# RRTool

> RRTool (iPhone/iPad app by Bay Area Instruments Inc..)

- Source: https://appshunter.io/ios/app/rrtool/id6443753484 (this page in markdown: same URL + `.md`)
- Developer: [Bay Area Instruments Inc.](https://appshunter.io/developer/1649065401)
- Category: Utilities, Food & Drink
- Price: Free
- Age rating: 4+
- Requires: iOS 14.0 · 5 MB
- Languages: English
- Released: 2022-10-31
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/rrtool/id6443753484/reviews.md

## What is RRTool?

RRTool is the extended features companion app to your RR1090 digital refractometer and similar Bay Area Instruments devices. It communicates via encrypted BLE with your device, mirroring its buttons and providing extended functionalities such as: cloud spreadsheet logging of your measurements, enabling of ATC for Brix, QR code generation and device firmware upgrades.


## Version history (last 4 releases)

### 1.0.10 — 2023-11-23

Add support for SS-Two.

### 1.0.9 — 2023-04-01

Prevent screen lock while doing device firmware upgrade. Bug fix for Device Page, post firmware upgrade.

### 1.0.8 — 2023-03-03

Including support for our new in-line recording refractometer device SS-one.

### 1.0.4 — 2022-10-31

No release notes.

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## Related topics

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

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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 2026-06-01.*