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

  • YÖS / TR-YÖS

    The group never had more than six students, so it was easy to stay involved. I finally understood what was going wrong in Time Management. My preparation became much more regular and easier to track. A big thank you to my tutor for all the support :)

    Felipe Montalvo

  • YÖS / TR-YÖS

    We weren't sure whether online lessons would be effective. We were able to follow the mock results regularly. The plan was adjusted when school exams became busy. The tutor's close attention to weaker areas gave us confidence. It was good to see confidence returning over time. We were pleased with the support we received.

    Felix Schmitz

  • YÖS / TR-YÖS

    Over time, IQ & Logic became one of the most organized parts of my YÖS / TR-YÖS preparation. I became much more comfortable asking questions in class.

    Madison Chandler

  • YÖS / TR-YÖS

    Our child wasn't sure how to organize the preparation for YÖS / TR-YÖS. Preparation looked calmer and more organized closer to the exam.

    Shota Takeuchi

  • YÖS / TR-YÖS

    The YÖS / TR-YÖS format felt unnecessarily confusing at first. My confidence improved along with the results.

    Hina Maeda

  • 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

  • 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

  • YÖS / TR-YÖS

    I was close to my target, but my results changed a lot from one test to the next. Thank you to the tutor who stayed supportive until the end.

    Finn Krause

  • YÖS / TR-YÖS

    Breaking Geometry into smaller pieces worked much better for me. Knowing what to study reduced a lot of the stress.

    Claire Blanchard

  • YÖS / TR-YÖS

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

    Elise Renard

  • YÖS / TR-YÖS

    I finally understood what was going wrong in Mathematics. I became much more comfortable asking questions in class.

    Linlin Li

  • YÖS / TR-YÖS

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

    Joao Branco

  • YÖS / TR-YÖS

    The feedback I received on IQ & Logic was clear and practical. I stopped doing a huge amount one week and nothing the next. A quick check after each answer helped me catch small mistakes. There was no overnight miracle, but the progress was easy to see. The preparation felt calmer than I expected.

    Rafaela Oliveira

  • YÖS / TR-YÖS

    After the first attempt, we looked for a calmer plan for the retake. We thank the tutor and the TestPrep team.

    Danica Kovac

  • YÖS / TR-YÖS

    A quick check after each answer helped me catch small mistakes. The preparation felt calmer than I expected.

    Mette Lindberg

  • YÖS / TR-YÖS

    I was doing questions for Mathematics on my own but never had a steady routine. Even in a group lesson, the tutor knew where each of us stood. Learning when to leave a hard question made a real difference to my timing. My tutor usually asked me to explain my thinking before stepping in. Thank you to my tutor and the TestPrep team.

    Johan Ilic

  • YÖS / TR-YÖS

    The feedback I received on Geometry was clear and practical. Seeing several versions of the same topic made unfamiliar questions less stressful. I started noticing the reason for a mistake much faster.

    Yuki Sato

  • YÖS / TR-YÖS

    I was doing questions for IQ & Logic on my own but never had a steady routine. I went into the exam much calmer than I would have before.

    Ignacio Paredes

  • YÖS / TR-YÖS

    I finally understood what was going wrong in Mathematics. I wasn't trying to learn new topics at the very last minute.

    Valentin Berger

  • YÖS / TR-YÖS

    I was close to my target, but my results changed a lot from one test to the next. I started tracking the type of mistake, not just the number of questions I completed. Lesson times could fit around school, university or work. A quick check after each answer helped me catch small mistakes. My mock results gradually became more consistent. I was really happy with the lessons.

    Sloane Whitman

  • YÖS / TR-YÖS

    Everyone recommended different resources and I kept switching between them. I went into the exam much calmer than I would have before.

    Eunji Ahn

  • YÖS / TR-YÖS

    After my first attempt, I wanted the second round of preparation to feel more organized. I stopped doing a huge amount one week and nothing the next. I started seeing shorter solutions that were easier to check under time pressure. Thanks to TestPrep for helping me stay on track.

    Onur Gurbuz

  • YÖS / TR-YÖS

    Seeing several versions of the same topic made unfamiliar questions less stressful. I'm glad I worked with my tutor through this process.

    Loic Gauthier

  • YÖS / TR-YÖS

    We were realistic about what could be improved in the time available. Over time, IQ & Logic became one of the most organized parts of my YÖS / TR-YÖS preparation. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Santiago Villanueva

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500+ students supported|4.9/5 rating

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