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

  • ACT

    When I started preparing for ACT, I wasn't sure what order to study things in. My tutor made it easy to ask questions from the first lesson. Questions from other students often helped me as well. I learned not to spend the same amount of time on every line of a long text. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Kazuki Yamada

  • LNAT

    Keeping up with LNAT while school was busy was harder than I expected. Thank you to my tutor and the TestPrep team.

    Arda Ucar

  • A-Level

    As the exam got closer, I wasn't sure what I should actually review. I never felt awkward asking the same thing again. Having the lesson move at my pace made the process feel much easier. Past-paper questions showed me how different topics could appear together. I wasn't trying to learn new topics at the very last minute. Thank you to my tutor and the TestPrep team.

    Evie Ainsworth

  • LNAT

    The class felt relaxed enough to ask questions without overthinking it. The feedback I received on Reading Comprehension was clear and practical. I started noticing the reason for a mistake much faster. The preparation felt calmer than I expected.

    Yuto Shimizu

  • IGCSE / GCSE

    My tutor could see my reasoning and usually found the source of an error quickly. I finally understood what was going wrong in IGCSE Physics. I left the exam feeling that I had done what I could. I'm glad I worked with my tutor through this process.

    Paolo Mendoza

  • IELTS Academic

    Breaking Academic Reading into smaller pieces worked much better for me. We reduced the memorized phrases so my answers sounded more natural. I started noticing the reason for a mistake much faster.

    Jisoo Ryu

  • Digital SAT

    I finally understood what was going wrong in Geometry & Trigonometry. I started seeing shorter solutions that were easier to check under time pressure. My confidence improved along with the results.

    Kohei Ishii

  • IB Diploma

    The feedback I received on IB Global Politics was clear and practical. Using the mark scheme to review my own answer was surprisingly helpful. I started noticing the reason for a mistake much faster.

    Lucie Fontaine

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. There was no overnight miracle, but the progress was easy to see.

    Harper Ramsey

  • UCAT

    Our child wasn't sure how to organize the preparation for UCAT. It was good to see confidence returning over time. Seeing the change in our child made us very happy.

    Marcus Sawyer

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. Thanks to TestPrep for helping me stay on track.

    Janelle Soriano

  • IMAT

    The feedback I received on Logical Reasoning was clear and practical. I started tracking the type of mistake, not just the number of questions I completed. Once I understood the reasons behind the facts, the questions felt less random. I became much more comfortable asking questions in class. My mock results gradually became more consistent. I'm genuinely thankful to my tutor for being patient.

    Zuzana Babic

  • A-Level

    Over time, A-Level Computer Science became one of the most organized parts of my A-Level preparation. Before coding, I began thinking about which structure actually fit the problem. I found a better balance between regular school and exam preparation.

    Maya Nolan

  • Digital SAT

    I was close to my target, but my results changed a lot from one test to the next. We didn't spend extra time on things I already knew. Knowing what to study reduced a lot of the stress. The preparation felt calmer than I expected.

    Jian Zhang

  • IGCSE / GCSE

    Keeping up with IGCSE / GCSE while school was busy was harder than I expected. I left the exam feeling that I had done what I could.

    Connor Spencer

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. Lesson times could fit around school, university or work. Source questions became easier once I noticed how small details affected the mark. I never felt awkward asking the same thing again. We didn't spend extra time on things I already knew. It was an intense period, but it was worth it.

    Petra Solberg

  • TOEFL iBT

    I finally understood what was going wrong in Listening. My tutor usually asked me to explain my thinking before stepping in. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. I went into the exam much calmer than I would have before. I was really happy with the lessons.

    Reina Kobayashi

  • AP Exams

    After the first attempt, we looked for a calmer plan for the retake. Communication with the team was straightforward and our questions were answered. Flexible scheduling helped during a demanding school year. A realistic plan for the final weeks reduced stress for the whole family. The plan was adjusted when school exams became busy. Seeing the change in our child made us very happy.

    Annika Ekstrom

  • IMAT

    Anxiety became more visible as the exam got closer. Communication with the team was straightforward and our questions were answered. Being able to fit lessons around school made the process easier. The lessons started being followed without constant reminders from us. Seeing the change in our child made us very happy.

    Haruto Nakajima

  • Digital SAT

    What annoyed me most was losing easy points because I rushed. We could make the workload lighter during busy weeks at school or university. We didn't spend extra time on things I already knew. 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 was really happy with the lessons.

    Levi Moroney

  • UCAT

    After the first attempt, we looked for a calmer plan for the retake. Preparation looked calmer and more organized closer to the exam.

    Cole Montgomery

  • TOEFL iBT

    Over time, Integrated Tasks became one of the most organized parts of my TOEFL iBT preparation. I never felt awkward asking the same thing again. We reduced the memorized phrases so my answers sounded more natural. I left the exam feeling that I had done what I could. My mock results gradually became more consistent. The preparation felt calmer than I expected.

    Erin Clarke

  • PTE Academic

    Our daughter needed regular support with Computer-Based Practice. It was good to see confidence returning over time. We would recommend the program to students and families in a similar situation.

    Bonnie Harrison

  • GRE General

    I had collected too many resources without knowing when to use any of them. Having the lesson move at my pace made the process feel much easier. Practicing in the real exam format made test day feel much less unfamiliar. I never felt awkward asking the same thing again. The preparation felt calmer than I expected.

    Chloe Connolly

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