Mometrix is a trusted test-prep publisher — study guides, video tutorials, static flashcards, and practice tests with test-taking strategies, at an affordable price, across a huge catalog. Trelos is a retention engine that teaches and drills NHA allied health content (like the CCMA) with spaced repetition so it sticks. Mometrix is review-and-practice; Trelos automates active recall. Different methods for different learners.
Mometrix has been a trusted name in test prep since 2002, with one of the largest catalogs anywhere — over 3,500 products across 1,500+ exams, including the full range of NHA certifications (CCMA, CPT, CET, and CPCT/A). Its model is classic and dependable: detailed "Secrets" study guides in print and digital, full-color physical study cards, an online course with video lessons and practice questions, several full-length practice tests, and an emphasis on test-taking strategies. It's affordable — study guides typically run about $40–$70 — and it's a solid choice for candidates who like to read a well-organized guide and drill practice tests. What it doesn't include is a spaced-repetition engine; the flashcards are static, and how much and when you review is up to you.
Trelos is a complete prep engine built around retention science, tuned to each NHA exam's specific domains. Rather than a study guide plus a stack of practice tests, it teaches each concept, drills it with exam-style questions, and then schedules your reviews using spaced repetition — resurfacing each item right as you're about to forget it. It adds hypercorrection (re-teaching confident wrong answers immediately) and interleaving (mixing domains the way the real exam does), so clinical patient care, phlebotomy, EKG, and safety content stay locked in through test day. It's mobile-first, designed for short, frequent sessions on a phone.
| Trelos | Mometrix | |
|---|---|---|
| Core model | Retention engine: teach → drill → auto-scheduled review | Study guide + video + practice tests |
| Spaced repetition | Core engine, automatic | No — static flashcards |
| Content delivery | Learn-by-doing cards & questions | Written study guide + video tutorials |
| Retention responsibility | Automated by the engine | Up to the student |
| Format | Mobile-first web app | Print + digital guides, online course |
| Price | Free to start; annual subscription | Affordable (~$40–$70 guides + course) |
| Best for | Making the material stick via active recall | Guide-based review & practice tests |
Choose Mometrix if you like learning from a clearly written study guide, you want printed materials and video tutorials, you value test-taking strategy tips, and you're on a tight budget. It's a dependable, affordable way to review content and practice — and it covers a huge range of exams if you're stacking certifications.
Choose Trelos if you want the material to actually stick rather than fade after you read it — a system that teaches, quizzes, and automatically brings each concept back at the right moment, with your confident misses re-taught on the spot. For a broad exam like the CCMA, where you're accountable for a wide surface of clinical and administrative content, automated retention is a real advantage over reading and re-reading.
Mometrix is a genuinely useful, affordable resource, and for many candidates a study guide plus practice tests is enough to pass. The gap it leaves is retention: it gives you the content and the practice, but it doesn't schedule your reviews or fight the forgetting curve for you. That's precisely what Trelos is built to do. If you're a disciplined reader who will self-manage your review, Mometrix is a strong value. If you want the studying-and-remembering handled as one system — especially on your phone, in short sessions — Trelos is designed for that. Some candidates use a Mometrix guide for a first pass and Trelos to lock it in.
Try Trelos free for your NHA examNo credit card. Feel the retention engine work in your first session.Read the full CCMA guide, CPT guide, CET guide, and CPCT/A guide for format, fees, and how to study.