TestPrep
Student Results

Real Score Improvements. Our Students’ Results.

See individual students' starting and later SAT, AP, ACT and GMAT scores (anonymized), with their study periods and program formats. Outcomes vary by student.

500+
Students Supported
Score Improvements

Before and After Results

Real score improvements from students in our SAT, AP, ACT and GMAT programs.

SAT
Türkiye
Before
1180
After
1420
+240
Elif A.4 months
SAT
Türkiye
Before
1250
After
1410
+160
Emre K.2 months
ACT
Türkiye
Before
24
After
34
+10
Selin L.3 months
AP Calculus
Türkiye
Before
3
After
5
+2
Murat T.6 months
GMAT — old GMAT (200-800 scale)
Türkiye
Before
580
After
720
+140
Can Y.4 months
SAT
Türkiye
Before
1180
After
1420
+240
Ayse C.3 months
ACT
Türkiye
Before
27
After
33
+6
Berkay C.2 months
AP Physics
Türkiye
Before
2
After
5
+3
Defne P.8 months
Featured Successes

Detailed Case Studies

In-depth stories from our students who achieved outstanding results.

SAT
Before
1180
After
1420
+240
points
4 monthsPrivate Tutoring

I was devastated after my first SAT attempt. The diagnostic test identified my weak points in Reading and Math, and my tutor created a focused plan. In 4 months I went up 240 points and got accepted to UCLA!

Elif Arslan
Istanbul, Türkiye
Accepted to UCLA
GMAT
Before
580
After
720
+140
points
5 monthsPrivate Tutoring

After trying other programs, TestPrep Istanbul finally worked. The personalized approach to Data Sufficiency and Critical Reasoning made all the difference. Now I'm doing my MBA at Wharton.

Can Yilmaz
Ankara, Türkiye
Accepted to Wharton MBA
ACT
Before
24
After
34
+10
points
3 monthsSmall Group

The Science section was my biggest weakness. My tutor taught me efficient data interpretation strategies. The small group format kept my motivation high and I went from 24 to 34!

Selin Kaya
Izmir, Türkiye
Full Scholarship to Rice University
What Our Students Say

Reviews From Around the World

Reviews from SAT, AP, ACT and GMAT students and their parents.

SAT
Türkiye

"TestPrep Istanbul helped me increase my SAT score by 240 points! The tutors are incredibly knowledgeable and the personalized approach made all the difference."

Ayse Celik
Student
3 months | Private Tutoring | 1180 -> 1420
SAT
Türkiye

"As a parent, I appreciate the regular progress reports and flexibility. My son went from struggling to confident in just 4 months."

Mehmet Yildirim
Parent
4 months | Small Group
ACT
Türkiye

"The practice tests were incredibly realistic. On exam day I felt completely prepared and scored 34!"

Selin Kaya
Student
3 months | Private Tutoring | 24 -> 34
GMAT
Türkiye

"After trying other programs, TestPrep Istanbul finally worked. Their GMAT strategies are next level. I got into Wharton!"

Can Yilmaz
MBA Candidate
5 months | Private Tutoring | 580 → 720 (old GMAT, 200-800 scale)
AP
Türkiye

"I took 4 AP courses with TestPrep Istanbul and scored 5 on all of them. The tutors know exactly what the College Board is looking for."

Defne Polat
Student
8 months | Physics, Calc, Chem, Bio
SAT
Türkiye

"Worth every penny. Our investment in our daughter's education paid off with a full scholarship. Thank you TestPrep Istanbul!"

Ali Demir
Parent
6 months | Private Tutoring
IB
Türkiye

"I was struggling with IB Math HL. My tutor explained concepts step by step and I scored 7 on my IA!"

Beren Ozkan
Student
4 months | Private Tutoring | Math AA HL
IELTS
Türkiye

"I went from 5.5 to 7.5 in Writing. The Speaking strategies really worked."

Kerem Aydin
Student
3 months | Private Tutoring | Overall 8.0

Student reviews

2,000 approved reviewsApproved student reviews across all our courses

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. I stopped doing a huge amount one week and nothing the next. Using the mark scheme to review my own answer was surprisingly helpful. Thanks to TestPrep for helping me stay on track.

    Abbey Fletcher

  • A-Level

    After the first attempt, we looked for a calmer plan for the retake. The plan was adjusted when school exams became busy. Returning to actual gaps instead of restarting everything saved time. We were able to follow the mock results regularly. Preparation looked calmer and more organized closer to the exam. The overall experience was positive from beginning to end.

    Luana Rezende

  • A-Level

    It was good to see confidence returning over time. Online lessons made it possible to continue without losing time on travel. We were pleased with the support we received.

