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

    Knowing the criteria from the start made the whole task less vague. I'm genuinely thankful to my tutor for being patient.

    Lucas Marques

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. The feedback I received on IB Geography was clear and practical. Going back to the lesson recordings helped when I forgot a small step. Using the mark scheme to review my own answer was surprisingly helpful. I started noticing the reason for a mistake much faster. It was an intense period, but it was worth it.

    Renata Braga

  • IB Diploma

    I chose IB Chemistry this year and wanted to build a solid base from the beginning. By the end of each lesson, I knew what I was supposed to do during the week. Once I understood the reasons behind the facts, the questions felt less random. A big thank you to my tutor for all the support :)

    Lewis Chandler

  • IB Diploma

    After my first attempt, I wanted the second round of preparation to feel more organized. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Sorting mistakes after each mock changed the way I studied. Thanks to TestPrep for helping me stay on track.

    Cheng Xie

  • IB Diploma

    At the beginning, we knew very little about the IB Diploma system as parents. Full-length tests showed how time was being used across the exam. We thank the tutor and the TestPrep team.

    Luisa Hartmann

  • IB Diploma

    Everyone recommended different resources and I kept switching between them. I finally understood what was going wrong in IB Geography. One bad mock no longer made me want to drop the whole plan. Connecting examples back to the main point made my writing more consistent. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Keira Atkinson

  • IB Diploma

    After my first attempt, I wanted the second round of preparation to feel more organized. Lesson times could fit around school, university or work. Practicing in the real exam format made test day feel much less unfamiliar. Going back to the lesson recordings helped when I forgot a small step. Thank you to my tutor and the TestPrep team.

    Giulia Fiore

  • IB Diploma

    The mocks showed where my time was actually being lost. I finally understood what was going wrong in IB Visual Arts. Knowing what to study reduced a lot of the stress. Thanks to everyone who supported me.

    Carter Gardner

  • IB Diploma

    The plan was adjusted when school exams became busy. Communication with the team was straightforward and our questions were answered. Thank you sincerely to everyone involved.

    Austin Atwood

  • IB Diploma

    I was taking Extended Essay (EE) at school, but getting used to the exam questions took time. I found a better balance between regular school and exam preparation.

    Rizky Nugroho

  • IB Diploma

    I was close to my target, but my results changed a lot from one test to the next. My tutor made it easy to ask questions from the first lesson. Keeping school units and exam preparation in the same plan worked really well. The feedback helped me improve my own work without writing it for me. My mock results gradually became more consistent. I'm glad I worked with my tutor through this process.

    Tolga Ersoy

  • IB Diploma

    Our child wasn't sure how to organize the preparation for IB Diploma. Thank you sincerely to everyone involved.

    Lucy Webster

  • IB Diploma

    The feedback I received on IB Computer Science was clear and practical. Predicting the output helped me catch small logic errors. My preparation became much more regular and easier to track.

    Bryce Raines

  • IB Diploma

    It was good to see confidence returning over time. We thank the tutor and the TestPrep team.

    Samuele Fiore

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. The plan changed with my mock and homework results, so the work never felt random. I worked on keeping a steady pace instead of rushing the easy questions. I'm genuinely thankful to my tutor for being patient.

    Felix Peeters

  • IB Diploma

    I chose IB Physics this year and wanted to build a solid base from the beginning. We could make the workload lighter during busy weeks at school or university. Past-paper questions showed me how different topics could appear together. Thanks to everyone who supported me.

    Matilda Templeton

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. I finally understood what was going wrong in Extended Essay (EE). The plan changed with my mock and homework results, so the work never felt random. Knowing the criteria from the start made the whole task less vague. I found a better balance between regular school and exam preparation. It was an intense period, but it was worth it.

    Mitchell Hawke

  • IB Diploma

    Over time, IB Business Management became one of the most organized parts of my IB Diploma preparation. My preparation became much more regular and easier to track.

    Andrea Portillo

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. The plan changed with my mock and homework results, so the work never felt random. Breaking the draft into smaller parts made it feel much more doable. Thank you to the tutor who stayed supportive until the end.

    Camden Carver

  • IB Diploma

    Online lessons made it possible to continue without losing time on travel. We were pleased with the support we received.

    Tiago Simoes

  • IB Diploma

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. My tutor usually asked me to explain my thinking before stepping in. The group never had more than six students, so it was easy to stay involved. The feedback helped me improve my own work without writing it for me. There was no overnight miracle, but the progress was easy to see. I was really happy with the lessons.

    Camden Sutton

  • IB Diploma

    Keeping up with IB Diploma while school was busy was harder than I expected. I used the question bank regularly to return to weaker topics. Knowing the criteria from the start made the whole task less vague. I stopped doing a huge amount one week and nothing the next. Choosing questions by topic made my practice time much more useful. The preparation felt calmer than I expected.

    Morgan Hawkins

  • IB Diploma

    The tutor supported regular study, not only the lesson content. The overall experience was positive from beginning to end.

    Rita Leitao

  • IB Diploma

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Even in a group lesson, the tutor knew where each of us stood. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. The plan changed with my mock and homework results, so the work never felt random. Questions from other students often helped me as well. A big thank you to my tutor for all the support :)

    Paula Baptista

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.