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

  • IB Diploma

    Breaking IB Geography into smaller pieces worked much better for me. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. I learned to make a short plan before starting a long response. I became much more comfortable asking questions in class. I went into the exam much calmer than I would have before. Thanks to everyone who supported me.

    Jasmine Hawke

  • IB Diploma

    I finally understood what was going wrong in Extended Essay (EE). Knowing what to study reduced a lot of the stress.

    Pablo Mota

  • IELTS Academic

    The feedback I received on Writing Task 1 was clear and practical. By the end of each lesson, I knew what I was supposed to do during the week. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. After a while, the questions started to feel much more familiar. My mock results gradually became more consistent. Thank you to my tutor and the TestPrep team.

    Buse Celik

  • ACT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Breaking Optional Writing into smaller pieces worked much better for me. By the end of each lesson, I knew what I was supposed to do during the week. I learned not to spend the same amount of time on every line of a long text. After a while, the questions started to feel much more familiar. Thank you to my tutor and the TestPrep team.

    Hilal Bilgin

  • LNAT

    Our child wasn't sure how to organize the preparation for LNAT. The tutor's calm approach helped protect motivation during the intensive period. Online lessons made it possible to continue without losing time on travel. Flexible scheduling helped during a demanding school year. We were happy with both the teaching and the communication.

    Orla Spencer

  • Digital SAT

    Preparation looked calmer and more organized closer to the exam. We would recommend the program to students and families in a similar situation.

    Matteo Marino

  • PTE Academic

    I had been studying alone, but my results stopped improving after a point. The class felt relaxed enough to ask questions without overthinking it. I left the exam feeling that I had done what I could. Thanks to TestPrep for helping me stay on track.

    Harper Connelly

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. A realistic plan for the final weeks reduced stress for the whole family. We thank the tutor and the TestPrep team.

    Luka Lund

  • IB Diploma

    What annoyed me most was losing easy points because I rushed. 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. Thanks to everyone who supported me.

    Agustin Quezada

  • IGCSE / GCSE

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. My confidence improved along with the results.

    Skye OBrien

  • PTE Academic

    Communication with the team was straightforward and our questions were answered. The overall experience was positive from beginning to end.

    Pranav Kulkarni

  • IMAT

    I was close to my target, but my results changed a lot from one test to the next. During the intensive review, we returned to real gaps instead of restarting everything. I learned to make a short plan before starting a long response. We could make the workload lighter during busy weeks at school or university. We were realistic about what could be improved in the time available. Thanks to everyone who supported me.

    Ceren Gurbuz

  • IGCSE / GCSE

    Over time, IGCSE Mathematics became one of the most organized parts of my IGCSE / GCSE preparation. A quick check after each answer helped me catch small mistakes. After a while, the questions started to feel much more familiar.

    Claire Maillard

  • IMAT

    Keeping up with IMAT while school was busy was harder than I expected. Even in a group lesson, the tutor knew where each of us stood. Knowing what to study reduced a lot of the stress. Thanks to everyone who supported me.

    Niran Thongdee

  • IELTS Academic

    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. The overall experience was positive from beginning to end.

    Jack Webster

  • TOEFL iBT

    It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. A big thank you to my tutor for all the support :)

    Damian Arce

  • IB Diploma

    Once I understood the reasons behind the facts, the questions felt less random. I was really happy with the lessons.

    Caleb Hawkins

  • UCAT

    The UCAT format felt unnecessarily confusing at first. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Practicing in the real exam format made test day feel much less unfamiliar. I was really happy with the lessons.

    Isabela Cuellar

  • LNAT

    Over time, Reading Comprehension became one of the most organized parts of my LNAT preparation. I became much more comfortable asking questions in class.

    Imogen Tierney

  • LSAT

    After my first attempt, I wanted a calmer and more focused plan for the retake. I'm glad I worked with my tutor through this process.

    Wyatt Barrett

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. After enough examples of the same question type, the repeated mistakes decreased. Discussing why the other choices were wrong helped more than I expected. By the end of each lesson, I knew what I was supposed to do during the week. Thank you to the tutor who stayed supportive until the end.

    Alice Baxter

  • SSAT

    Having the lesson move at my pace made the process feel much easier. I finally understood what was going wrong in Upper Level. There was no overnight miracle, but the progress was easy to see. Thank you to my tutor and the TestPrep team.

    Riley Porter

  • AP Exams

    I was taking AP Physics 2 at school, but getting used to the exam questions took time. We didn't spend extra time on things I already knew. I became much more careful with graphs, experiments and data-based questions. I started tracking the type of mistake, not just the number of questions I completed. Thank you to my tutor and the TestPrep team.

    Marleen Willems

  • IB Diploma

    Keeping up with IB Diploma while school was busy was harder than I expected. Going back to the lesson recordings helped when I forgot a small step. A quick check after each answer helped me catch small mistakes. Thank you to my tutor and the TestPrep team.

    Jules Girard

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500+ students supported|4.9/5 rating

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