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

  • PTE Academic

    The PTE Academic format felt unnecessarily confusing at first. Having the lesson move at my pace made the process feel much easier. I learned not to lose the rest of a listening task because I missed one word. I started tracking the type of mistake, not just the number of questions I completed. Lesson times could fit around school, university or work. I was really happy with the lessons.

    Skye Ingram

  • IELTS Academic

    After my first attempt, I wanted a calmer and more focused plan for the retake. The preparation felt calmer than I expected.

    Romina Zuniga

  • A-Level

    Separating strategy mistakes from content gaps made progress much quicker. Thank you to my tutor and the TestPrep team.

    Haruka Abe

  • IGCSE / GCSE

    As the exam got closer, I wasn't sure what I should actually review. 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. Once I understood the reasons behind the facts, the questions felt less random. I became much more comfortable asking questions in class. I'm genuinely thankful to my tutor for being patient.

    Antoine Benoit

  • Digital SAT

    When I started preparing for Digital SAT, I wasn't sure what order to study things in. We didn't spend extra time on things I already knew. Sorting mistakes after each mock changed the way I studied. The plan changed with my mock and homework results, so the work never felt random. Lesson times could fit around school, university or work. Thanks to TestPrep for helping me stay on track.

    Claudia Loureiro

  • 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

  • IB Diploma

    When I started preparing for IB Diploma, I wasn't sure what order to study things in. The group never had more than six students, so it was easy to stay involved. A lot of my mistakes came from rushing through the wording of the question. I stopped doing a huge amount one week and nothing the next. The class felt relaxed enough to ask questions without overthinking it. Thanks to everyone who supported me.

    Jisoo Moon

  • 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

  • ACT

    When I started preparing for ACT, I wasn't sure what order to study things in. I became much more comfortable asking questions in class.

    Katarina Horvat

  • A-Level

    I became much more careful with graphs, experiments and data-based questions. It was an intense period, but it was worth it.

    Chiara Ferri

  • IELTS Academic

    The IELTS Academic format felt unnecessarily confusing at first. I finally understood what was going wrong in Academic Reading. By the end of each lesson, I knew what I was supposed to do during the week. I developed a clearer way to return to the text during reading questions. I wasn't trying to learn new topics at the very last minute. I was really happy with the lessons.

    Camila Saavedra

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. My tutor made it easy to ask questions from the first lesson. We balanced current school topics with past-paper practice. I learned to make a short plan before starting a long response. There was no overnight miracle, but the progress was easy to see. The preparation felt calmer than I expected.

    Lachlan Menzies

  • AP Exams

    The plan was adjusted when school exams became busy. We were happy with both the teaching and the communication.

    Ceren Kartal

  • Digital SAT

    After my first attempt, I wanted the second round of preparation to feel more organized. The class felt relaxed enough to ask questions without overthinking it. My written answers became shorter, clearer and easier to follow. The plan changed with my mock and homework results, so the work never felt random. Even in a group lesson, the tutor knew where each of us stood. I'm genuinely thankful to my tutor for being patient.

    Mei Ishii

  • TOEFL iBT

    When I started preparing for TOEFL iBT, I wasn't sure what order to study things in. My confidence improved along with the results.

    Rory Brennan

  • IB Diploma

    Our son's school schedule was already very busy. The tutor's close attention to weaker areas gave us confidence. The overall experience was positive from beginning to end.

    Lijuan Wu

  • IGCSE / GCSE

    I can now decide much faster when to move on from a question. I was really happy with the lessons.

    Juliana Alarcon

  • Digital SAT

    I was taking Standard English Conventions at school, but getting used to the exam questions took time. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Full-length mocks helped me get used to the real exam pace. Discussing why the other choices were wrong helped more than I expected. Knowing what to study reduced a lot of the stress. Thanks to everyone who supported me.

    Yuxin Feng

  • GMAT Focus

    My mock scores were inconsistent, so it was hard to judge my actual level. Experiencing the exam format beforehand made test day much less stressful. I wasn't trying to learn new topics at the very last minute. Thank you to the tutor who stayed supportive until the end.

    Carlo Navarro

  • IB Diploma

    Having the lesson move at my pace made the process feel much easier. I finally understood what was going wrong in IB Philosophy. My confidence improved along with the results. The preparation felt calmer than I expected.

    Bianca Martins

  • AP Exams

    Breaking AP Computer Science Principles into smaller pieces worked much better for me. I stopped doing a huge amount one week and nothing the next. My written code answers became much more organized. I wasn't trying to learn new topics at the very last minute. I went into the exam much calmer than I would have before. I was really happy with the lessons.

    Riccardo Valentini

  • PTE Academic

    I was taking Computer-Based Practice at school, but getting used to the exam questions took time. By the end of each lesson, I knew what I was supposed to do during the week. Before coding, I began thinking about which structure actually fit the problem. I was really happy with the lessons.

    Delaney McAllister

  • ACT

    The mocks showed where my time was actually being lost. The feedback I received on ACT Science was clear and practical. My preparation became much more regular and easier to track. Thank you to my tutor and the TestPrep team.

    Alyssa Castillo

  • AP Exams

    Breaking AP Biology into smaller pieces worked much better for me. I became much more careful with graphs, experiments and data-based questions. My confidence improved along with the results.

    Ishita Khanna

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500+ students supported|4.9/5 rating

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