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

  • SSAT

    The feedback I received on Middle Level was clear and practical. My confidence improved along with the results.

    Joel Kingston

  • A-Level

    Anxiety became more visible as the exam got closer. Joining lessons willingly was one of the clearest signs for us. Regular mocks built familiarity with the real exam pace. Communication with the team was straightforward and our questions were answered. 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.

    Leon Vos

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. Over time, A-Level Sociology became one of the most organized parts of my A-Level preparation. I started tracking the type of mistake, not just the number of questions I completed. Using the mark scheme to review my own answer was surprisingly helpful. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Zoe Delaney

  • YÖS / TR-YÖS

    At the beginning, we knew very little about the YÖS / TR-YÖS system as parents. We were able to follow the mock results regularly. Communication with the team was straightforward and our questions were answered. The tutor's close attention to weaker areas gave us confidence. It was good to see confidence returning over time. We were happy with both the teaching and the communication.

    Miguel Barros

  • AP Exams

    During the intensive review, we returned to real gaps instead of restarting everything. Over time, AP Macroeconomics became one of the most organized parts of my AP Exams preparation. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Sofia Conti

  • ACT

    After my first attempt, I wanted the second round of preparation to feel more organized. After a while, the questions started to feel much more familiar.

    Freya Connolly

  • IGCSE / GCSE

    I finally understood what was going wrong in IGCSE Additional Mathematics. A quick check after each answer helped me catch small mistakes. There was no overnight miracle, but the progress was easy to see.

    Jordan Tarrant

  • ACT

    After my first attempt, I wanted the second round of preparation to feel more organized. After each test, we looked beyond the score and reviewed the type of each mistake. Seeing several versions of the same topic made unfamiliar questions less stressful. We could make the workload lighter during busy weeks at school or university. The mocks showed where my time was actually being lost. Thank you to my tutor and the TestPrep team.

    Afonso Guerreiro

  • IB Diploma

    When I started preparing for IB Diploma, I wasn't sure what order to study things in. Knowing what to study reduced a lot of the stress.

    Tahlia Moroney

  • IB Diploma

    I was doing questions for IB Economics on my own but never had a steady routine. Lesson times could fit around school, university or work. I learned to separate the information needed for a decision from the extra detail. Near the exam, it was clear what to keep doing and what to stop. Having the lesson move at my pace made the process feel much easier. The preparation felt calmer than I expected.

    Jenna Abbott

  • PTE Academic

    After the first attempt, we looked for a calmer plan for the retake. We quickly felt that the tutor was a good match.

    Elin Vukovic

  • IGCSE / GCSE

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. My preparation became much more regular and easier to track.

    Yuna Cho

  • IB Diploma

    Breaking IB Biology into smaller pieces worked much better for me. One bad mock no longer made me want to drop the whole plan. Separating calculation errors from content gaps made revision more useful. After a while, the questions started to feel much more familiar. It was an intense period, but it was worth it.

    Isadora Monteiro

  • IGCSE / GCSE

    Practicing in the real exam format made test day feel much less unfamiliar. A big thank you to my tutor for all the support :)

    Luca Valentini

  • LNAT

    When I started preparing for LNAT, I wasn't sure what order to study things in. The mocks showed where my time was actually being lost. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Astrid Pavlovic

  • YÖS / TR-YÖS

    Over time, Mathematics became one of the most organized parts of my YÖS / TR-YÖS preparation. A quick check after each answer helped me catch small mistakes. There was no overnight miracle, but the progress was easy to see.

    Teagan Prescott

  • A-Level

    Everyone recommended different resources and I kept switching between them. Near the exam, it was clear what to keep doing and what to stop. I started seeing shorter solutions that were easier to check under time pressure. The preparation felt calmer than I expected.

    Felipe Nascimento

  • IB Diploma

    I was taking Theory of Knowledge (TOK) at school, but getting used to the exam questions took time. I left the exam feeling that I had done what I could.

    Burak Aktas

  • IB Diploma

    The feedback I received on IB Turkish A was clear and practical. I left the exam feeling that I had done what I could.

    Lautaro Palacios

  • IB Diploma

    I was taking IB Computer Science at school, but getting used to the exam questions took time. The class felt relaxed enough to ask questions without overthinking it. I left the exam feeling that I had done what I could. I'm glad I worked with my tutor through this process.

    Samuel Warren

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. My confidence improved along with the results.

    Natalia Valdez

  • A-Level

    When I started preparing for A-Level, I wasn't sure what order to study things in. Knowing what to study reduced a lot of the stress.

    Nana Tanaka

  • SSAT

    Breaking Reading into smaller pieces worked much better for me. My tutor made it easy to ask questions from the first lesson. A lot of my mistakes came from rushing through the wording of the question. I left the exam feeling that I had done what I could. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Fraser Warren

  • IGCSE / GCSE

    I finally understood what was going wrong in IGCSE Psychology. I started noticing the reason for a mistake much faster.

    Jun Zheng

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500+ students supported|4.9/5 rating

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