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

    Our child wasn't sure how to organize the preparation for IB Diploma. The lessons started being followed without constant reminders from us.

    Tomas Solis

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. Over time, IGCSE Mathematics became one of the most organized parts of my IGCSE / GCSE preparation. I stopped doing a huge amount one week and nothing the next. We focused more on understanding what the problem asked than memorizing formulas. My confidence improved along with the results. The preparation felt calmer than I expected.

    Cristian Mena

  • TOEFL iBT

    At the beginning, we knew very little about the TOEFL iBT system as parents. Flexible scheduling helped during a demanding school year. Thank you sincerely to everyone involved.

    Sungmin Kim

  • ACT

    Anxiety became more visible as the exam got closer. We quickly felt that the tutor was a good match.

    Sergio Gallardo

  • AP Exams

    As the exam got closer, I wasn't sure what I should actually review. Over time, AP World History became one of the most organized parts of my AP Exams preparation. 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. Knowing what to study reduced a lot of the stress. Thanks to everyone who supported me.

    Dylan Garland

  • Digital SAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. There was no overnight miracle, but the progress was easy to see.

    Niran Raksakul

  • PTE Academic

    We reduced the memorized phrases so my answers sounded more natural. Thank you to my tutor and the TestPrep team.

    Holly Harrison

  • IB Diploma

    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.

    Catarina Barros

  • IGCSE / GCSE

    I was taking IGCSE Psychology at school, but getting used to the exam questions took time. 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. A big thank you to my tutor for all the support :)

    Ingrid Strand

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. A big thank you to my tutor for all the support :)

    Matilda Banfield

  • ACT

    The feedback I received on ACT Science was clear and practical. Separating calculation errors from content gaps made revision more useful. I became much more comfortable asking questions in class.

    Luciana Carranza

  • LNAT

    We wanted our child to keep up with the school pace in Section A MCQ. Online lessons made it possible to continue without losing time on travel. We would recommend the program to students and families in a similar situation.

    Nicolas Acosta

  • A-Level

    After my first attempt, I wanted the second round of preparation to feel more organized. Choosing questions by topic made my practice time much more useful. I became much more comfortable asking questions in class. It was an intense period, but it was worth it.

    Abbey Tully

  • A-Level

    At the beginning, we knew very little about the A-Level system as parents. A good connection with the tutor developed quite quickly. The small group offered peer learning without making it hard to ask questions. The plan was adjusted when school exams became busy. We were happy with both the teaching and the communication.

    Chai Dechawat

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. I never felt awkward asking the same thing again. After each test, we looked beyond the score and reviewed the type of each mistake. I became much more careful with graphs, experiments and data-based questions. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Florian Gerard

  • AP Exams

    Breaking AP Microeconomics into smaller pieces worked much better for me. I found a better balance between regular school and exam preparation.

    Holly Lockwood

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. We would recommend the program to students and families in a similar situation.

    Pippa Paterson

  • AP Exams

    The feedback I received on AP Biology was clear and practical. I wasn't trying to learn new topics at the very last minute.

    Owen Winslow

  • IGCSE / GCSE

    The IGCSE / GCSE format felt unnecessarily confusing at first. I left the exam feeling that I had done what I could.

    Tuan Nguyen

  • AP Exams

    Over time, AP Psychology became one of the most organized parts of my AP Exams preparation. I learned to make a short plan before starting a long response. Knowing what to study reduced a lot of the stress.

    Maja Meijer

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. Even in a group lesson, the tutor knew where each of us stood. Predicting the output helped me catch small logic errors. I never felt awkward asking the same thing again. The class felt relaxed enough to ask questions without overthinking it. The preparation felt calmer than I expected.

    Afonso Correia

  • AP Exams

    Source questions became easier once I noticed how small details affected the mark. I was really happy with the lessons.

    Noemie Picard

  • PTE Academic

    I was doing questions for Speaking & Writing on my own but never had a steady routine. A big thank you to my tutor for all the support :)

    Karina Benes

  • TOEFL iBT

    I had been studying alone, but my results stopped improving after a point. After a while, the questions started to feel much more familiar.

    Joel Jenkins

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500+ students supported|4.9/5 rating

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