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

    I was doing questions for A-Level Sociology on my own but never had a steady routine. We didn't spend extra time on things I already knew. Connecting examples back to the main point made my writing more consistent. I never felt awkward asking the same thing again. My tutor could see my reasoning and usually found the source of an error quickly. The preparation felt calmer than I expected.

    Asli Aydin

  • AP Exams

    I chose AP US History 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. I learned to make a short plan before starting a long response. I was really happy with the lessons.

    Vasco Antunes

  • LNAT

    After my first attempt, I wanted the second round of preparation to feel more organized. I started noticing the reason for a mistake much faster.

    Jordan Jarvis

  • IGCSE / GCSE

    I was close to my target, but my results changed a lot from one test to the next. Experiencing the exam format beforehand made test day much less stressful. I learned to separate the information needed for a decision from the extra detail. My tutor made it easy to ask questions from the first lesson. A big thank you to my tutor for all the support :)

    Angus Goodall

  • IB Diploma

    When I started preparing for IB Diploma, I wasn't sure what order to study things in. Near the exam, it was clear what to keep doing and what to stop. Lesson times could fit around school, university or work. A quick check after each answer helped me catch small mistakes. I went into the exam much calmer than I would have before. Thanks to TestPrep for helping me stay on track.

    Greta Thiele

  • SSAT

    What annoyed me most was losing easy points because I rushed. Focusing on past papers and mock review worked well near the exam. I became much more comfortable asking questions in class. Thank you to the tutor who stayed supportive until the end.

    Tanvi Joshi

  • GMAT Focus

    I had collected too many resources without knowing when to use any of them. Breaking Verbal Reasoning into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. My written answers became shorter, clearer and easier to follow. I became much more comfortable asking questions in class. I'm glad I worked with my tutor through this process.

    Ilse Dekker

  • IGCSE / GCSE

    Keeping up with IGCSE / GCSE while school was busy was harder than I expected. I never felt awkward asking the same thing again. Seeing several versions of the same topic made unfamiliar questions less stressful. I'm genuinely thankful to my tutor for being patient.

    Camila Arellano

  • Digital SAT

    The lessons started being followed without constant reminders from us. We would recommend the program to students and families in a similar situation.

    Pim Dechawat

  • IMAT

    I finally understood what was going wrong in Logical Reasoning. Separating calculation errors from content gaps made revision more useful. After a while, the questions started to feel much more familiar.

    Claudia Branco

  • IB Diploma

    The feedback I received on IB World History 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 wasn't trying to learn new topics at the very last minute. I started noticing the reason for a mistake much faster. A big thank you to my tutor for all the support :)

    Janna Visser

  • AP Exams

    Everyone recommended different resources and I kept switching between them. One bad mock no longer made me want to drop the whole plan. A clear plan for the final weeks made priorities much easier to see. Using the mark scheme to review my own answer was surprisingly helpful. Knowing what to study reduced a lot of the stress. I was really happy with the lessons.

    Carla Cuevas

  • IELTS Academic

    Over time, Speaking became one of the most organized parts of my IELTS Academic preparation. I wasn't trying to learn new topics at the very last minute.

    Matias Ledesma

  • AP Exams

    Joining lessons willingly was one of the clearest signs for us. Online lessons made it possible to continue without losing time on travel. Seeing the change in our child made us very happy.

    Daniel Nolan

  • PTE Academic

    A clear plan for the final weeks made priorities much easier to see. The feedback I received on Speaking & Writing was clear and practical. I started noticing the reason for a mistake much faster. A big thank you to my tutor for all the support :)

    Nathan Bennett

  • IGCSE / GCSE

    The group never had more than six students, so it was easy to stay involved. I finally understood what was going wrong in IGCSE Art and Design. Knowing what to study reduced a lot of the stress. I'm glad I worked with my tutor through this process.

    Loic Meunier

  • A-Level

    I was doing questions for A-Level Further Mathematics on my own but never had a steady routine. My tutor could see my reasoning and usually found the source of an error quickly. I found a better balance between regular school and exam preparation. I'm glad I worked with my tutor through this process.

    Alana Bennett

  • A-Level

    The A-Level format felt unnecessarily confusing at first. We could make the workload lighter during busy weeks at school or university. Lesson times could fit around school, university or work. I learned not to spend the same amount of time on every line of a long text. My confidence improved along with the results. I'm glad I worked with my tutor through this process.

    Samuele Coppola

  • IB Diploma

    Our son's school schedule was already very busy. A good connection with the tutor developed quite quickly. Being able to fit lessons around school made the process easier. Joining lessons willingly was one of the clearest signs for us. Flexible scheduling helped during a demanding school year. We would recommend the program to students and families in a similar situation.

    Declan Kavanagh

  • A-Level

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Thank you to my tutor and the TestPrep team.

    Gabriele DeLuca

  • GMAT Focus

    In Data Sufficiency, timing was costing me more points than the content itself. I finally understood what was going wrong in Data Sufficiency. I stopped doing a huge amount one week and nothing the next. Separating strategy mistakes from content gaps made progress much quicker. I wasn't trying to learn new topics at the very last minute. I was really happy with the lessons.

    Soren Novak

  • 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

  • ACT

    Our child had a clear goal but no steady study routine. A good connection with the tutor developed quite quickly. The tutor's close attention to weaker areas gave us confidence. Mistakes became something to work on rather than something to feel bad about. Communication with the team was straightforward and our questions were answered. The overall experience was positive from beginning to end.

    Claudia Tavares

  • IB Diploma

    Even in a group lesson, the tutor knew where each of us stood. Breaking IB Business Management into smaller pieces worked much better for me. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Ebba Dudek

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500+ students supported|4.9/5 rating

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