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

    The plan was adjusted when school exams became busy. We were happy with both the teaching and the communication.

    Ceren Kartal

  • AP Exams

    Breaking AP Computer Science Principles into smaller pieces worked much better for me. I stopped doing a huge amount one week and nothing the next. My written code answers became much more organized. I wasn't trying to learn new topics at the very last minute. I went into the exam much calmer than I would have before. I was really happy with the lessons.

    Riccardo Valentini

  • AP Exams

    Breaking AP Biology into smaller pieces worked much better for me. I became much more careful with graphs, experiments and data-based questions. My confidence improved along with the results.

    Ishita Khanna

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. Thanks to everyone who supported me.

    Dewi Kusuma

  • AP Exams

    I finally understood what was going wrong in AP European History. I learned to make a short plan before starting a long response. There was no overnight miracle, but the progress was easy to see.

    Dario Ahlberg

  • AP Exams

    I was doing questions for AP US Government on my own but never had a steady routine. The feedback I received on AP US Government was clear and practical. My tutor made it easy to ask questions from the first lesson. Connecting examples back to the main point made my writing more consistent. I left the exam feeling that I had done what I could. Thank you to the tutor who stayed supportive until the end.

    Solene Tessier

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. My preparation became much more regular and easier to track.

    Yuto Takeuchi

  • AP Exams

    Separating calculation errors from content gaps made revision more useful. I'm glad I worked with my tutor through this process.

    Devin Townsend

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. The lessons started being followed without constant reminders from us. Mistakes became something to work on rather than something to feel bad about. Topic-based question practice made study time more focused. A good connection with the tutor developed quite quickly. Seeing the change in our child made us very happy.

    Joris VanDijk

  • AP Exams

    Anxiety became more visible as the exam got closer. The lessons started being followed without constant reminders from us. Joining lessons willingly was one of the clearest signs for us. With no more than six students, the tutor had time for everyone. Mistakes became something to work on rather than something to feel bad about. We were pleased with the support we received.

    Thao Cao

  • AP Exams

    Our child wasn't sure how to organize the preparation for AP Exams. The small group offered peer learning without making it hard to ask questions. The plan was adjusted when school exams became busy. The lessons started being followed without constant reminders from us. We thank the tutor and the TestPrep team.

    Aylin Gokce

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. I wasn't trying to learn new topics at the very last minute.

    Matteo Parisi

  • AP Exams

    As the exam got closer, I wasn't sure what I should actually review. Over time, AP World History became one of the most organized parts of my AP Exams preparation. My tutor made it easy to ask questions from the first lesson. Source questions became easier once I noticed how small details affected the mark. Knowing what to study reduced a lot of the stress. Thanks to everyone who supported me.

    Dylan Garland

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. A big thank you to my tutor for all the support :)

    Matilda Banfield

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. I never felt awkward asking the same thing again. After each test, we looked beyond the score and reviewed the type of each mistake. I became much more careful with graphs, experiments and data-based questions. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Florian Gerard

  • AP Exams

    Breaking AP Microeconomics into smaller pieces worked much better for me. I found a better balance between regular school and exam preparation.

    Holly Lockwood

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. We would recommend the program to students and families in a similar situation.

    Pippa Paterson

  • AP Exams

    The feedback I received on AP Biology was clear and practical. I wasn't trying to learn new topics at the very last minute.

    Owen Winslow

  • AP Exams

    Over time, AP Psychology became one of the most organized parts of my AP Exams preparation. I learned to make a short plan before starting a long response. Knowing what to study reduced a lot of the stress.

    Maja Meijer

  • AP Exams

    Source questions became easier once I noticed how small details affected the mark. I was really happy with the lessons.

    Noemie Picard

  • AP Exams

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. We could make the workload lighter during busy weeks at school or university. Lesson times could fit around school, university or work. I became much more careful with graphs, experiments and data-based questions. After a while, the questions started to feel much more familiar. I'm glad I worked with my tutor through this process.

    Diogo Leitao

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. We could make the workload lighter during busy weeks at school or university. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. Thank you to the tutor who stayed supportive until the end.

    Ruby Harcourt

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. Breaking AP Art History into smaller pieces worked much better for me. I stopped doing a huge amount one week and nothing the next. I understood that the portfolio needed to show the process, not only the finished piece. I started noticing the reason for a mistake much faster. I'm genuinely thankful to my tutor for being patient.

    Harry Ellis

  • AP Exams

    Preparation looked calmer and more organized closer to the exam. We were able to follow the mock results regularly. We were happy with both the teaching and the communication.

    Masato Maeda

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500+ students supported|4.9/5 rating

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