Law 18 vs Concacaf Refereeing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Law 18
Master soccer's Laws of the Game with this quiz-based study app. Focus on specific laws, practice game scenarios, and track your progress with a spaced repetition algorithm. Optional modules cover US Soccer and specialized topics like VAR.
- Quiz-based study of Laws of the Game
- Study by Law or Quick Quiz
- Game scenario testing
- Spaced repetition algorithm
- Progress tracking by law
- Optional US Soccer modules
- Offline access
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Train smarter, referee better. Law 18 helps soccer referees at every level master the IFAB Laws of the Game through focused, quiz-based study. Study Your Way - Quick Quiz — randomized questions across all 17 Laws - Study by Law — focus on the areas you need most - Scenarios — game-situation questions that test real decision-making - Daily Challenge — one question a day to keep your knowledge sharp Built for Retention Questions are spaced using a proven review algorithm that prioritizes the topics you struggle with, so you spend time where it matters. Track Your Progress See your accuracy by law, identify weak areas, and watch your streak grow over time. US Soccer Referees Optional question sets cover US Soccer-specific topics including Referee Assessment Program (RAP), short-sided games, build out lines, heading restrictions, environmental conditions, and health & safety. Supplemental Topics Go beyond the 17 Laws with additional modules covering VAR, futsal, and other specialized areas. More Features - iCloud sync across all your devices - Exam mode to simulate test conditions - Bookmark questions for later review - Dark mode support - Works offline with bundled content Train like the ref you want to be.
Concacaf Refereeing
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CONCACAF Refereeing is the official platform for international match officials representing CONCACAF. Every tool you need to prepare, learn, and develop — in one app. - AI match analysis: break down key decisions with an AI co-pilot built for referees - Video hub: match clips and training content curated by CONCACAF's Referees Department - Laws of the Game quizzes: sharpen decisions, stay current with IFAB updates - Meetings & seminars: join briefings, access agendas and recordings - Fitness tracking: sync wearables, stay match-ready - Career profile: assignments, evaluations, and certifications, always up to date Access is limited to officials registered with the CONCACAF Referees Department. Officiate with confidence. Develop with purpose.
Screenshots
Verdict
The clearest difference is in-app purchases: Concacaf Refereeing at none against Law 18's 2. Concacaf Refereeing also leads on ads (none vs shown) and iOS requirement (16.4 vs 26.0). On price and device support 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. Law 18 sells 2 in-app purchases, starting at $1.99 per month. Concacaf Refereeing asks for nothing beyond the download.
| Parameter | Law 18 | Concacaf Refereeing |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 23 MB | 133 MB |
| Age rating | 12+ | 17+ |
| Developer | Mattas.net Ltd | Algo Dynamics Srl |
In-app purchases
Law 18
- Remove Ads$1.991 Month
- Remove Ads$14.991 Year
Concacaf Refereeing
No in-app purchases








