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

    Our son's school schedule was already very busy. It was good to see confidence returning over time. We were pleased with the support we received.

    Selin Ucar

  • AP Exams

    I chose AP Physics 1 this year and wanted to build a solid base from the beginning. My tutor made it easy to ask questions from the first lesson. Lesson times could fit around school, university or work. I became much more careful with graphs, experiments and data-based questions. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Caio Ramos

  • AP Exams

    Lesson times could fit around school, university or work. Breaking AP Biology into smaller pieces worked much better for me. I found a better balance between regular school and exam preparation. The preparation felt calmer than I expected.

    Greta Scholz

  • AP Exams

    Our child had a clear goal but no steady study routine. Flexible scheduling helped during a demanding school year. We thank the tutor and the TestPrep team.

    Jian Xia

  • AP Exams

    Our daughter needed regular support with AP English Literature. It was good to see confidence returning over time. We were happy with both the teaching and the communication.

    Jimena Coronel

  • AP Exams

    The lessons started being followed without constant reminders from us. Seeing the change in our child made us very happy.

    Callum Garland

  • AP Exams

    Anxiety became more visible as the exam got closer. Mistakes became something to work on rather than something to feel bad about. We were pleased with the support we received.

    Isla Teague

  • AP Exams

    Mistakes became something to work on rather than something to feel bad about. We would recommend the program to students and families in a similar situation.

    Lachlan Hume

  • AP Exams

    I was doing questions for AP Comparative Government on my own but never had a steady routine. Thanks to TestPrep for helping me stay on track.

    Abbey Bevan

  • AP Exams

    What annoyed me most was losing easy points because I rushed. Even in a group lesson, the tutor knew where each of us stood. I found a better balance between regular school and exam preparation. A big thank you to my tutor for all the support :)

    Chase Fletcher

  • AP Exams

    Even in a group lesson, the tutor knew where each of us stood. I finally understood what was going wrong in AP Environmental Science. Knowing what to study reduced a lot of the stress. It was an intense period, but it was worth it.

    Teresa Brito

  • AP Exams

    I finally understood what was going wrong in AP Statistics. I started seeing shorter solutions that were easier to check under time pressure. My preparation became much more regular and easier to track.

    Lars Schafer

  • AP Exams

    The feedback I received on AP Calculus BC was clear and practical. My mock results gradually became more consistent.

    Bo Huang

  • AP Exams

    I chose AP Physics C: Mechanics this year and wanted to build a solid base from the beginning. One bad mock no longer made me want to drop the whole plan. Once I understood the reasons behind the facts, the questions felt less random. Thank you to my tutor and the TestPrep team.

    Lena Mulder

  • AP Exams

    Our daughter needed regular support with AP World History. Communication with the team was straightforward and our questions were answered. A realistic plan for the final weeks reduced stress for the whole family. It was good to see confidence returning over time. Thank you sincerely to everyone involved.

    Maja Hendriks

  • AP Exams

    I was doing questions for AP Microeconomics on my own but never had a steady routine. Thanks to TestPrep for helping me stay on track.

    Nana Ogawa

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. Near the exam, it was clear what to keep doing and what to stop. Lesson times could fit around school, university or work. I started seeing shorter solutions that were easier to check under time pressure. After a while, the questions started to feel much more familiar. It was an intense period, but it was worth it.

    Ines Guerreiro

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. We were able to follow the mock results regularly. Joining lessons willingly was one of the clearest signs for us. Returning to actual gaps instead of restarting everything saved time. The lessons started being followed without constant reminders from us. Seeing the change in our child made us very happy.

    Bayu Kurniawan

  • AP Exams

    We focused more on understanding what the problem asked than memorizing formulas. It was an intense period, but it was worth it.

    Catarina Campos

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. The class felt relaxed enough to ask questions without overthinking it. Connecting examples back to the main point made my writing more consistent. One bad mock no longer made me want to drop the whole plan. Questions from other students often helped me as well. I'm glad I worked with my tutor through this process.

    Beatriz Cunha

  • AP Exams

    Our child wasn't sure how to organize the preparation for AP Exams. We were able to follow the mock results regularly. Thank you sincerely to everyone involved.

    Romain Masson

  • AP Exams

    Everyone recommended different resources and I kept switching between them. Lesson times could fit around school, university or work. I left the exam feeling that I had done what I could. A big thank you to my tutor for all the support :)

    Rodrigo Nascimento

  • AP Exams

    I was taking AP English Language at school, but getting used to the exam questions took time. It was an intense period, but it was worth it.

    Mai Vu

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. My mock results gradually became more consistent.

    Pranav Dhar

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500+ students supported|4.9/5 rating

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