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

    At the beginning, we knew very little about the AP Exams system as parents. A good connection with the tutor developed quite quickly. Flexible scheduling helped during a demanding school year. The tutor's close attention to weaker areas gave us confidence. Preparation looked calmer and more organized closer to the exam. We quickly felt that the tutor was a good match.

    Brianna Freeman

  • AP Exams

    Over time, AP Statistics became one of the most organized parts of my AP Exams preparation. A quick check after each answer helped me catch small mistakes. My preparation became much more regular and easier to track.

    Saki Nishimura

  • AP Exams

    Breaking AP World History into smaller pieces worked much better for me. I started noticing the reason for a mistake much faster.

    Peng Luo

  • AP Exams

    Discussing why the other choices were wrong helped more than I expected. I'm genuinely thankful to my tutor for being patient.

    Seojun Ma

  • AP Exams

    Over time, AP English Language became one of the most organized parts of my AP Exams preparation. I learned not to spend the same amount of time on every line of a long text. My confidence improved along with the results.

    Marcelo Borges

  • AP Exams

    As the exam got closer, I wasn't sure what I should actually review. My tutor could see my reasoning and usually found the source of an error quickly. Connecting examples back to the main point made my writing more consistent. We could make the workload lighter during busy weeks at school or university. Lesson times could fit around school, university or work. I'm glad I worked with my tutor through this process.

    Thijs Neumann

  • AP Exams

    The feedback I received on AP Computer Science A was clear and practical. I never felt awkward asking the same thing again. The lessons where I found the bug myself were the ones I remembered best. I went into the exam much calmer than I would have before. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Zora Lindberg

  • AP Exams

    Over time, AP Research became one of the most organized parts of my AP Exams preparation. My confidence improved along with the results.

    Zhihao Wang

  • AP Exams

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. I started tracking the type of mistake, not just the number of questions I completed. Source questions became easier once I noticed how small details affected the mark. It was an intense period, but it was worth it.

    Lihua Dong

  • AP Exams

    The feedback I received on AP Art History was clear and practical. By the end of each lesson, I knew what I was supposed to do during the week. I began using more specific examples when explaining my ideas. I left the exam feeling that I had done what I could. I found a better balance between regular school and exam preparation. Thank you to the tutor who stayed supportive until the end.

    Nuria Rojas

  • AP Exams

    Breaking AP Calculus BC into smaller pieces worked much better for me. I started noticing the reason for a mistake much faster.

    Josefina Sarmiento

  • AP Exams

    Over time, AP Physics C: E&M became one of the most organized parts of my AP Exams preparation. I started noticing the reason for a mistake much faster.

    Eduardo Castro

  • AP Exams

    Using the mark scheme to review my own answer was surprisingly helpful. I was really happy with the lessons.

    Levi Langford

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. After each test, we looked beyond the score and reviewed the type of each mistake. The lessons where I found the bug myself were the ones I remembered best. Knowing what to study reduced a lot of the stress. The preparation felt calmer than I expected.

    Alan Varela

  • AP Exams

    We wanted our child to keep up with the school pace in AP Seminar. Past-paper work continued without falling behind in current school topics. Thank you sincerely to everyone involved.

    Catalina Palacios

  • AP Exams

    I was doing questions for AP English Language on my own but never had a steady routine. We didn't spend extra time on things I already knew. I went into the exam much calmer than I would have before. It was an intense period, but it was worth it.

    Paolo Macapagal

  • AP Exams

    Breaking AP Physics C: Mechanics into smaller pieces worked much better for me. After a while, the questions started to feel much more familiar.

    Oliver Fraser

  • AP Exams

    Our child wasn't sure how to organize the preparation for AP Exams. Communication with the team was straightforward and our questions were answered. We were pleased with the support we received.

    Marcus Langston

  • AP Exams

    Our child wasn't sure how to organize the preparation for AP Exams. We were happy with both the teaching and the communication.

    Anouk Wagner

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. Full-length mocks helped me get used to the real exam pace. Past-paper questions showed me how different topics could appear together. I started tracking the type of mistake, not just the number of questions I completed. It was an intense period, but it was worth it.

    Martin Santillan

  • AP Exams

    I finally understood what was going wrong in AP Physics C: Mechanics. My confidence improved along with the results.

    Joaquin Cuevas

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. After a while, the questions started to feel much more familiar.

    Pippa McLean

  • AP Exams

    We weren't sure whether online lessons would be effective. Joining lessons willingly was one of the clearest signs for us. Communication with the team was straightforward and our questions were answered. Regular work on similar question types reduced repeated mistakes. Flexible scheduling helped during a demanding school year. Seeing the change in our child made us very happy.

    Aisling Chandler

  • AP Exams

    Keeping school units and exam preparation in the same plan worked really well. Breaking AP Psychology into smaller pieces worked much better for me. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Vivek Sethi

Ready to Be Our Next Success Story?

Take a free diagnostic test to see exactly where you stand. Our expert tutors will create a personalized plan to reach your target score.

  • No commitment required to get started
  • Personalized score analysis and study plan
  • Free comprehensive diagnostic test
500+ students supported|4.9/5 rating

Book a Free Consultation

Fill in your details and we will get back to you.

Free Consultation (Online Video Call)

Message us on WhatsApp or give us a call to discuss your goals and plan the right program. We usually reply within a few hours.