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

  • A-Level

    Preparation looked calmer and more organized closer to the exam. Seeing the change in our child made us very happy.

    Hiroto Abe

  • Digital SAT

    I was taking Standard English Conventions at school, but getting used to the exam questions took time. My mock results gradually became more consistent.

    Aurora Ferri

  • AP Exams

    We wanted our child to keep up with the school pace in AP Microeconomics. Being able to fit lessons around school made the process easier. The lessons started being followed without constant reminders from us. Flexible scheduling helped during a demanding school year. Thank you sincerely to everyone involved.

    Burak Ersoy

  • IMAT

    I was close to my target, but my results changed a lot from one test to the next. I'm glad I worked with my tutor through this process.

    Elke Dijkstra

  • TOEFL iBT

    Even in a group lesson, the tutor knew where each of us stood. The feedback I received on Integrated Tasks was clear and practical. I found a better balance between regular school and exam preparation. Thank you to the tutor who stayed supportive until the end.

    Frieda Klein

  • IB Diploma

    We wanted our child to keep up with the school pace in IB English B. The plan was adjusted when school exams became busy. Thank you sincerely to everyone involved.

    Toby OConnell

  • IGCSE / GCSE

    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.

    Tessa Mullen

  • AP Exams

    Our child had a clear goal but no steady study routine. Mistakes became something to work on rather than something to feel bad about.

    Nikhil Purohit

  • A-Level

    Questions from other students often helped me as well. I finally understood what was going wrong in A-Level Psychology. After a while, the questions started to feel much more familiar. A big thank you to my tutor for all the support :)

    Mitchell Lawrence

  • GRE General

    I knew my target, but I didn't have a realistic routine for GRE General. The feedback I received on Quantitative Reasoning was clear and practical. The plan changed with my mock and homework results, so the work never felt random. A quick check after each answer helped me catch small mistakes. I became much more comfortable asking questions in class. I'm glad I worked with my tutor through this process.

    Mengyao Han

  • IB Diploma

    Breaking IB Geography into smaller pieces worked much better for me. I started tracking the type of mistake, not just the number of questions I completed. Source questions became easier once I noticed how small details affected the mark. I found a better balance between regular school and exam preparation. I became much more comfortable asking questions in class. It was an intense period, but it was worth it.

    Vinicius Almeida

  • IB Diploma

    Breaking IB Psychology into smaller pieces worked much better for me. I became much more comfortable asking questions in class.

    Henrik Markovic

  • UCAT

    I was taking Time Management at school, but getting used to the exam questions took time. I started tracking the type of mistake, not just the number of questions I completed. Timed work showed exactly which section was slowing me down. I'm glad I worked with my tutor through this process.

    Colin Patterson

  • A-Level

    Over time, A-Level Chemistry became one of the most organized parts of my A-Level preparation. I became much more careful with graphs, experiments and data-based questions. Knowing what to study reduced a lot of the stress.

    Meilin Xiao

  • IGCSE / GCSE

    I was taking IGCSE Combined Science at school, but getting used to the exam questions took time. Over time, IGCSE Combined Science became one of the most organized parts of my IGCSE / GCSE preparation. The plan changed with my mock and homework results, so the work never felt random. Past-paper questions showed me how different topics could appear together. My confidence improved along with the results. A big thank you to my tutor for all the support :)

    Marta Barros

  • A-Level

    Breaking A-Level Sociology into smaller pieces worked much better for me. My tutor made it easy to ask questions from the first lesson. I learned to make a short plan before starting a long response. I found a better balance between regular school and exam preparation. My preparation became much more regular and easier to track. I'm genuinely thankful to my tutor for being patient.

    Orla Brennan

  • ACT

    I was doing questions for Optional Writing on my own but never had a steady routine. I never felt awkward asking the same thing again. Lesson times could fit around school, university or work. Discussing why the other choices were wrong helped more than I expected. I became much more comfortable asking questions in class. I'm genuinely thankful to my tutor for being patient.

    Ruben Leitao

  • AP Exams

    Lesson times could fit around school, university or work. The feedback I received on AP Human Geography was clear and practical. I found a better balance between regular school and exam preparation. A big thank you to my tutor for all the support :)

    Kayla Monroe

  • IMAT

    Our child had a clear goal but no steady study routine. We would recommend the program to students and families in a similar situation.

    Hyejin Ji

  • SSAT

    Over time, Middle Level became one of the most organized parts of my SSAT preparation. I can now decide much faster when to move on from a question. My mock results gradually became more consistent.

    Kaan Ekinci

  • Digital SAT

    We wanted our child to keep up with the school pace in Advanced Math. Full-length tests showed how time was being used across the exam. We were able to follow the mock results regularly. Flexible scheduling helped during a demanding school year. We were pleased with the support we received.

    Viviana Chacon

  • TOEFL iBT

    The feedback I received on Reading was clear and practical. I started tracking the type of mistake, not just the number of questions I completed. I learned not to lose the rest of a listening task because I missed one word. My preparation became much more regular and easier to track. Thanks to everyone who supported me.

    Seojun Moon

  • IGCSE / GCSE

    I finally understood what was going wrong in IGCSE Combined Science. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Past-paper questions showed me how different topics could appear together. Knowing what to study reduced a lot of the stress. My preparation became much more regular and easier to track. It was an intense period, but it was worth it.

    Erdem Korkmaz

  • A-Level

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Breaking A-Level Mathematics into smaller pieces worked much better for me. I stopped doing a huge amount one week and nothing the next. Learning when to leave a hard question made a real difference to my timing. I wasn't trying to learn new topics at the very last minute. A big thank you to my tutor for all the support :)

    Saskia Hendriks

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500+ students supported|4.9/5 rating

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