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 feedback I received on AP Physics C: Mechanics was clear and practical. By the end of each lesson, I knew what I was supposed to do during the week. I became much more careful with graphs, experiments and data-based questions. I went into the exam much calmer than I would have before. I started noticing the reason for a mistake much faster. I was really happy with the lessons.

    Berk Aydin

  • AP Exams

    I was taking AP Chemistry at school, but getting used to the exam questions took time. One bad mock no longer made me want to drop the whole plan. Having the lesson move at my pace made the process feel much easier. I became much more careful with graphs, experiments and data-based questions. My confidence improved along with the results. The preparation felt calmer than I expected.

    Bima Firmansyah

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. Thanks to everyone who supported me.

    Amanda Marques

  • AP Exams

    Everyone recommended different resources and I kept switching between them. Focusing on past papers and mock review worked well near the exam. My written code answers became much more organized. My tutor made it easy to ask questions from the first lesson. We were realistic about what could be improved in the time available. The preparation felt calmer than I expected.

    Shota Abe

  • AP Exams

    I chose AP Calculus BC this year and wanted to build a solid base from the beginning. I started noticing the reason for a mistake much faster.

    Valentina Beltran

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. I was really happy with the lessons.

    Blake Nichols

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. Breaking AP Calculus BC into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. I started seeing shorter solutions that were easier to check under time pressure. My preparation became much more regular and easier to track. The preparation felt calmer than I expected.

    Carolina Marques

  • AP Exams

    The feedback I received on AP English Language was clear and practical. My tutor made it easy to ask questions from the first lesson. I stopped choosing answers by feel and started looking for evidence in the passage. My confidence improved along with the results. I started noticing the reason for a mistake much faster. I was really happy with the lessons.

    Nathan Underwood

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. Online lessons made it possible to continue without losing time on travel.

    Sora Sung

  • AP Exams

    I chose AP Chemistry this year and wanted to build a solid base from the beginning. My tutor usually asked me to explain my thinking before stepping in. Past-paper questions showed me how different topics could appear together. Thanks to TestPrep for helping me stay on track.

    Bruna Campos

  • AP Exams

    We wanted our child to keep up with the school pace in AP Chemistry. We thank the tutor and the TestPrep team.

    Alessia Caruso

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. I never felt awkward asking the same thing again. Lesson times could fit around school, university or work. I realized that choosing a topic, researching and revising each needed its own deadline. My mock results gradually became more consistent. Thank you to the tutor who stayed supportive until the end.

    Taemin Lee

  • AP Exams

    I was doing questions for AP Psychology on my own but never had a steady routine. Breaking AP Psychology into smaller pieces worked much better for me. I started tracking the type of mistake, not just the number of questions I completed. I stopped listing facts in essays and started building an actual argument. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Riley Kirk

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. My tutor usually asked me to explain my thinking before stepping in. Choosing questions by topic made my practice time much more useful. We focused more on understanding what the problem asked than memorizing formulas. I went into the exam much calmer than I would have before. I'm glad I worked with my tutor through this process.

    Hakan Bozkurt

  • AP Exams

    Over time, AP Microeconomics became one of the most organized parts of my AP Exams preparation. Separating strategy mistakes from content gaps made progress much quicker. I started noticing the reason for a mistake much faster.

    Marcelo Miranda

  • AP Exams

    I chose AP Calculus AB this year and wanted to build a solid base from the beginning. After a while, the questions started to feel much more familiar.

    Brodie Dwyer

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. The tutor's close attention to weaker areas gave us confidence. We quickly felt that the tutor was a good match.

    Lucia Sequeira

  • AP Exams

    Anxiety became more visible as the exam got closer. Being able to fit lessons around school made the process easier. We would recommend the program to students and families in a similar situation.

    Duarte Pires

  • AP Exams

    What annoyed me most was losing easy points because I rushed. I went into the exam much calmer than I would have before.

    Bianca Donati

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. The class felt relaxed enough to ask questions without overthinking it. I went into the exam much calmer than I would have before. I'm genuinely thankful to my tutor for being patient.

    Mariana Arce

  • AP Exams

    Breaking AP Physics 1 into smaller pieces worked much better for me. I went into the exam much calmer than I would have before.

    Catalina Villalba

  • AP Exams

    After my first attempt, I wanted the second round of preparation to feel more organized. Over time, AP Physics C: Mechanics became one of the most organized parts of my AP Exams preparation. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Lara Peters

  • AP Exams

    Our child had a clear goal but no steady study routine. Individual lesson time was used around our child's actual needs. The plan was adjusted when school exams became busy. We were able to follow the mock results regularly. Seeing the change in our child made us very happy.

    Ines Gallardo

  • AP Exams

    After each test, we looked beyond the score and reviewed the type of each mistake. Breaking AP Human Geography into smaller pieces worked much better for me. My confidence improved along with the results. Thank you to the tutor who stayed supportive until the end.

    Theo Caron

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500+ students supported|4.9/5 rating

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