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

  • GMAT Focus

    I knew my target, but I didn't have a realistic routine for GMAT Focus. After a while, the questions started to feel much more familiar.

    Takumi Yoshida

  • IB Diploma

    We wanted our child to keep up with the school pace in Theory of Knowledge (TOK). The tutor's close attention to weaker areas gave us confidence. The lessons started being followed without constant reminders from us. The tutor supported regular study, not only the lesson content. Seeing the change in our child made us very happy.

    Jihye Pyo

  • Digital SAT

    I was doing questions for Information & Ideas on my own but never had a steady routine. Having the lesson move at my pace made the process feel much easier. I went into the exam much calmer than I would have before. Thanks to TestPrep for helping me stay on track.

    Hina Ito

  • IB Diploma

    I finally understood what was going wrong in IB Economics. We could make the workload lighter during busy weeks at school or university. I learned to separate the information needed for a decision from the extra detail. There was no overnight miracle, but the progress was easy to see. I started noticing the reason for a mistake much faster. The preparation felt calmer than I expected.

    Joel Warren

  • IGCSE / GCSE

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. I used the question bank regularly to return to weaker topics. My mock results gradually became more consistent. I was really happy with the lessons.

    Ashleigh Wakefield

  • IMAT

    We wanted our child to keep up with the school pace in Logical Reasoning. Individual lesson time was used around our child's actual needs. We were pleased with the support we received.

    Alan Quiroga

  • AP Exams

    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. Source questions became easier once I noticed how small details affected the mark. It was an intense period, but it was worth it.

    Lihua Dong

  • SSAT

    Over time, Middle Level became one of the most organized parts of my SSAT preparation. Knowing what to study reduced a lot of the stress.

    Zihan Zhao

  • AP Exams

    The feedback I received on AP Art History was clear and practical. By the end of each lesson, I knew what I was supposed to do during the week. I began using more specific examples when explaining my ideas. I left the exam feeling that I had done what I could. I found a better balance between regular school and exam preparation. Thank you to the tutor who stayed supportive until the end.

    Nuria Rojas

  • GRE General

    My mock scores were inconsistent, so it was hard to judge my actual level. Even in a group lesson, the tutor knew where each of us stood. Learning when to leave a hard question made a real difference to my timing. I never felt awkward asking the same thing again. The group never had more than six students, so it was easy to stay involved. I'm genuinely thankful to my tutor for being patient.

    Alejandra Loyola

  • A-Level

    It was good to see confidence returning over time. Online lessons made it possible to continue without losing time on travel. We were pleased with the support we received.

    Sloane Talbot

  • PTE Academic

    We wanted our child to keep up with the school pace in Repeat Sentence. Communication with the team was straightforward and our questions were answered. The overall experience was positive from beginning to end.

    Facundo Arriaga

  • A-Level

    After my first attempt, I wanted the second round of preparation to feel more organized. I finally understood what was going wrong in A-Level Business. Going back to the lesson recordings helped when I forgot a small step. With data-heavy questions, I began reading the task before getting lost in the table. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Poppy Mercer

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. One bad mock no longer made me want to drop the whole plan. Experiencing the exam format beforehand made test day much less stressful. Practicing in the real exam format made test day feel much less unfamiliar. I started noticing the reason for a mistake much faster. I'm genuinely thankful to my tutor for being patient.

    Theo Roussel

  • IGCSE / GCSE

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. The mocks showed where my time was actually being lost. I became much more comfortable asking questions in class. The preparation felt calmer than I expected.

    Georgia Connolly

  • Digital SAT

    Our child had a clear goal but no steady study routine. Thank you sincerely to everyone involved.

    Emre Gurbuz

  • AP Exams

    Breaking AP Calculus BC into smaller pieces worked much better for me. I started noticing the reason for a mistake much faster.

    Josefina Sarmiento

  • YÖS / TR-YÖS

    I was close to my target, but my results changed a lot from one test to the next. I started tracking the type of mistake, not just the number of questions I completed. Lesson times could fit around school, university or work. A quick check after each answer helped me catch small mistakes. My mock results gradually became more consistent. I was really happy with the lessons.

    Sloane Whitman

  • GRE General

    I had been studying alone, but my results stopped improving after a point. I stopped doing a huge amount one week and nothing the next. We were realistic about what could be improved in the time available. 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.

    Karina Mazur

  • ACT

    The feedback I received on ACT Reading was clear and practical. I left the exam feeling that I had done what I could.

    Yunfei Peng

  • LSAT

    After my first attempt, I wanted a calmer and more focused plan for the retake. 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. It was an intense period, but it was worth it.

    Aylin Cakir

  • IGCSE / GCSE

    Over time, IGCSE Economics became one of the most organized parts of my IGCSE / GCSE preparation. I stopped doing a huge amount one week and nothing the next. My case responses became more organized and direct. Knowing what to study reduced a lot of the stress. I found a better balance between regular school and exam preparation. I'm genuinely thankful to my tutor for being patient.

    Facundo Canales

  • SSAT

    I was doing questions for Quantitative on my own but never had a steady routine. I'm glad I worked with my tutor through this process.

    Peng Tang

  • A-Level

    Over time, A-Level Biology became one of the most organized parts of my A-Level preparation. One bad mock no longer made me want to drop the whole plan. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. My confidence improved along with the results. I wasn't trying to learn new topics at the very last minute. It was an intense period, but it was worth it.

    Zheng Feng

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500+ students supported|4.9/5 rating

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