Five steps, and none of them is “read the whole guide again”.
Certly is designed for sessions of ten to fifteen minutes. The loop is always the same: find the weak domain, work it, then check the projected score to see whether it moved.
Pick your exam
On first launch you choose one of the four certifications. Certly loads that exam’s domains, its official weights and its question bank, and sizes simulations to its real item count. Switch tracks whenever you like in Settings. Progress, streaks and simulation history are kept separately for each exam, so nothing gets mixed up.
Answer ten and get a baseline
Quick Study deals ten questions weighted like the real exam. As soon as you have answered a few, the dashboard replaces the empty state with a projected score on the 100 to 1000 scale and tells you how many points sit between you and 720. That sentence is the whole product in one line.
Attack the domain that costs you most
Domain progress is sorted so the expensive gaps are obvious: each row carries the domain’s exam weight next to your accuracy. Work that domain directly, or study a scenario end to end on the Architect Foundations track. Anything you miss is scheduled to return tomorrow, then at three, seven and fourteen days.
Practice the writing, not just the reading
Every exam in the program tests prompt and context engineering, and that is the part multiple choice teaches worst. The Prompt Lab has you rewrite weak prompts, assemble strong ones from blocks, and submit your own for a rubric score. It runs entirely on device.
Sit a full simulation, then read the report
A simulation is the same length as the real exam, drawn in the same domain proportions, with explanations held until the end. The report gives you a scaled score, a pass or fail against 720, and a breakdown per domain. Repeat until the trend line stops surprising you.
A useful session is shorter than you think.
Five questions is enough to keep the streak alive. Ten is a Quick Study. The daily challenge is one hard question chosen from your exam’s bank, the same one for everybody that day. None of these need a login, a network connection or a plan.
What matters is the return trip. A question you missed comes back on schedule, and the projected score only moves when you get it right the second time.

What Certly is, and what it isn’t.
These are not real exam questions
Every item is written independently against the published exam guide. Certly has no access to the live item bank, and any product that claims otherwise should worry you.
The scale is modeled, not official
Certly applies the published domain weights and the published 720 line to your answers. It is a good proxy for readiness, not a prediction of your actual result.
Registration happens elsewhere
You book and pay for the exam through Anthropic and Pearson VUE. Certly never handles exam fees and is not a testing center.
It is independent
Certly is not affiliated with, endorsed by, or officially associated with Anthropic. Claude and the certification names are trademarks of Anthropic, used here descriptively.