Validates knowledge of building Salesforce applications with Apex, Flow and Lightning Web Components, and testing and deploying them.
Platform Developer is 60 multiple-choice questions plus up to five unscored, in 105 minutes, closed book. Questions test Apex, SOQL, Lightning Web Components and the choice between declarative tools and code, often with a code snippet to read. We compared the main options on code-reading questions, explanations and price.
Most people should start with Salesforce's free Cert Prep modules and K2U's free 10-question sample. Use K2U's timed exams as your main bank and add one Udemy set from a second publisher.
| Practice test | Best for | Questions | Price |
|---|---|---|---|
 Platform Developer Free Sample Practice Exam | Free first look | 10 | Free |
| Platform Developer Practice Exams | Timed full exams | 700+ | $24 |
 Salesforce Platform Developer (PD1) Practice Tests- Summer26 | Second publisher's questions | 272 | $65 |
Four Cert Prep modules from Salesforce, one per exam section, with scenarios and flashcards. It reviews what each section tests rather than giving you a scored exam.
Great fit if you want free, official revision of the four exam sections before you buy practice questions.
Poor fit if you want scored, timed full exams; use K2U.
Ten random questions from K2U's Platform Developer bank, in timed or untimed mode, after a short sign-up form. It previews the paid exams and is not a full run.
Great fit if you want to see K2U's question style before paying.
Poor fit if you want volume or a full timed run; use K2U's paid exams.
Four 60-question exams, 11 topic exams by section and a quick-review set, with explanations and documentation links. Candidates say it runs heavier on Visualforce than the real exam.
Great fit if you want timed full exams plus drills by exam section, with each answer linked to Salesforce documentation.
Poor fit if you want a free check first; take the free sample above.
Four tests of about 65 questions plus a 10-question set, with screenshots, Trailhead links and explanations. Updated October 2026 for Summer '26.
Great fit if you want a second publisher's questions, with screenshots and Trailhead links, after K2U.
Poor fit if you are on a budget; K2U costs $24 and has more questions.
Salesforce: Platform Developer exam guide ↗Trailhead: Platform Developer study trail ↗Reddit: Visualforce on FoF PD1 tests ↗Reddit: FoF scores vs actual PD1 score ↗Reddit: PD1 exam updated for Agentforce? ↗
Yes, in part. Trailhead has free Cert Prep modules with scenarios and flashcards, and K2U gives 10 free random questions after a sign-up form. Neither is a full-length exam.
Reports are mixed. One candidate called the questions 10-15% easier than the real exam, another said they are broad and unnecessarily tricky, and one scored in the 80s on them and still failed.
There is no official number. Candidates commonly work through all of one publisher's full exams and add a second publisher, reviewing every miss and rebuilding the code in a Developer Edition org.
Sixty multiple-choice questions plus up to five unscored, in 105 minutes, with some questions asking for more than one answer. Practice sets that mix single-answer and multi-answer items match it best.