JCSys Reference vs MyCrimp
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
MyCrimp
Access up-to-date specifications for crimping hydraulic hoses and fittings. Search by hose style, coupling style, size, and crimper. Find correct product numbers with a cross-reference tool.
- Hydraulic hose and fitting crimp specifications
- Search by hose style, coupling style, size, and crimper
- Cross-reference for NRP Jones product numbers
- Setup and crimping guidance
- Up-to-date specification data
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The MyCrimp application provides users with the up to date specifications to properly crimp NRP Jones hydraulic hose and fittings. Users can search by hose style, coupling style, hose size and crimper. The application contains all the information required to properly setup and crimp the desired hose and fitting. In addition to crimp specifications, the app also includes a cross reference to assist in finding the correct NRP Jones product number.
Screenshots
Verdict
The clearest difference is update cadence: MyCrimp at every 5 months against JCSys Reference's every 21 months. MyCrimp also leads on rating (5.0 vs 4.8). JCSys Reference's advantage is iOS requirement (10.0 vs 13.0). 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.
MyCrimp holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 3 respectively.
JCSys Reference ships an update every 21 months, MyCrimp every 5 months. The most recent releases landed on June 5, 2026 and June 11, 2026 respectively.
| Parameter | JCSys Reference | MyCrimp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 21 months | Every 5 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 | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Graeme Watson | Custom Machining Services Inc. |
Customer experience
JCSys Reference
MyCrimp
In-app purchases
JCSys Reference
No in-app purchases
MyCrimp
No in-app purchases
