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

    As the exam got closer, I wasn't sure what I should actually review. Thanks to TestPrep for helping me stay on track.

    Caleb Brennan

  • IB Diploma

    Everyone recommended different resources and I kept switching between them. Over time, IB Mathematics AI became one of the most organized parts of my IB Diploma preparation. 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. After a while, the questions started to feel much more familiar. Thank you to the tutor who stayed supportive until the end.

    Kaori Ono

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. The feedback I received on IB TITC was clear and practical. Near the exam, it was clear what to keep doing and what to stop. Practicing in the real exam format made test day feel much less unfamiliar. After a while, the questions started to feel much more familiar. Thank you to the tutor who stayed supportive until the end.

    Signe Kaczmarek

  • IB Diploma

    The plan was adjusted when school exams became busy. It was good to see confidence returning over time. We thank the tutor and the TestPrep team.

    Trisha Trivedi

  • IB Diploma

    Over time, IB Geography became one of the most organized parts of my IB Diploma preparation. Going back to the lesson recordings helped when I forgot a small step. I stopped listing facts in essays and started building an actual argument. There was no overnight miracle, but the progress was easy to see. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Romina Carvajal

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. My tutor made it easy to ask questions from the first lesson. Source questions became easier once I noticed how small details affected the mark. The preparation felt calmer than I expected.

    Harrison Paterson

  • IB Diploma

    I realized that choosing a topic, researching and revising each needed its own deadline. It was an intense period, but it was worth it.

    Renato Pinheiro

  • IB Diploma

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

    Georgia Bennett

  • IB Diploma

    I was doing questions for IB Economics on my own but never had a steady routine. Over time, IB Economics became one of the most organized parts of my IB Diploma preparation. My tutor made it easy to ask questions from the first lesson. My case responses became more organized and direct. I started noticing the reason for a mistake much faster. It was an intense period, but it was worth it.

    Daniela Ponce

  • IB Diploma

    When I started preparing for IB Diploma, I wasn't sure what order to study things in. After a while, the questions started to feel much more familiar.

    Mitchell Newell

  • IB Diploma

    The feedback I received on IB Economics was clear and practical. Near the exam, it was clear what to keep doing and what to stop. With data-heavy questions, I began reading the task before getting lost in the table. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Nils Prochazka

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. I used the question bank regularly to return to weaker topics. Connecting examples back to the main point made my writing more consistent. By the end of each lesson, I knew what I was supposed to do during the week. After enough examples of the same question type, the repeated mistakes decreased. It was an intense period, but it was worth it.

    Andrea Piras

  • IB Diploma

    I was doing questions for IB Turkish A on my own but never had a steady routine. I wasn't trying to learn new topics at the very last minute.

    Aisling Caldwell

  • IB Diploma

    I chose Theory of Knowledge (TOK) this year and wanted to build a solid base from the beginning. I never felt awkward asking the same thing again. The feedback helped me improve my own work without writing it for me. Thank you to my tutor and the TestPrep team.

    Flynn Donovan

  • IB Diploma

    Everyone recommended different resources and I kept switching between them. I started tracking the type of mistake, not just the number of questions I completed. The class felt relaxed enough to ask questions without overthinking it. I stopped listing facts in essays and started building an actual argument. After a while, the questions started to feel much more familiar. I was really happy with the lessons.

    Marcos Barros

  • IB Diploma

    Over time, IB Psychology became one of the most organized parts of my IB Diploma preparation. I learned to make a short plan before starting a long response. I became much more comfortable asking questions in class.

    Efe Keskin

  • 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

  • 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

  • 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

  • IB Diploma

    I was close to my target, but my results changed a lot from one test to the next. My tutor could see my reasoning and usually found the source of an error quickly. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Lorena Peralta

  • IB Diploma

    After my first attempt, I wanted the second round of preparation to feel more organized. There was no overnight miracle, but the progress was easy to see.

    Annika Kral

  • IB Diploma

    We wanted our child to keep up with the school pace in IB Philosophy. Online lessons made it possible to continue without losing time on travel.

    Aditya Desai

  • 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

Ready to Be Our Next Success Story?

Take a free diagnostic test to see exactly where you stand. Our expert tutors will create a personalized plan to reach your target score.

  • No commitment required to get started
  • Personalized score analysis and study plan
  • Free comprehensive diagnostic test
500+ students supported|4.9/5 rating

Book a Free Consultation

Fill in your details and we will get back to you.

Free Consultation (Online Video Call)

Message us on WhatsApp or give us a call to discuss your goals and plan the right program. We usually reply within a few hours.