Mometrix vs Sitonce for the PTCE

Mometrix and Sitonce are both exam-preparation products. Neither is the thing you need if you have not met PTCB’s separate eligibility requirements. Check that first.

Compare what you get

Mometrix is the larger multimedia bank

Mometrix lists 1,150 practice questions, 60 lessons, 320-plus flashcards, and more than 20 videos, with progress tracking. Its subscription page lists $99.99 per month and a seven-day money-back guarantee. The larger bank may help if repeated practice is how you learn, while videos give another route into calculations and dosage topics.

Because billing is monthly, check the renewal and cancellation terms and estimate how long you will study. A short subscription can work for final preparation; it costs more if an exam delay stretches the schedule.

Sitonce offers a fixed twelve-month course

Sitonce is $79 for twelve months and includes lessons across four PTCE domains, worked explanations, printable study materials, and five timed full-paper rehearsals. Its listed bank is smaller. The fixed price is easier to plan around if your exam date may move; the trade-off is fewer questions and a smaller video library.

A full-length mock rehearses pacing, but the official PTCE uses a scaled passing score and includes unscored pretest questions. A practice score is not a converted PTCB score or a promise of a result. Use it to find topics to revisit.

Do not confuse prep with eligibility

PTCB requires a PTCB-Recognized Education/Training Program or qualifying work experience to apply for the CPhT credential. A test-prep subscription does not automatically satisfy the training route. Confirm a program’s recognition through PTCB itself. Neither Mometrix nor Sitonce should be treated as eligibility education unless PTCB explicitly lists the exact program.

How to choose

• Choose Mometrix if you want its larger question bank and prefer videos, flashcards, and subscription access.
• Choose Sitonce if you want a one-time payment, printable materials, and five timed mock papers.
• Try free samples before paying. Read several explanations and see whether they explain why distractors are wrong.
• Confirm your eligibility before spending on exam prep.

Sitonce publishes this comparison and is not affiliated with Mometrix. Our take: Mometrix has the larger listed bank and more video instruction. Sitonce is the lower-cost, longer-access option with fixed mock exams. Pick the format you will finish, not the largest number printed on a product page. Features and prices were checked on September 30, 2026; confirm current terms before you purchase.