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

    I was doing questions for Upper Level on my own but never had a steady routine. I became much more comfortable asking questions in class.

    Erdem Duman

  • SSAT

    Mistakes became something to work on rather than something to feel bad about. We were able to follow the mock results regularly. We were happy with both the teaching and the communication.

    Johanna Meier

  • SSAT

    Breaking Elementary Level into smaller pieces worked much better for me. I stopped doing a huge amount one week and nothing the next. Timed work showed exactly which section was slowing me down. I left the exam feeling that I had done what I could. Knowing what to study reduced a lot of the stress. Thank you to the tutor who stayed supportive until the end.

    Cristian Escobar

  • SSAT

    A quick check after each answer helped me catch small mistakes. Thanks to TestPrep for helping me stay on track.

    Holly Stanton

  • SSAT

    Anxiety became more visible as the exam got closer. A good connection with the tutor developed quite quickly. Online lessons made it possible to continue without losing time on travel. The tutor's calm approach helped protect motivation during the intensive period. Joining lessons willingly was one of the clearest signs for us. The overall experience was positive from beginning to end.

    Raul Tavares

  • SSAT

    After the first attempt, we looked for a calmer plan for the retake. The plan was adjusted when school exams became busy.

    Toby Whitlam

  • SSAT

    Our son's school schedule was already very busy. Preparation looked calmer and more organized closer to the exam. Online lessons made it possible to continue without losing time on travel. With no more than six students, the tutor had time for everyone. We were happy with both the teaching and the communication.

    Joao Tavares

  • 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. Having the lesson move at my pace made the process feel much easier. I worked on keeping a steady pace instead of rushing the easy questions. I became much more comfortable asking questions in class. I was really happy with the lessons.

    Intan Nasution

  • SSAT

    As the exam got closer, I wasn't sure what I should actually review. My preparation became much more regular and easier to track.

    Erin Langley

  • SSAT

    I was doing questions for Writing Sample on my own but never had a steady routine. Near the exam, it was clear what to keep doing and what to stop. Discussing why the other choices were wrong helped more than I expected. A big thank you to my tutor for all the support :)

    Piper Reynolds

  • SSAT

    I finally understood what was going wrong in Writing Sample. I learned not to spend the same amount of time on every line of a long text. I found a better balance between regular school and exam preparation.

    Georgia Garland

  • SSAT

    Over time, Middle Level became one of the most organized parts of my SSAT preparation. My confidence improved along with the results.

    Logan Russell

  • SSAT

    We weren't sure whether online lessons would be effective. We were able to follow the mock results regularly.

    Qianyu Du

  • SSAT

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

    Brodie Redfern

  • SSAT

    After my first attempt, I wanted the second round of preparation to feel more organized. Even in a group lesson, the tutor knew where each of us stood. Practicing in the real exam format made test day feel much less unfamiliar. One bad mock no longer made me want to drop the whole plan. Questions from other students often helped me as well. Thanks to everyone who supported me.

    Kai Lin

  • SSAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Breaking Upper Level into smaller pieces worked much better for me. By the end of each lesson, I knew what I was supposed to do during the week. Timed work showed exactly which section was slowing me down. I left the exam feeling that I had done what I could. The preparation felt calmer than I expected.

    Bastien Gauthier

  • SSAT

    After the first attempt, we looked for a calmer plan for the retake. Mistakes became something to work on rather than something to feel bad about. The question bank made independent work between lessons much clearer. Communication with the team was straightforward and our questions were answered. Thank you sincerely to everyone involved.

    Joel Ingram

  • SSAT

    I can now decide much faster when to move on from a question. I'm glad I worked with my tutor through this process.

    Alana Clarke

  • SSAT

    As the exam got closer, I wasn't sure what I should actually review. Lesson times could fit around school, university or work. A quick check after each answer helped me catch small mistakes. I started tracking the type of mistake, not just the number of questions I completed. My tutor could see my reasoning and usually found the source of an error quickly. Thank you to my tutor and the TestPrep team.

    Hamish McIntyre

  • SSAT

    I learned not to spend the same amount of time on every line of a long text. It was an intense period, but it was worth it.

    Marco Gatti

  • SSAT

    Over time, Middle Level became one of the most organized parts of my SSAT preparation. I can now decide much faster when to move on from a question. My mock results gradually became more consistent.

    Kaan Ekinci

  • SSAT

    When I started preparing for SSAT, I wasn't sure what order to study things in. Thank you to my tutor and the TestPrep team.

    Chiara Gatti

  • SSAT

    Our child wasn't sure how to organize the preparation for SSAT. Thank you sincerely to everyone involved.

    Thanawat Wongchai

  • SSAT

    As the exam got closer, I wasn't sure what I should actually review. After each test, we looked beyond the score and reviewed the type of each mistake. Learning when to leave a hard question made a real difference to my timing. Near the exam, it was clear what to keep doing and what to stop. Experiencing the exam format beforehand made test day much less stressful. I was really happy with the lessons.

    Luciana Valdez

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500+ students supported|4.9/5 rating

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