# JCSys Reference — user reviews

> 4 indexed App Store user reviews of JCSys Reference by Graeme Watson, rated 4.80/5 from 5 ratings.

- Source: https://appshunter.io/ios/app/jcsys-reference/id584340426/reviews
- App overview in markdown: https://appshunter.io/ios/app/jcsys-reference/id584340426.md
- Rating breakdown: 5★ 4 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (4 lowest-rated)

### 4/5 — Excellent

*2012-12-11*

Please add NPG reference for Link 16. Thanks!

### 5/5 — Great resource

*2025-01-08*

I use this app all the time as a quick reference for J messages and NPGs.

### 5/5 — A TDL fountain of knowledge

*2013-10-02, version 1.2*

Very helpful for referring to messages on L11 and L16. Pity I can't take my iPhone into the bunker!

### 5/5 — JCSys TDL App

*2012-12-10, version 1.1*

What an excellent app, just what I have been waiting for. Very professional and very functional, I will certainly be using this app on a daily basis. Thanks very much.

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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 2026-06-05.*