# Calibration Keeper

> Calibration Keeper (iPhone/iPad app by Trihydro Corporation.)

- Source: https://appshunter.io/ios/app/calibration-keeper/id1465790622 (this page in markdown: same URL + `.md`)
- Developer: [Trihydro Corporation](https://appshunter.io/developer/920601995)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 22 MB
- Languages: American English
- Released: 2019-06-30
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/calibration-keeper/id1465790622/reviews.md

## What is Calibration Keeper?

Calibration Keeper is a product of Trihydro Corporation designed to help teams capture, store, and report data related to the calibration of equipment used in the field for Leak Detection and Repair.


## Version history (last 5 releases)

### 3.4.3 — 2025-12-03

Bug fixes and improvements

### 3.4.2 — 2025-11-19

Bug fixes and improvements

### 3.3.0 — 2023-11-21

CalibrationKeeper version 3.30 adds a requirement for a PDF or image to be uploaded with a COA, various improvements, and bug fixes.

### 3.1.0 — 2022-07-20

Usability updates

### 3.0.0 — 2022-03-10

CalibrationKeeper has been updated with general product enhancements and stability improvements.

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## More apps by Trihydro Corporation

- [LeakTracker Pro](https://appshunter.io/ios/app/leaktracker-pro/id1195225812)
- [Fenceline Pro](https://appshunter.io/ios/app/fenceline-pro/id1256000688)
- [Field Vision Platform](https://appshunter.io/ios/app/field-vision-platform/id1471034946)

All apps by Trihydro Corporation: https://appshunter.io/developer/920601995

## Related topics

[calibrex](https://appshunter.io/ios/topics/calibrex)

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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 2026-05-15.*