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

  • UCAT

    When I started preparing for UCAT, I wasn't sure what order to study things in. Breaking Time Management into smaller pieces worked much better for me. We could make the workload lighter during busy weeks at school or university. Sorting mistakes after each mock changed the way I studied. Knowing what to study reduced a lot of the stress. Thanks to everyone who supported me.

    Henrique Ramos

  • LSAT

    I stopped choosing answers by feel and started looking for evidence in the passage. It was an intense period, but it was worth it.

    Valentina Ocampo

  • IGCSE / GCSE

    I was doing questions for IGCSE English Literature on my own but never had a steady routine. Full-length mocks helped me get used to the real exam pace. I learned not to spend the same amount of time on every line of a long text. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. The mocks showed where my time was actually being lost. I'm glad I worked with my tutor through this process.

    Parker Mercer

  • ACT

    Seeing several versions of the same topic made unfamiliar questions less stressful. It was an intense period, but it was worth it.

    Minseok Pyo

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. We could make the workload lighter during busy weeks at school or university. My case responses became more organized and direct. Thanks to TestPrep for helping me stay on track.

    Miguel Valdez

  • GRE General

    The feedback I received on Section-Adaptive Strategy was clear and practical. I started noticing the reason for a mistake much faster.

    Oscar Murray

  • 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

  • PTE Academic

    Joining lessons willingly was one of the clearest signs for us. A good connection with the tutor developed quite quickly. Thank you sincerely to everyone involved.

    Arianna Palmieri

  • PTE Academic

    Our child wasn't sure how to organize the preparation for PTE Academic. Preparation looked calmer and more organized closer to the exam. Mistakes became something to work on rather than something to feel bad about. Being able to fit lessons around school made the process easier. The lessons started being followed without constant reminders from us. We quickly felt that the tutor was a good match.

    Callum Webster

  • IB Diploma

    I chose IB World History this year and wanted to build a solid base from the beginning. Keeping school units and exam preparation in the same plan worked really well. I went into the exam much calmer than I would have before. The preparation felt calmer than I expected.

    Kenta Maeda

  • GRE General

    Balancing GRE General preparation with university and work was harder than I expected. Going back to the lesson recordings helped when I forgot a small step. I learned not to spend the same amount of time on every line of a long text. Thanks to TestPrep for helping me stay on track.

    Lara Lambert

  • A-Level

    After my first attempt, I wanted the second round of preparation to feel more organized. I never felt awkward asking the same thing again. Past-paper questions showed me how different topics could appear together. A big thank you to my tutor for all the support :)

    Julian Jacobs

  • SSAT

    A good connection with the tutor developed quite quickly. We were pleased with the support we received.

    Taeho Min

  • AP Exams

    The feedback I received on AP English Literature was clear and practical. I found a better balance between regular school and exam preparation.

    Onur Kartal

  • AP Exams

    Anxiety became more visible as the exam got closer. Regular mocks built familiarity with the real exam pace. The overall experience was positive from beginning to end.

    Sari Hartono

  • IB Diploma

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Working across different difficulty levels made new questions feel less surprising. A quick check after each answer helped me catch small mistakes. My tutor made it easy to ask questions from the first lesson. After enough examples of the same question type, the repeated mistakes decreased. The preparation felt calmer than I expected.

    Pippa Ritchie

  • Digital SAT

    I was doing questions for Problem Solving & Data Analysis 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. The preparation felt calmer than I expected.

    Skye Jenkins

  • Digital SAT

    I was doing questions for Geometry & Trigonometry on my own but never had a steady routine. My tutor could see my reasoning and usually found the source of an error quickly. My preparation became much more regular and easier to track. It was an intense period, but it was worth it.

    Joris Busch

  • IB Diploma

    Focusing on past papers and mock review worked well near the exam. Over time, Internal Assessment (IA) became one of the most organized parts of my IB Diploma preparation. Knowing what to study reduced a lot of the stress. I'm glad I worked with my tutor through this process.

    Rasmus Ahlberg

  • A-Level

    Connecting examples back to the main point made my writing more consistent. I'm glad I worked with my tutor through this process.

    Matias Cardenas

  • IB Diploma

    Over time, IB Business Management became one of the most organized parts of my IB Diploma preparation. With data-heavy questions, I began reading the task before getting lost in the table. I started noticing the reason for a mistake much faster.

    Chloe Atkins

  • ACT

    Everyone recommended different resources and I kept switching between them. After each test, we looked beyond the score and reviewed the type of each mistake. My preparation became much more regular and easier to track. The preparation felt calmer than I expected.

    Sebastian Arriaga

  • A-Level

    Anxiety became more visible as the exam got closer. The tutor's calm approach helped protect motivation during the intensive period. We were pleased with the support we received.

    Jiyeon Ma

  • IELTS Academic

    What annoyed me most was losing easy points because I rushed. Going back to the lesson recordings helped when I forgot a small step. I developed a clearer way to return to the text during reading questions. A big thank you to my tutor for all the support :)

    Pavel Dvorak

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500+ students supported|4.9/5 rating

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