DIN TECH LABS · SOFTWARE FOR HEALTHCARE CAREERS

We build the tools professionals use to pass, practice, and get to work.

DIN Tech Labs designs focused, exam-grade software for the healthcare workforce. Our first product, CPO Certify, is built by people who've worked the front desk — not just the back end.

See CPO Certify Our approach

QUESTION 14 / 60 · OCULAR ANATOMY

Which structure is responsible for adjusting the eye's focus on near objects?

A Ciliary body

B Sclera

C Conjunctiva

92%Accuracy

04:12Time left

Blueprint-mapped

Progress synced live

Mapped to the official CPO exam blueprint Built with input from working opticians Timed practice, real exam conditions Designed for the front desk, not a boardroom Mapped to the official CPO exam blueprint Built with input from working opticians Timed practice, real exam conditions Designed for the front desk, not a boardroom

OUR FIRST PRODUCT

CPO Certify

A focused prep app for the Certified Paraoptometric (CPO) exam, administered by the AOA's Commission on Paraoptometric Certification — timed practice tests, blueprint-mapped questions, and progress tracking that tells you exactly where you stand before test day.

100 / 90 Scored questions / minutes allowed

56% National pass rate, 2024 (902 candidates tested)

4 Official content domains covered

Source: AOA Commission on Paraoptometric Certification, 2024 Year in Review

Blueprint coverage

Every question is mapped to the exam's four official domains — Clinical Principles & Procedures (36%), Professional Issues (24%), Ophthalmic Optics & Dispensing (20%), and Contact Lenses (20%) — so nothing you study is a guess.

Timed mock exams

Full-length practice runs under real exam conditions, so test day feels like the tenth time, not the first.

Missed-question review

Every wrong answer becomes a flashcard automatically, so weak spots get more reps without extra effort.

Progress analytics

A clear readout of readiness by topic, so you know exactly what to review before scheduling the exam.

Live

Currently used to prep for the AOA Certified Paraoptometric (CPO) exam.

Request access

SEE IT IN ACTION

What studying actually looks like.

Real screens from the app — not mockups. Every question, diagram, and progress number below is pulled straight from CPO Certify running on-device.

CPO Certify home screen showing the diagnostic pre-test card, quick actions for Quick 10 / Practice hub / Modules / Progress, and a study-progress bar

Interactive labeled eye anatomy diagram inside a lesson, with tappable structures like cornea, iris, lens, and retina

Practice question screen tagged Clinical Testing & Procedures, asking why over-the-counter supplements should be asked about specifically, with a flag button and answer choices

Study Modules screen grouped by exam domain, showing Clinical Testing & Procedures at 52.2% weight with a list of modules and time estimates

Progress screen with mastery bars for each of the five exam domains, a Start mock exam card, and the candidate eligibility checklist

Flashcard review screen showing a spaced-repetition question card asking what photochromic adaptive lenses do, with a Tap to reveal prompt

Searchable terminology reference screen listing ophthalmic abbreviations like OD, OS, OU, VA, cc, sc, and PH with their definitions

Practice hub screen listing Quick 10, weak-area drill, missed and flagged review, flashcards, terminology drill, and drill-by-domain options with percentages

WHY IT'S DIFFERENT

Not another generic quiz bank.

Most study apps are a recycled trivia bank wrapped in a paywall. CPO Certify is built the other way around: start from the CPC's own exam outline, then build the app that outline demands.

	CPO Certify	Typical study apps
Content structure	27 modules & 180 questions mapped directly to the CPC's published exam outline, weighted to match real domain proportions	A generic trivia bank not tied to any specific exam blueprint
Lessons	7 interactive SVG lessons — tap-to-explore anatomy, refractive-error and visual-field simulators, an EOM gaze trainer	Static text pages or PDFs
Practice tests	Full 120-item mock exam, 90 minutes, scored + unscored items mixed exactly like the real form	Untimed quizzes that don't mirror real exam conditions
Weak-area review	Missed questions auto-become spaced-repetition flashcards (SM-2), plus an auto-selected weak-area drill	No follow-up — you retake the same static quiz
Pass-likelihood estimate	An honest, uncertainty-ranged estimate against a raw-score target you choose — never a fake "predicted score"	Vague or unexplained "readiness" percentages
Your data	Stored only on your device. No account, no server, no analytics, nothing transmitted anywhere	Accounts required, usage tracked, data sold or shared with advertisers
Who built it	Written by people who've worked the front desk, against the CPC's own outline and handbook	Generic content, not written for this specific certification

Not affiliated with, endorsed by, or produced by the AOA or the Commission on Paraoptometric Certification. All lesson content and practice questions are original, written against the CPC's publicly available exam outline.

HOW WE WORK

Built from the exam room out.

Built by people who work the front desk

Every product starts with a real workflow problem, not a whiteboard idea. We build what we wish we'd had.

Exam-grade, not generic

No recycled trivia banks. Content is structured around the actual certification blueprint, top to bottom.

Privacy-first by default

Your study data is yours. We design with data minimization and security as defaults, not add-ons.

WHAT'S NEXT

More tools, one blueprint at a time.

CPO Certify is the first release. Here's what's in the lab.

Shipped

CPO Certify

Certified Paraoptometric exam prep.

In development

App 02

Another front-office certification, reimagined the same way.

Concept stage

App 03

Details coming as it takes shape.

Let's build what's next.

Questions, feedback, or want early access to CPO Certify? Reach out.

support@dintechlabs.com