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

  • AP Exams

    After each test, we looked beyond the score and reviewed the type of each mistake. Over time, AP Physics C: Mechanics became one of the most organized parts of my AP Exams preparation. I became much more comfortable asking questions in class. The preparation felt calmer than I expected.

    Ayaka Murakami

  • AP Exams

    I was doing questions for AP English Language on my own but never had a steady routine. We could make the workload lighter during busy weeks at school or university. My written answers became shorter, clearer and easier to follow. Thanks to everyone who supported me.

    Lei Shen

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. The group never had more than six students, so it was easy to stay involved. Knowing the criteria from the start made the whole task less vague. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Even in a group lesson, the tutor knew where each of us stood. I was really happy with the lessons.

    Kennedy Holloway

  • AP Exams

    I used the question bank regularly to return to weaker topics. The feedback I received on AP Comparative Government was clear and practical. My mock results gradually became more consistent. The preparation felt calmer than I expected.

    Anqi Wang

  • AP Exams

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Choosing questions by topic made my practice time much more useful. My confidence improved along with the results. I'm genuinely thankful to my tutor for being patient.

    Emilia Richter

  • AP Exams

    The feedback I received on AP Physics 1 was clear and practical. After a while, the questions started to feel much more familiar.

    Beatriz Cabrera

  • AP Exams

    The feedback I received on AP Computer Science Principles was clear and practical. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. My written code answers became much more organized. My confidence improved along with the results. I started noticing the reason for a mistake much faster. Thanks to TestPrep for helping me stay on track.

    Bastien Lambert

  • AP Exams

    Knowing the topic wasn't always enough; I had to learn which information the question actually needed. Thanks to TestPrep for helping me stay on track.

    Esteban Beltran

  • AP Exams

    I chose AP Physics 1 this year and wanted to build a solid base from the beginning. I never felt awkward asking the same thing again. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I'm glad I worked with my tutor through this process.

    Chase Whitaker

  • AP Exams

    The feedback I received on AP Calculus AB was clear and practical. My preparation became much more regular and easier to track.

    Pavel Holm

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. I used the question bank regularly to return to weaker topics. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Wouter Keller

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. The preparation felt calmer than I expected.

    Yifan Gao

  • AP Exams

    Anxiety became more visible as the exam got closer. Joining lessons willingly was one of the clearest signs for us. The lessons started being followed without constant reminders from us. The tutor's close attention to weaker areas gave us confidence. We were pleased with the support we received.

    Chase Connelly

  • AP Exams

    My written answers became shorter, clearer and easier to follow. It was an intense period, but it was worth it.

    Angus Templeton

  • AP Exams

    I finally understood what was going wrong in AP Biology. I never felt awkward asking the same thing again. Once I understood the reasons behind the facts, the questions felt less random. I became much more comfortable asking questions in class. I left the exam feeling that I had done what I could. The preparation felt calmer than I expected.

    Jiyeon Guk

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. The preparation felt calmer than I expected.

    Sangho Kang

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. After each test, we looked beyond the score and reviewed the type of each mistake. I found a better balance between regular school and exam preparation. Thanks to TestPrep for helping me stay on track.

    Agustina Solis

  • AP Exams

    The lessons where I found the bug myself were the ones I remembered best. It was an intense period, but it was worth it.

    Johan Holm

  • AP Exams

    Having the lesson move at my pace made the process feel much easier. Over time, AP Physics C: Mechanics became one of the most organized parts of my AP Exams preparation. There was no overnight miracle, but the progress was easy to see. Thank you to the tutor who stayed supportive until the end.

    Marissa Harrington

  • AP Exams

    I finally understood what was going wrong in AP Statistics. We focused more on understanding what the problem asked than memorizing formulas. I found a better balance between regular school and exam preparation.

    Sooyoung Kang

  • AP Exams

    Breaking AP Seminar into smaller pieces worked much better for me. Keeping the sources organized saved a lot of time later. I became much more comfortable asking questions in class.

    Brodie McKenzie

  • AP Exams

    Over time, AP Physics 2 became one of the most organized parts of my AP Exams preparation. I found a better balance between regular school and exam preparation.

    Dylan Lawrence

  • AP Exams

    What annoyed me most was losing easy points because I rushed. I could work on exam technique without falling behind in class. Knowing what to study reduced a lot of the stress. I was really happy with the lessons.

    Rohit Chawla

  • AP Exams

    I finally understood what was going wrong in AP Psychology. I wasn't trying to learn new topics at the very last minute.

    Yuki Ishii

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500+ students supported|4.9/5 rating

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