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

  • IELTS Academic

    We wanted our child to keep up with the school pace in Listening. The plan was adjusted when school exams became busy. The class size kept our child from disappearing into the background. Communication with the team was straightforward and our questions were answered. Online lessons made it possible to continue without losing time on travel. We quickly felt that the tutor was a good match.

    Stefano Marino

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. With data-heavy questions, I began reading the task before getting lost in the table. Thanks to TestPrep for helping me stay on track.

    Colin Harrington

  • GRE General

    After my first attempt, I wanted a calmer and more focused plan for the retake. I'm genuinely thankful to my tutor for being patient.

    Sienna Fraser

  • TOEFL iBT

    Keeping up with TOEFL iBT while school was busy was harder than I expected. We didn't spend extra time on things I already knew. I learned not to lose the rest of a listening task because I missed one word. I stopped doing a huge amount one week and nothing the next. Lesson times could fit around school, university or work. I'm glad I worked with my tutor through this process.

    Lena Dekker

  • A-Level

    Breaking A-Level Computer Science into smaller pieces worked much better for me. I started tracing code line by line instead of only reading it quickly. I left the exam feeling that I had done what I could.

    Berk Turan

  • A-Level

    Source questions became easier once I noticed how small details affected the mark. Thanks to TestPrep for helping me stay on track.

    Hamish Sutherland

  • IGCSE / GCSE

    The feedback I received on IGCSE Physics was clear and practical. My mock results gradually became more consistent.

    Antonia Caceres

  • UCAT

    Our son's school schedule was already very busy. Flexible scheduling helped during a demanding school year. The plan was adjusted when school exams became busy. Being able to fit lessons around school made the process easier. It was good to see confidence returning over time. We would recommend the program to students and families in a similar situation.

    Caio Cunha

  • IMAT

    Everyone recommended different resources and I kept switching between them. Even in a group lesson, the tutor knew where each of us stood. I started noticing the reason for a mistake much faster. Thanks to everyone who supported me.

    Mateo Sarmiento

  • IB Diploma

    Anxiety became more visible as the exam got closer. Online lessons made it possible to continue without losing time on travel.

    Brooke Kavanagh

  • UCAT

    Breaking Verbal Reasoning into smaller pieces worked much better for me. 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. Knowing what to study reduced a lot of the stress. I left the exam feeling that I had done what I could. I'm genuinely thankful to my tutor for being patient.

    Coralie Picard

  • Digital SAT

    The feedback I received on Expression of Ideas was clear and practical. I worked on keeping a steady pace instead of rushing the easy questions. After a while, the questions started to feel much more familiar.

    Jonas Bos

  • IELTS Academic

    After my first attempt, I wanted a calmer and more focused plan for the retake. We didn't spend extra time on things I already knew. I wasn't trying to learn new topics at the very last minute. Thank you to the tutor who stayed supportive until the end.

    Brooke Daley

  • SSAT

    After my first attempt, I wanted the second round of preparation to feel more organized. Over time, Reading became one of the most organized parts of my SSAT preparation. One bad mock no longer made me want to drop the whole plan. My written answers became shorter, clearer and easier to follow. My confidence improved along with the results. Thanks to everyone who supported me.

    Sebastian Canales

  • GMAT Focus

    After my first attempt, I wanted a calmer and more focused plan for the retake. Over time, Critical Reasoning became one of the most organized parts of my GMAT Focus preparation. By the end of each lesson, I knew what I was supposed to do during the week. Balancing Quant and Verbal in the same week worked better than studying them in blocks. I started noticing the reason for a mistake much faster. Thank you to my tutor and the TestPrep team.

    Spencer Sinclair

  • IB Diploma

    Breaking Extended Essay (EE) into smaller pieces worked much better for me. Knowing the criteria from the start made the whole task less vague. I found a better balance between regular school and exam preparation.

    Elif Gunes

  • LNAT

    Even in a group lesson, the tutor knew where each of us stood. Over time, Argument Analysis became one of the most organized parts of my LNAT preparation. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Flynn McGrath

  • A-Level

    When I started preparing for A-Level, I wasn't sure what order to study things in. The group never had more than six students, so it was easy to stay involved. There was no overnight miracle, but the progress was easy to see. I was really happy with the lessons.

    Samuel Hargreaves

  • IB Diploma

    I was doing questions for IB ESS on my own but never had a steady routine. By the end of each lesson, I knew what I was supposed to do during the week. We didn't spend extra time on things I already knew. Once I understood the reasons behind the facts, the questions felt less random. My confidence improved along with the results. A big thank you to my tutor for all the support :)

    Cassidy Coleman

  • IGCSE / GCSE

    Breaking IGCSE English as a Second Language into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. A lot of my mistakes came from rushing through the wording of the question. I started noticing the reason for a mistake much faster. There was no overnight miracle, but the progress was easy to see. The preparation felt calmer than I expected.

    Ara Han

  • TOEFL iBT

    Our child wasn't sure how to organize the preparation for TOEFL iBT. A good connection with the tutor developed quite quickly. The tutor's close attention to weaker areas gave us confidence. The lessons started being followed without constant reminders from us. Flexible scheduling helped during a demanding school year. We were happy with both the teaching and the communication.

    Emiliano Carvajal

  • IGCSE / GCSE

    Anxiety became more visible as the exam got closer. A good connection with the tutor developed quite quickly. The plan was adjusted when school exams became busy. Being able to fit lessons around school made the process easier. Flexible scheduling helped during a demanding school year. We quickly felt that the tutor was a good match.

    Juliana Machado

  • IGCSE / GCSE

    Preparation looked calmer and more organized closer to the exam. Thank you sincerely to everyone involved.

    Linlin Xiao

  • AP Exams

    Over time, AP Biology 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. Separating calculation errors from content gaps made revision more useful. I went into the exam much calmer than I would have before. Knowing what to study reduced a lot of the stress. Thank you to my tutor and the TestPrep team.

    Riccardo Leone

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500+ students supported|4.9/5 rating

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