JCSys Reference vs CW Nuclear
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JCSys Reference
This application provides a comprehensive reference for Tactical Data Links (TDL) and MODAF. It includes detailed catalogues for Link 11, Link 16, and Link 22 messages, along with network participation group information and an acronym finder.
- Link 11 message catalogue
- Link 16 message catalogue
- Link 16 NPG list
- Link 22 message catalogue
- Knowledge test
- MODAF View reference
- Acronym finder
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A handy Tactical Data Link (TDL) and MODAF Reference application. Features include: * Link 11 (M Series) message catalogue and descriptions * Link 16 (J Series) message catalogue and descriptions * Link 16 Network Participation Group (NPG) list * Link 22 (FJ Series) message catalogue and descriptions * Knowledge Test - test your knowledge of the Message Numbers and names * MODAF View Reference guide * Acronym Finder - search our list of common TDL Related acronyms
CW Nuclear
This app provides a comprehensive directory of global nuclear power plants, detailing owners, operators, reactor types, and key dates. It features a global map for plant location and an advanced search function for easy data retrieval.
- Global nuclear plant directory
- Plant owner and operator details
- Reactor type information
- License renewal and expiration dates
- Interactive global map
- Advanced search functionality
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The CW Nuclear app is a must have if you work in the nuclear industry. It is a comprehensive listing based on the 26th edition of the Commercial Nuclear Power Plant directory by Curtiss-Wright that provides concise data on all operating nuclear plants throughout the world. The app highlights plant owners and operators, reactor types, license renewal applications, and license expiration dates. All plants are linked to a global map enabling you to instantly find its location. The advanced search function enables you to search by plant, country, owners, operators and reactor types. Data for U.S. plants includes: • Owners • Operators • Websites and Phone Numbers • Plant Name and Location • NRC Docket Numbers • Reactor Type • Original Licensed MWt • Uprated MWt • Design Capacity MWe • A/E/C Data • Cask Model and Vendor info • All key dates associated with each plant Data for international plants includes: • Status (Operating, Under Construction, Suspended) • Location • Owner • Reactor Information • Commercial operation dates
Screenshots
Verdict
The clearest difference is update cadence: CW Nuclear at every 3 months against JCSys Reference's every 21 months. JCSys Reference's advantage is rating (4.8 vs 4.4) and review sentiment (100% vs 85%). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
JCSys Reference holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 5 and 11 respectively. Written reviews point the same way: 100% of JCSys Reference's written reviews are positive against 85% of CW Nuclear's.
JCSys Reference ships an update every 21 months, CW Nuclear every 3 months. The most recent releases landed on June 5, 2026 and September 7, 2026 respectively.
| Parameter | JCSys Reference | CW Nuclear |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | 4.4 (11 ratings) |
| Positive reviews | 100.0% of reviews — better | 84.6% of reviews |
| Number of ratings | 5 | 11 — better |
| Update frequency | Every 21 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 9 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Graeme Watson | Curtiss-Wright |
Customer experience
JCSys Reference
CW Nuclear
In-app purchases
JCSys Reference
No in-app purchases
CW Nuclear
No in-app purchases







