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

    The feedback I received on IB Economics was clear and practical. Near the exam, it was clear what to keep doing and what to stop. With data-heavy questions, I began reading the task before getting lost in the table. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Nils Prochazka

  • AP Exams

    Breaking AP European History into smaller pieces worked much better for me. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Connecting examples back to the main point made my writing more consistent. I went into the exam much calmer than I would have before. My confidence improved along with the results. Thank you to my tutor and the TestPrep team.

    Marcus Hawkins

  • AP Exams

    I finally understood what was going wrong in AP World History. My confidence improved along with the results.

    Enzo Aquino

  • SSAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. We could make the workload lighter during busy weeks at school or university. Lesson times could fit around school, university or work. A lot of my mistakes came from rushing through the wording of the question. I went into the exam much calmer than I would have before. I'm genuinely thankful to my tutor for being patient.

    Indah Permana

  • IELTS Academic

    Questions from other students often helped me as well. I finally understood what was going wrong in Writing Task 2. My mock results gradually became more consistent. I was really happy with the lessons.

    Paula Pires

  • LNAT

    Online lessons made it possible to continue without losing time on travel. We were happy with both the teaching and the communication.

    Fabio Vieira

  • AP Exams

    Anxiety became more visible as the exam got closer. We were able to follow the mock results regularly.

    Leonardo Cordero

  • LSAT

    In Logical Reasoning, timing was costing me more points than the content itself. Having the lesson move at my pace made the process feel much easier. A lot of my mistakes came from rushing through the wording of the question. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. My tutor could see my reasoning and usually found the source of an error quickly. Thanks to TestPrep for helping me stay on track.

    Kiara Basu

  • A-Level

    With data-heavy questions, I began reading the task before getting lost in the table. I was really happy with the lessons.

    Dylan Yates

  • IGCSE / GCSE

    The group never had more than six students, so it was easy to stay involved. Breaking IGCSE Biology into smaller pieces worked much better for me. My mock results gradually became more consistent. Thank you to my tutor and the TestPrep team.

    Megan Warren

  • PTE Academic

    I was taking Computer-Based Practice at school, but getting used to the exam questions took time. We could make the workload lighter during busy weeks at school or university. After each test, we looked beyond the score and reviewed the type of each mistake. Predicting the output helped me catch small logic errors. I found a better balance between regular school and exam preparation. I was really happy with the lessons.

    Giulia Testa

  • IELTS Academic

    I developed a clearer way to return to the text during reading questions. Thanks to everyone who supported me.

    Nathan McLean

  • GMAT Focus

    The feedback I received on Data Sufficiency was clear and practical. After a while, the questions started to feel much more familiar.

    Serena Gallo

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. I used the question bank regularly to return to weaker topics. Connecting examples back to the main point made my writing more consistent. By the end of each lesson, I knew what I was supposed to do during the week. After enough examples of the same question type, the repeated mistakes decreased. It was an intense period, but it was worth it.

    Andrea Piras

  • IB Diploma

    I was doing questions for IB Turkish A on my own but never had a steady routine. I wasn't trying to learn new topics at the very last minute.

    Aisling Caldwell

  • IGCSE / GCSE

    Keeping up with IGCSE / GCSE while school was busy was harder than I expected. We balanced current school topics with past-paper practice. My confidence improved along with the results. It was an intense period, but it was worth it.

    Toby Redfern

  • A-Level

    Our daughter needed regular support with A-Level Further Mathematics. The lessons started being followed without constant reminders from us.

    Minh Le

  • LNAT

    Lesson times could fit around school, university or work. Over time, Argument Analysis became one of the most organized parts of my LNAT preparation. My preparation became much more regular and easier to track. I was really happy with the lessons.

    Nuno Brito

  • Digital SAT

    Keeping up with Digital SAT while school was busy was harder than I expected. Knowing what to study reduced a lot of the stress.

    Ruby Fletcher

  • AP Exams

    Our child had a clear goal but no steady study routine. Joining lessons willingly was one of the clearest signs for us. Online lessons made it possible to continue without losing time on travel. Full-length tests showed how time was being used across the exam. The overall experience was positive from beginning to end.

    Huong Hoang

  • AP Exams

    I was doing questions for AP Computer Science A on my own but never had a steady routine. I never felt awkward asking the same thing again. During the intensive review, we returned to real gaps instead of restarting everything. The lessons where I found the bug myself were the ones I remembered best. I became much more comfortable asking questions in class. Thank you to my tutor and the TestPrep team.

    Femke Willems

  • IGCSE / GCSE

    I was doing questions for IGCSE Additional Mathematics on my own but never had a steady routine. It was an intense period, but it was worth it.

    Emilia Becerra

  • SSAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. I finally understood what was going wrong in Reading. We could make the workload lighter during busy weeks at school or university. My written answers became shorter, clearer and easier to follow. I went into the exam much calmer than I would have before. Thanks to TestPrep for helping me stay on track.

    Brianna Merritt

  • PTE Academic

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. I started tracking the type of mistake, not just the number of questions I completed. Questions from other students often helped me as well. The writing feedback helped me stop repeating the same sentence-level errors. Knowing what to study reduced a lot of the stress. It was an intense period, but it was worth it.

    Noelia Montalvo

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500+ students supported|4.9/5 rating

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