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

  • AP Exams

    I finally understood what was going wrong in AP Seminar. Breaking the draft into smaller parts made it feel much more doable. I left the exam feeling that I had done what I could.

    Jade Aldridge

  • TOEFL iBT

    Breaking Speaking into smaller pieces worked much better for me. The writing feedback helped me stop repeating the same sentence-level errors. I went into the exam much calmer than I would have before.

    Hyunwoo Cho

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. The plan changed with my mock and homework results, so the work never felt random. I used the question bank regularly to return to weaker topics. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I left the exam feeling that I had done what I could. I was really happy with the lessons.

    Owen Dalton

  • IGCSE / GCSE

    We wanted our child to keep up with the school pace in IGCSE Psychology. We were able to follow the mock results regularly. The tutor's close attention to weaker areas gave us confidence. A good connection with the tutor developed quite quickly. Online lessons made it possible to continue without losing time on travel. Thank you sincerely to everyone involved.

    Tove Peric

  • ACT

    Even in a group lesson, the tutor knew where each of us stood. Over time, ACT Math became one of the most organized parts of my ACT preparation. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Noemi Gallo

  • SSAT

    The SSAT format felt unnecessarily confusing at first. Over time, Elementary Level became one of the most organized parts of my SSAT preparation. My tutor made it easy to ask questions from the first lesson. Practicing in the real exam format made test day feel much less unfamiliar. There was no overnight miracle, but the progress was easy to see. The preparation felt calmer than I expected.

    Matteo Serra

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. Online lessons made it possible to continue without losing time on travel.

    Agustin Portillo

  • AP Exams

    I was doing questions for AP Human Geography on my own but never had a steady routine. Over time, AP Human Geography became one of the most organized parts of my AP Exams preparation. Near the exam, it was clear what to keep doing and what to stop. Using the mark scheme to review my own answer was surprisingly helpful. My preparation became much more regular and easier to track. The preparation felt calmer than I expected.

    Ethan Holloway

  • AP Exams

    I was doing questions for AP Seminar on my own but never had a steady routine. After enough examples of the same question type, the repeated mistakes decreased. I realized that choosing a topic, researching and revising each needed its own deadline. Going back to the lesson recordings helped when I forgot a small step. The preparation felt calmer than I expected.

    Grace Brennan

  • IELTS Academic

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Choosing questions by topic made my practice time much more useful. There was no overnight miracle, but the progress was easy to see. I was really happy with the lessons.

    Dario Nowak

  • UCAT

    After my first attempt, I wanted the second round of preparation to feel more organized. My preparation became much more regular and easier to track.

    Nuno Rojas

  • YÖS / TR-YÖS

    When I started preparing for YÖS / TR-YÖS, I wasn't sure what order to study things in. My preparation became much more regular and easier to track.

    Siddharth Sen

  • IMAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. After enough examples of the same question type, the repeated mistakes decreased. I went into the exam much calmer than I would have before. Thanks to TestPrep for helping me stay on track.

    Anong Kanjana

  • IGCSE / GCSE

    Over time, IGCSE Turkish became one of the most organized parts of my IGCSE / GCSE preparation. I can now decide much faster when to move on from a question. My mock results gradually became more consistent.

    Finley Caldwell

  • AP Exams

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

    Imogen Goodall

  • AP Exams

    Source questions became easier once I noticed how small details affected the mark. I'm glad I worked with my tutor through this process.

    Paige Finley

  • GMAT Focus

    I came back to Data Sufficiency after a long break and wasn't sure where to begin. The group never had more than six students, so it was easy to stay involved. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Khoa Ngo

  • AP Exams

    I was doing questions for AP US Government on my own but never had a steady routine. My tutor could see my reasoning and usually found the source of an error quickly. Source questions became easier once I noticed how small details affected the mark. My tutor made it easy to ask questions from the first lesson. Lesson times could fit around school, university or work. I'm genuinely thankful to my tutor for being patient.

    Hiroto Takeuchi

  • IGCSE / GCSE

    We didn't spend extra time on things I already knew. I finally understood what was going wrong in IGCSE Computer Science. My mock results gradually became more consistent. I'm glad I worked with my tutor through this process.

    Valentin Aubert

  • PTE Academic

    Over time, Repeat Sentence became one of the most organized parts of my PTE Academic preparation. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. There was no overnight miracle, but the progress was easy to see.

    Hannah Langley

  • AP Exams

    We noticed that the resources kept changing during independent study. We would recommend the program to students and families in a similar situation.

    Lukas Busch

  • UCAT

    I finally understood what was going wrong in Time Management. Sorting mistakes after each mock changed the way I studied. Knowing what to study reduced a lot of the stress.

    Grant Donovan

  • IGCSE / GCSE

    We weren't sure whether online lessons would be effective. Being able to fit lessons around school made the process easier. We were happy with both the teaching and the communication.

    Federico Bernardi

  • ACT

    At the beginning, we knew very little about the ACT system as parents. The question bank made independent work between lessons much clearer. It was good to see confidence returning over time. Mistakes became something to work on rather than something to feel bad about. We were happy with both the teaching and the communication.

    Ramiro Aguirre

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500+ students supported|4.9/5 rating

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