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

  • IGCSE / GCSE

    Breaking IGCSE Sociology into smaller pieces worked much better for me. I wasn't trying to learn new topics at the very last minute.

    Sergio Guerreiro

  • IGCSE / GCSE

    Over time, IGCSE English Literature became one of the most organized parts of my IGCSE / GCSE preparation. My mock results gradually became more consistent.

    Ignacio Navarrete

  • YÖS / TR-YÖS

    I was taking Mathematics at school, but getting used to the exam questions took time. I started noticing the reason for a mistake much faster.

    Mika Valdez

  • 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

  • IGCSE / GCSE

    The feedback I received on IGCSE English as a Second Language was clear and practical. I started tracking the type of mistake, not just the number of questions I completed. My written answers became shorter, clearer and easier to follow. I found a better balance between regular school and exam preparation. Knowing what to study reduced a lot of the stress. I'm genuinely thankful to my tutor for being patient.

    Leandro Mendoza

  • ACT

    At the beginning, we knew very little about the ACT system as parents. Communication with the team was straightforward and our questions were answered.

    Natalie Goodwin

  • UCAT

    We wanted our child to keep up with the school pace in Situational Judgement. We were pleased with the support we received.

    Holly Ingram

  • 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

  • LNAT

    The feedback I received on Argument Analysis was clear and practical. I stopped choosing answers by feel and started looking for evidence in the passage. I started noticing the reason for a mistake much faster.

    Dylan Haines

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. We didn't spend extra time on things I already knew. We focused more on understanding what the problem asked than memorizing formulas. The plan changed with my mock and homework results, so the work never felt random. I'm glad I worked with my tutor through this process.

    Elena Fuentes

  • YÖS / TR-YÖS

    Our child had a clear goal but no steady study routine. A good connection with the tutor developed quite quickly. Thank you sincerely to everyone involved.

    Ilaria Bellini

  • 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

  • SSAT

    After my first attempt, I wanted the second round of preparation to feel more organized. Even in a group lesson, the tutor knew where each of us stood. Practicing in the real exam format made test day feel much less unfamiliar. One bad mock no longer made me want to drop the whole plan. Questions from other students often helped me as well. Thanks to everyone who supported me.

    Kai Lin

  • IMAT

    What annoyed me most was losing easy points because I rushed. Knowing what to study reduced a lot of the stress.

    Isabela Villanueva

  • IGCSE / GCSE

    After enough examples of the same question type, the repeated mistakes decreased. Breaking IGCSE 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.

    Gabriele Rossetti

  • IB Diploma

    The feedback I received on IB Mathematics AA was clear and practical. My mock results gradually became more consistent.

    Diya Basu

  • 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

  • Digital SAT

    We noticed that the resources kept changing during independent study. The tutor supported regular study, not only the lesson content. The lessons started being followed without constant reminders from us. The question bank made independent work between lessons much clearer. Online lessons made it possible to continue without losing time on travel. We would recommend the program to students and families in a similar situation.

    Logan Hensley

  • IGCSE / GCSE

    Over time, IGCSE Turkish became one of the most organized parts of my IGCSE / GCSE preparation. I left the exam feeling that I had done what I could.

    Camille Brunet

  • GMAT Focus

    My mock scores were inconsistent, so it was hard to judge my actual level. Over time, Critical Reasoning became one of the most organized parts of my GMAT Focus preparation. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Balancing Quant and Verbal in the same week worked better than studying them in blocks. I went into the exam much calmer than I would have before. Thank you to the tutor who stayed supportive until the end.

    Teagan Hensley

  • UCAT

    I was taking Quantitative Reasoning at school, but getting used to the exam questions took time. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. I started seeing shorter solutions that were easier to check under time pressure. I was really happy with the lessons.

    Evie Cormack

  • A-Level

    Seeing several versions of the same topic made unfamiliar questions less stressful. Thanks to everyone who supported me.

    Declan Walsh

  • TOEFL iBT

    We didn't spend extra time on things I already knew. Over time, Speaking became one of the most organized parts of my TOEFL iBT preparation. Knowing what to study reduced a lot of the stress. It was an intense period, but it was worth it.

    Tommaso Coppola

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500+ students supported|4.9/5 rating

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