GMAT Official Prep
8.3#3 in exam prep apps$299.99 one-timeFree planAndroidiOSWeb
VisitGMAT Official Prep vs Lockin
What both publish
| Fact | GMAT Official Prep | Lockin |
|---|---|---|
| Adaptive practice | Yes | The site says its PPS algorithm uses study history to serve difficult topics more often. |
| Exam scope | single_exam | multiple_exam_types |
| Free plan | Yes | Yes |
| Headquarters | Washington, DC, United States | UK and Gibraltar |
| Intended users | The Official Guide is described as a comprehensive self-study resource, while Official Practice Questions are for candidates seeking focused practice in specific content areas. | The terms say the service is intended for students in Years 9–13, typically ages 13–18, studying UK GCSEs and A Levels. |
| Platform support | Web via the Official Prep Platform | Web, iOS, Android |
| Purpose | GMAT Official Prep products help candidates become familiar with the exam format, question types, pacing, and scoring. | Lockin is a revision platform for UK GCSE and A-Level students. |
| Support | The help center directs users who cannot locate an activation code to contact Customer Care. | Lockin lists email support at [email protected] and says replies usually take 24–48 hours. |
GMAT Official Prep plans
- Free Official Starter KitFree
- Premium GMAT Study Collection 2026-2027 Bundle$299.99, paid once
Lockin plans
- FreeFree
- Pro£2.99, paid once
- Super£4.99, paid once
Pick GMAT Official Prep if…
It suits GMAT candidates who want official materials for self-study, realistic scoring, and structured revision. Focused practice options fit learners targeting particular content areas, while the Official Guide supports broader preparation.
Pick Lockin if…
You want what its maker publishes above — check its page for the details.