A few months ago, my friend Marcus came to me absolutely panicked. He had just made it through the first round of interviews at a Big 4 accounting firm and found out the next step was an online aptitude assessment. He had never taken one before, had no idea what to expect, and had about two weeks to prepare.
I had been through the same thing a year earlier and knew exactly how he felt. Aptitude tests are one of those things that sound simple until you are actually sitting in front of a timed numerical reasoning section and your brain goes completely blank.
I told him to check out TestHQ. He did. He passed. And now he will not stop talking about it, so I figured I should finally sit down and write the full review he has been asking me to do for months.
What TestHQ Actually Is
Before I get into Marcus’s experience, let me give you a quick picture of the platform itself.
TestHQ is an online practice test platform run by WikiJob Ltd, a career-focused publisher based in London. It is not affiliated with the actual test providers like SHL or Korn Ferry, which they are upfront about. What it offers instead is a large library of practice questions designed to mirror the format, difficulty, and style of the real assessments you will encounter in job applications.
The platform covers a wide range of tests. If your employer uses SHL, Saville, Korn Ferry, Thomas GIA, Watson Glaser, or pretty much any other common assessment provider, there is something on TestHQ for you. There are also school entrance exam preps like CAT4, ATI TEAS, and Accuplacer for students going through that route.
Marcus’s Story: Two Weeks to Pass a PwC Assessment
Marcus was applying for an advisory role. After the first-stage interview went well, he got the email telling him to complete an SHL Verify assessment within five days. It included numerical reasoning, verbal reasoning, and a deductive reasoning section.
He had about four days of solid prep time before the deadline hit.
He started on TestHQ the same evening I recommended it. His first impression was that the interface was straightforward and he could find what he needed quickly. He went straight to the SHL practice section and started with the numerical reasoning tests.
His first practice score was not great. He said he got roughly 60 percent right on the first attempt, which felt discouraging. But this is actually where TestHQ started to prove its value.
Every question came with a detailed explanation of the correct answer. Not just “the answer is C,” but a full breakdown of the reasoning process. Marcus told me he spent more time reading those explanations than he did doing the actual tests, and that is probably why his scores improved so fast.
By day three, he was consistently scoring above 80 percent on the numerical reasoning sections. The verbal reasoning clicked faster for him since he reads a lot anyway, but the deductive reasoning took the most work. The practice questions on TestHQ were structured very similarly to what he encountered in the real test, which he said made a noticeable difference in how calm he felt going into it.
He passed the assessment. He moved on to the final round. He got the job.
What Works Really Well
Let me break down the things Marcus and I both think are genuinely good about TestHQ.
The depth of the explanations is the biggest one. A lot of free resources online will give you practice questions but the answer keys are sparse or nonexistent. TestHQ takes the time to walk you through the logic behind each answer, which is how you actually build the skill rather than just memorizing answers.
The variety of tests is also genuinely impressive. Marcus only needed SHL prep, but I noticed when I was browsing the platform that they cover everything from Ravens Progressive Matrices to McQuaig Mental Agility to BKSB, which is used heavily in UK apprenticeship and vocational routes. The CAT4 section is broken down by level (Level X through Level G) which is useful for parents helping younger students prepare for grammar school or independent school exams.
The fact that the questions are regularly updated also matters more than it sounds. Aptitude test publishers tweak their formats occasionally, and a platform that is not keeping up with those changes is giving you stale prep material. TestHQ explicitly highlights that their content is current, and based on Marcus’s experience, the similarity between the practice material and the real test supports that.
What Could Be Better
Marcus had one main criticism and it is worth mentioning.
He felt the platform could do a better job of tracking progress over time in a visual way. When you are doing multiple sessions across several days, it would be helpful to see a simple dashboard showing your score trend, weak areas, and how much time you have spent on each section. He had to keep track of that himself in a notes app, which felt like an unnecessary workaround.
Also, if you are looking for completely free unlimited access, this is not that. There is a free trial to get started, but the full test library requires a paid plan. Marcus felt the price was reasonable given what he got out of it, but it is worth knowing going in.
Who Should Actually Use TestHQ
If you have a job assessment coming up at any major employer, particularly in finance, consulting, law, or tech, this is worth your time and money. Companies like PwC, KPMG, Accenture, and similar firms use standardized aptitude tests precisely because they want a consistent data point across all candidates. The test is not going away and you cannot charm your way through a timed reasoning section.
TestHQ is also a solid choice for students going through school or college entrance testing. The CAT4 and ACCUPLACER sections are detailed enough to be genuinely useful, and the TEAS prep is relevant for anyone applying to nursing or allied health programs.
If you are someone who does well under pressure and just needs to know what format to expect, even a few hours on TestHQ could make a real difference. If you are someone who struggles with numerical or abstract reasoning, a proper preparation run through the platform over one to two weeks could genuinely change your outcome.
My Final Take
Marcus passed his PwC assessment after four days of focused prep on TestHQ. I used a similar approach a year ago and ended up in a job I genuinely enjoy. Neither of us walked in as naturally gifted test takers. We just showed up prepared.
That is what a good prep platform should do. It should give you the tools to close the gap between where you are and where you need to be. TestHQ does that in a clear, well-organized, and honest way.
If you have an aptitude test coming up and you are not sure where to start, I would go to testhq.com, run through the free trial, and see how you feel after your first practice session. Chances are you will want to keep going.