    Sloane Talbot

  • A-Level

    After my first attempt, I wanted the second round of preparation to feel more organized. I finally understood what was going wrong in A-Level Business. Going back to the lesson recordings helped when I forgot a small step. With data-heavy questions, I began reading the task before getting lost in the table. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Poppy Mercer

  • A-Level

    Over time, A-Level Biology became one of the most organized parts of my A-Level preparation. One bad mock no longer made me want to drop the whole plan. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. My confidence improved along with the results. I wasn't trying to learn new topics at the very last minute. It was an intense period, but it was worth it.

    Zheng Feng

  • A-Level

    When I started preparing for A-Level, I wasn't sure what order to study things in. I left the exam feeling that I had done what I could.

    Juliette Lambert

  • A-Level

    Everyone recommended different resources and I kept switching between them. I never felt awkward asking the same thing again. Predicting the output helped me catch small logic errors. I'm glad I worked with my tutor through this process.

    Meilin Li

  • A-Level

    I chose A-Level Business this year and wanted to build a solid base from the beginning. Experiencing the exam format beforehand made test day much less stressful. I started noticing the reason for a mistake much faster. A big thank you to my tutor for all the support :)

    Tove Kovac

  • A-Level

    I was taking A-Level Chemistry at school, but getting used to the exam questions took time. The group never had more than six students, so it was easy to stay involved. I wasn't trying to learn new topics at the very last minute. The preparation felt calmer than I expected.

    Mariana Alarcon

  • A-Level

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. My tutor usually asked me to explain my thinking before stepping in. The mocks showed where my time was actually being lost. Connecting examples back to the main point made my writing more consistent. I left the exam feeling that I had done what I could. I'm glad I worked with my tutor through this process.

    Can Korkmaz

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. Breaking A-Level Computer Science into smaller pieces worked much better for me. The plan changed with my mock and homework results, so the work never felt random. The lessons where I found the bug myself were the ones I remembered best. There was no overnight miracle, but the progress was easy to see. Thanks to everyone who supported me.

    Kavya Bhatt

  • A-Level

    I was taking A-Level Physics at school, but getting used to the exam questions took time. Experiencing the exam format beforehand made test day much less stressful. I became much more careful with graphs, experiments and data-based questions. My tutor usually asked me to explain my thinking before stepping in. Thank you to my tutor and the TestPrep team.

    Santiago Godoy

  • A-Level

    Our daughter needed regular support with A-Level Sociology. The lessons started being followed without constant reminders from us. We would recommend the program to students and families in a similar situation.

    Grant Benson

  • A-Level

    I understood that the portfolio needed to show the process, not only the finished piece. I'm genuinely thankful to my tutor for being patient.

    Jimena Rosales

  • A-Level

    Over time, A-Level Further Mathematics became one of the most organized parts of my A-Level preparation. A quick check after each answer helped me catch small mistakes. I left the exam feeling that I had done what I could.

    Evie Whitlam

  • A-Level

    The feedback I received on A-Level Psychology was clear and practical. I started tracking the type of mistake, not just the number of questions I completed. Connecting examples back to the main point made my writing more consistent. Knowing what to study reduced a lot of the stress. I started noticing the reason for a mistake much faster. The preparation felt calmer than I expected.

    Ramiro Solis

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. After a while, the questions started to feel much more familiar.

    Chloe Nolan

  • A-Level

    I finally understood what was going wrong in A-Level Mathematics. A quick check after each answer helped me catch small mistakes. My mock results gradually became more consistent.

    Mert Akbulut

  • A-Level

    Breaking A-Level Business into smaller pieces worked much better for me. The plan changed with my mock and homework results, so the work never felt random. I learned to separate the information needed for a decision from the extra detail. There was no overnight miracle, but the progress was easy to see. After a while, the questions started to feel much more familiar. I was really happy with the lessons.

    Hendrik Kuiper

  • A-Level

    I was doing questions for A-Level History on my own but never had a steady routine. I never felt awkward asking the same thing again. I stopped listing facts in essays and started building an actual argument. Thank you to my tutor and the TestPrep team.

    Mariano Valdez

  • A-Level

    Our daughter needed regular support with A-Level Chemistry. The small group offered peer learning without making it hard to ask questions. Flexible scheduling helped during a demanding school year. We were able to follow the mock results regularly. The overall experience was positive from beginning to end.

    Luisa Brouwer

  • A-Level

    We noticed that the resources kept changing during independent study. The overall experience was positive from beginning to end.

    Madison Merritt

  • A-Level

    The feedback I received on A-Level Physics was clear and practical. By the end of each lesson, I knew what I was supposed to do during the week. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I started noticing the reason for a mistake much faster. After a while, the questions started to feel much more familiar. It was an intense period, but it was worth it.

    Haruto Yamamoto

  • A-Level

    I finally understood what was going wrong in A-Level English Literature. I stopped choosing answers by feel and started looking for evidence in the passage. My mock results gradually became more consistent.

    Kristine Mendoza

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500+ students supported|4.9/5 rating

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