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

    Over time, IQ & Logic became one of the most organized parts of my YÖS / TR-YÖS preparation. My preparation became much more regular and easier to track.

    Leon Neumann

  • YÖS / TR-YÖS

    I chose Geometry this year and wanted to build a solid base from the beginning. Going back to the lesson recordings helped when I forgot a small step. Having the lesson move at my pace made the process feel much easier. We focused more on understanding what the problem asked than memorizing formulas. I became much more comfortable asking questions in class. I was really happy with the lessons.

    Mathis Lacroix

  • YÖS / TR-YÖS

    The YÖS / TR-YÖS format felt unnecessarily confusing at first. Lesson times could fit around school, university or work. I found a better balance between regular school and exam preparation. Thanks to TestPrep for helping me stay on track.

    Hamish Kingston

  • YÖS / TR-YÖS

    We focused more on understanding what the problem asked than memorizing formulas. Thank you to the tutor who stayed supportive until the end.

    Irem Keskin

  • YÖS / TR-YÖS

    The feedback I received on Mathematics was clear and practical. After a while, the questions started to feel much more familiar.

    Paula Mendoza

  • YÖS / TR-YÖS

    Breaking Mathematics into smaller pieces worked much better for me. My tutor usually asked me to explain my thinking before stepping in. Learning when to leave a hard question made a real difference to my timing. I started noticing the reason for a mistake much faster. I wasn't trying to learn new topics at the very last minute. I'm glad I worked with my tutor through this process.

    Lorena Lemus

  • YÖS / TR-YÖS

    A good connection with the tutor developed quite quickly. Preparation looked calmer and more organized closer to the exam. We quickly felt that the tutor was a good match.

    Nils Ahlberg

  • YÖS / TR-YÖS

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. The plan changed with my mock and homework results, so the work never felt random. Having the lesson move at my pace made the process feel much easier. A quick check after each answer helped me catch small mistakes. I wasn't trying to learn new topics at the very last minute. The preparation felt calmer than I expected.

    Meera Kulkarni

  • YÖS / TR-YÖS

    We weren't sure whether online lessons would be effective. With no more than six students, the tutor had time for everyone. The lessons started being followed without constant reminders from us. Flexible scheduling helped during a demanding school year. Seeing the change in our child made us very happy.

    Carmen Fidalgo

  • YÖS / TR-YÖS

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

    Anna Verhoeven

  • YÖS / TR-YÖS

    We focused more on understanding what the problem asked than memorizing formulas. I'm glad I worked with my tutor through this process.

    Alice Redmond

  • YÖS / TR-YÖS

    As the exam got closer, I wasn't sure what I should actually review. The feedback I received on Geometry was clear and practical. Going back to the lesson recordings helped when I forgot a small step. A quick check after each answer helped me catch small mistakes. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Renata Mena

  • YÖS / TR-YÖS

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. We could make the workload lighter during busy weeks at school or university. I used the question bank regularly to return to weaker topics. A quick check after each answer helped me catch small mistakes. I found a better balance between regular school and exam preparation. I was really happy with the lessons.

    Lorenzo Rossetti

  • YÖS / TR-YÖS

    As the exam got closer, I wasn't sure what I should actually review. After enough examples of the same question type, the repeated mistakes decreased. There was no overnight miracle, but the progress was easy to see. The preparation felt calmer than I expected.

    Pablo Cabrera

  • YÖS / TR-YÖS

    As the exam got closer, I wasn't sure what I should actually review. I became much more comfortable asking questions in class.

    Harrison Ritchie

  • YÖS / TR-YÖS

    We wanted our child to keep up with the school pace in Geometry. Being able to fit lessons around school made the process easier. Flexible scheduling helped during a demanding school year. Joining lessons willingly was one of the clearest signs for us. We were happy with both the teaching and the communication.

    Pippa Teague

  • YÖS / TR-YÖS

    The YÖS / TR-YÖS format felt unnecessarily confusing at first. The plan changed with my mock and homework results, so the work never felt random. The mocks showed where my time was actually being lost. A quick check after each answer helped me catch small mistakes. My confidence improved along with the results. I'm genuinely thankful to my tutor for being patient.

    Tyler Winslow

  • YÖS / TR-YÖS

    When I started preparing for YÖS / TR-YÖS, I wasn't sure what order to study things in. My preparation became much more regular and easier to track.

    Siddharth Sen

  • YÖS / TR-YÖS

    Anxiety became more visible as the exam got closer. Being able to fit lessons around school made the process easier. Joining lessons willingly was one of the clearest signs for us. 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.

    Ozan Kurt

  • YÖS / TR-YÖS

    Over time, IQ & Logic became one of the most organized parts of my YÖS / TR-YÖS preparation. Seeing several versions of the same topic made unfamiliar questions less stressful. There was no overnight miracle, but the progress was easy to see.

    Madison McAllister

  • YÖS / TR-YÖS

    Breaking IQ & Logic into smaller pieces worked much better for me. The plan changed with my mock and homework results, so the work never felt random. 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 wasn't trying to learn new topics at the very last minute. I was really happy with the lessons.

    Agustina Cuellar

  • YÖS / TR-YÖS

    What annoyed me most was losing easy points because I rushed. The feedback I received on Time Management was clear and practical. We could make the workload lighter during busy weeks at school or university. Seeing several versions of the same topic made unfamiliar questions less stressful. Knowing what to study reduced a lot of the stress. I was really happy with the lessons.

    Jaehyun Oh

  • YÖS / TR-YÖS

    I chose IQ & Logic this year and wanted to build a solid base from the beginning. There was no overnight miracle, but the progress was easy to see.

    Sienna Cormack

  • YÖS / TR-YÖS

    We noticed that the resources kept changing during independent study. A good connection with the tutor developed quite quickly. Preparation looked calmer and more organized closer to the exam. Being able to fit lessons around school made the process easier. We were able to follow the mock results regularly. We were happy with both the teaching and the communication.

    Gonzalo Gallardo

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500+ students supported|4.9/5 rating

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