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 my first attempt, I wanted the second round of preparation to feel more organized. My confidence improved along with the results.

    Delaney Mercer

  • AP Exams

    The feedback I received on AP Computer Science A was clear and practical. My tutor made it easy to ask questions from the first lesson. Predicting the output helped me catch small logic errors. My mock results gradually became more consistent. I went into the exam much calmer than I would have before. It was an intense period, but it was worth it.

    Julian Montoya

  • AP Exams

    We weren't sure whether online lessons would be effective. Joining lessons willingly was one of the clearest signs for us. The plan was adjusted when school exams became busy. Being able to fit lessons around school made the process easier. The tutor supported regular study, not only the lesson content. We quickly felt that the tutor was a good match.

    Jasmine Moroney

  • AP Exams

    As the exam got closer, I wasn't sure what I should actually review. I stopped doing a huge amount one week and nothing the next. I used the question bank regularly to return to weaker topics. My written code answers became much more organized. I started noticing the reason for a mistake much faster. Thank you to my tutor and the TestPrep team.

    Buse Ekinci

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. Thank you to my tutor and the TestPrep team.

    Ren Sasaki

  • AP Exams

    Flexible scheduling helped during a demanding school year. We would recommend the program to students and families in a similar situation.

    Gavin Driscoll

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. Breaking AP Computer Science Principles into smaller pieces worked much better for me. We could make the workload lighter during busy weeks at school or university. My written code answers became much more organized. I started noticing the reason for a mistake much faster. I'm genuinely thankful to my tutor for being patient.

    Tomas Segura

  • AP Exams

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Going back to the lesson recordings helped when I forgot a small step. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. Thanks to everyone who supported me.

    Vivek Mukherjee

  • AP Exams

    My tutor could see my reasoning and usually found the source of an error quickly. The feedback I received on AP Computer Science Principles was clear and practical. My confidence improved along with the results. A big thank you to my tutor for all the support :)

    Abbey Harcourt

  • AP Exams

    We weren't sure whether online lessons would be effective. The tutor's close attention to weaker areas gave us confidence. We quickly felt that the tutor was a good match.

    Minseok Song

  • AP Exams

    Our child had a clear goal but no steady study routine. Preparation looked calmer and more organized closer to the exam. Being able to fit lessons around school made the process easier. The tutor supported regular study, not only the lesson content. Joining lessons willingly was one of the clearest signs for us. The overall experience was positive from beginning to end.

    Fiona Bennett

  • AP Exams

    I finally understood what was going wrong in AP Seminar. Breaking the draft into smaller parts made it feel much more doable. I left the exam feeling that I had done what I could.

    Jade Aldridge

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. Online lessons made it possible to continue without losing time on travel.

    Agustin Portillo

  • AP Exams

    I was doing questions for AP Human Geography on my own but never had a steady routine. Over time, AP Human Geography became one of the most organized parts of my AP Exams preparation. Near the exam, it was clear what to keep doing and what to stop. Using the mark scheme to review my own answer was surprisingly helpful. My preparation became much more regular and easier to track. The preparation felt calmer than I expected.

    Ethan Holloway

  • AP Exams

    I was doing questions for AP Seminar on my own but never had a steady routine. After enough examples of the same question type, the repeated mistakes decreased. I realized that choosing a topic, researching and revising each needed its own deadline. Going back to the lesson recordings helped when I forgot a small step. The preparation felt calmer than I expected.

    Grace Brennan

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. After a while, the questions started to feel much more familiar.

    Imogen Goodall

  • AP Exams

    Source questions became easier once I noticed how small details affected the mark. I'm glad I worked with my tutor through this process.

    Paige Finley

  • AP Exams

    I was doing questions for AP US Government on my own but never had a steady routine. My tutor could see my reasoning and usually found the source of an error quickly. Source questions became easier once I noticed how small details affected the mark. My tutor made it easy to ask questions from the first lesson. Lesson times could fit around school, university or work. I'm genuinely thankful to my tutor for being patient.

    Hiroto Takeuchi

  • AP Exams

    We noticed that the resources kept changing during independent study. We would recommend the program to students and families in a similar situation.

    Lukas Busch

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. Preparation looked calmer and more organized closer to the exam. A good connection with the tutor developed quite quickly. Individual lesson time was used around our child's actual needs. Flexible scheduling helped during a demanding school year. Seeing the change in our child made us very happy.

    Gonzalo Correia

  • AP Exams

    After each test, we looked beyond the score and reviewed the type of each mistake. Breaking AP Psychology into smaller pieces worked much better for me. I became much more comfortable asking questions in class. Thank you to the tutor who stayed supportive until the end.

    Vinicius Miranda

  • AP Exams

    Breaking AP Environmental Science into smaller pieces worked much better for me. Past-paper questions showed me how different topics could appear together. I went into the exam much calmer than I would have before.

    Kiet Saelim

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. Lesson times could fit around school, university or work. I went into the exam much calmer than I would have before. Thank you to my tutor and the TestPrep team.

    Fernanda Rezende

  • AP Exams

    We noticed that the resources kept changing during independent study. The lessons started being followed without constant reminders from us. With no more than six students, the tutor had time for everyone. Online lessons made it possible to continue without losing time on travel. Preparation looked calmer and more organized closer to the exam. We thank the tutor and the TestPrep team.

    Zora Babic

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500+ students supported|4.9/5 rating

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