Free study guides live today
Every exam between you and the next step.
Koydo organizes exam preparation around the goal it serves — seven groups covering admissions, licensure, and professional credentials, with free topic-by-topic study guides live today.
What is Koydo Exam Prep?
Koydo Exam Prep is the adult and admissions wing of the Koydo learning portfolio, built by KOYDO LLC. Instead of selling each exam as a separate product, Koydo groups exams by the goal they serve: getting into college, entering graduate school, earning a clinical license, a finance credential, a project or technology certification, a commercial driving or trade license, or finishing secondary school. CDL prep is available today at cdl.koydo.app. Free topic-by-topic study guides — reference reading with worked explanations — are available for the SAT, ACT, GRE, LSAT, MCAT, NCLEX-RN, PMP, CPA, CDL, IELTS, and TOEFL.
Seven groups, one goal each
Pick the goal in front of you. Each group collects every exam that serves it.
SAT · ACT · PSATCollege AdmissionsThe path to a college seat, organized.
GRE · GMAT · LSAT · MCATGraduate SchoolGraduate school entry, one study path.
NCLEX-RN · USMLENursing & MedicalClinical boards, prepared calmly.
CPA · CFA · Series 7Accounting & FinanceProfessional finance credentials, one shelf.
PMP · CompTIA · AWSProject & Tech CertificationsCertifications that move careers.
CDL · Electrician · HVAC · PlumbingTrades & LicensingLicensed hands, steady work.
Matura · Abitur · A-Levels · BaccalauréatSchool-Leaving ExamsExams that end school, worldwide.
Free study guides
Topic-by-topic reference guides: free reading material.
CDL prep is available today at cdl.koydo.app
- CDLCommercial Driver's License
- NCLEX-RNNational Council Licensure Examination — Registered Nurse
- IELTSInternational English Language Testing System
- GREGraduate Record Examinations
- SAT
- MCATMedical College Admission Test
- LSATLaw School Admission Test
- PMPProject Management Professional
- CPACertified Public Accountant
- TOEFLTest of English as a Foreign Language
- ACT
One membership, every exam group
Koydo exam prep is part of the Koydo portfolio. See what a membership covers across programs, apps, and prep.