746)
- [HeadLight Materials](https://chrome-stats.com/d/id1517107239) — 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6792272112)