Comparison

JCSys Reference vs CW Nuclear

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Link 11 message catalogue
  • Link 16 message catalogue
  • Link 16 NPG list
  • Link 22 message catalogue
  • Knowledge test
  • MODAF View reference
  • Acronym finder
Features
Read full description

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

About

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.

Highlights
  • Global nuclear plant directory
  • Plant owner and operator details
  • Reactor type information
  • License renewal and expiration dates
  • Interactive global map
  • Advanced search functionality
Features
Read full description

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

JCSys Reference4 screens
CW Nuclear4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
JCSys Reference versus CW Nuclear: the parameters behind the verdict, then further details
ParameterJCSys ReferenceCW Nuclear
PriceFreeFree
Rating4.8 (5 ratings) — better4.4 (11 ratings)
Positive reviews100.0% of reviews — better84.6% of reviews
Number of ratings511 — better
Update frequencyEvery 21 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size9 MB48 MB
Age rating4+4+
DeveloperGraeme WatsonCurtiss-Wright

Customer experience

JCSys Reference

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CW Nuclear

All ratings11 ratings
Positive81.8%
Neutral9.1%
Negative9.1%
Written reviews13 reviews
Positive84.6%
Neutral7.7%
Negative7.7%

In-app purchases

None

JCSys Reference

No in-app purchases

None

CW Nuclear

No in-app purchases

Questions

Is JCSys Reference free?
JCSys Reference is free to download, with no in-app purchases.
Is CW Nuclear free?
CW Nuclear is free to download, with no in-app purchases.
Which has better reviews, JCSys Reference or CW Nuclear?
JCSys Reference is rated higher. JCSys Reference averages 4.8 out of 5 from 5 ratings, while CW Nuclear averages 4.4 from 11 ratings.
Do JCSys Reference or CW Nuclear have ads?
Neither JCSys Reference nor CW Nuclear shows ads.
Which is updated more often, JCSys Reference or CW Nuclear?
JCSys Reference ships an update every 21 months, and CW Nuclear every 3 months. Most recently, JCSys Reference was updated on June 5, 2026 and CW Nuclear on September 7, 2026.

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