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 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

  • AP Exams

    We didn't spend extra time on things I already knew. I finally understood what was going wrong in AP Physics 1. I went into the exam much calmer than I would have before. It was an intense period, but it was worth it.

    Caitlin Teague

  • AP Exams

    What annoyed me most was losing easy points because I rushed. I stopped doing a huge amount one week and nothing the next. We didn't spend extra time on things I already knew. I learned to separate the information needed for a decision from the extra detail. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Tiago Rojas

  • AP Exams

    What annoyed me most was losing easy points because I rushed. The feedback I received on AP World History was clear and practical. 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 found a better balance between regular school and exam preparation. I was really happy with the lessons.

    Sota Suzuki

  • AP Exams

    We wanted our child to keep up with the school pace in AP US History. The tutor's close attention to weaker areas gave us confidence. We were pleased with the support we received.

    Erik Horvat

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. With data-heavy questions, I began reading the task before getting lost in the table. Thanks to TestPrep for helping me stay on track.

    Colin Harrington

  • AP Exams

    Over time, AP Biology 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. Separating calculation errors from content gaps made revision more useful. I went into the exam much calmer than I would have before. Knowing what to study reduced a lot of the stress. Thank you to my tutor and the TestPrep team.

    Riccardo Leone

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. We didn't spend extra time on things I already knew. Past-paper questions showed me how different topics could appear together. I started tracking the type of mistake, not just the number of questions I completed. Having the lesson move at my pace made the process feel much easier. Thank you to my tutor and the TestPrep team.

    Carla Lemus

  • AP Exams

    We noticed that the resources kept changing during independent study. We quickly felt that the tutor was a good match.

    Austin Rafferty

  • AP Exams

    I chose AP Physics C: E&M this year and wanted to build a solid base from the beginning. Breaking AP Physics C: E&M into smaller pieces worked much better for me. I never felt awkward asking the same thing again. Once I understood the reasons behind the facts, the questions felt less random. I wasn't trying to learn new topics at the very last minute. It was an intense period, but it was worth it.

    Mitali Ghosh

  • AP Exams

    I was taking AP English Literature at school, but getting used to the exam questions took time. Breaking AP English Literature into smaller pieces worked much better for me. One bad mock no longer made me want to drop the whole plan. I learned not to spend the same amount of time on every line of a long text. I went into the exam much calmer than I would have before. Thank you to the tutor who stayed supportive until the end.

    Lautaro Meza

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. A realistic plan for the final weeks reduced stress for the whole family. We thank the tutor and the TestPrep team.

    Luka Lund

  • AP Exams

    I was taking AP Physics 2 at school, but getting used to the exam questions took time. We didn't spend extra time on things I already knew. I became much more careful with graphs, experiments and data-based questions. I started tracking the type of mistake, not just the number of questions I completed. Thank you to my tutor and the TestPrep team.

    Marleen Willems

  • 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

  • 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

  • AP Exams

    Everyone recommended different resources and I kept switching between them. The mocks showed where my time was actually being lost. Once I understood the reasons behind the facts, the questions felt less random. Going back to the lesson recordings helped when I forgot a small step. Full-length mocks helped me get used to the real exam pace. The preparation felt calmer than I expected.

    Thomas Caldwell

  • AP Exams

    I was taking AP Comparative Government at school, but getting used to the exam questions took time. Thank you to my tutor and the TestPrep team.

    Neha Hegde

  • AP Exams

    We noticed that the resources kept changing during independent study. Past-paper work continued without falling behind in current school topics. Joining lessons willingly was one of the clearest signs for us. Online lessons made it possible to continue without losing time on travel. We were happy with both the teaching and the communication.

    Goncalo Pires

  • AP Exams

    I was doing questions for AP Physics C: E&M on my own but never had a steady routine. One bad mock no longer made me want to drop the whole plan. I became much more careful with graphs, experiments and data-based questions. Thank you to my tutor and the TestPrep team.

    Anders Kaminski

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. We could make the workload lighter during busy weeks at school or university. My case responses became more organized and direct. Thanks to TestPrep for helping me stay on track.

    Miguel Valdez

  • AP Exams

    The feedback I received on AP English Literature was clear and practical. I found a better balance between regular school and exam preparation.

    Onur Kartal

  • AP Exams

    Anxiety became more visible as the exam got closer. Regular mocks built familiarity with the real exam pace. The overall experience was positive from beginning to end.

    Sari Hartono

  • AP Exams

    Our daughter needed regular support with AP European History. Preparation looked calmer and more organized closer to the exam. The tutor supported regular study, not only the lesson content. The class size kept our child from disappearing into the background. Flexible scheduling helped during a demanding school year. We were happy with both the teaching and the communication.

    Naina Pillai

  • AP Exams

    Full-length mocks helped me get used to the real exam pace. The feedback I received on AP Environmental Science was clear and practical. I started noticing the reason for a mistake much faster. Thanks to everyone who supported me.

    Kiara Ritchie

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