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

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Before coding, I began thinking about which structure actually fit the problem. The preparation felt calmer than I expected.

    Shota Shimizu

  • 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

  • TOEFL iBT

    I came back to Speaking after a long break and wasn't sure where to begin. Even in a group lesson, the tutor knew where each of us stood. I developed a clearer way to return to the text during reading questions. My tutor made it easy to ask questions from the first lesson. Questions from other students often helped me as well. Thank you to the tutor who stayed supportive until the end.

    Efe Tekin

  • LNAT

    Flexible scheduling helped during a demanding school year. We were happy with both the teaching and the communication.

    Phoebe Lambert

  • AP Exams

    I was taking AP Macroeconomics at school, but getting used to the exam questions took time. Questions from other students often helped me as well. I became much more comfortable asking questions in class. I'm glad I worked with my tutor through this process.

    Jelena Kral

  • A-Level

    I chose A-Level History this year and wanted to build a solid base from the beginning. We didn't spend extra time on things I already knew. There was no overnight miracle, but the progress was easy to see. Thank you to the tutor who stayed supportive until the end.

    Mason Whitman

  • IGCSE / GCSE

    I learned to separate the information needed for a decision from the extra detail. I was really happy with the lessons.

    Mason Warren

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. Over time, IGCSE Computer Science became one of the most organized parts of my IGCSE / GCSE preparation. I never felt awkward asking the same thing again. Predicting the output helped me catch small logic errors. My mock results gradually became more consistent. I'm genuinely thankful to my tutor for being patient.

    Tereza Prochazka

  • TOEFL iBT

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

    Alessia Bellini

  • IB Diploma

    We wanted our child to keep up with the school pace in IB Economics. Online lessons made it possible to continue without losing time on travel. The tutor's close attention to weaker areas gave us confidence. We were able to follow the mock results regularly. Flexible scheduling helped during a demanding school year. We would recommend the program to students and families in a similar situation.

    Miles Lockwood

  • A-Level

    I chose A-Level English Literature this year and wanted to build a solid base from the beginning. After a while, the questions started to feel much more familiar.

    Arnav Suri

  • AP Exams

    Everyone recommended different resources and I kept switching between them. Questions from other students often helped me as well. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Elin Bergman

  • IGCSE / GCSE

    I finally understood what was going wrong in IGCSE Economics. I wasn't trying to learn new topics at the very last minute.

    Ara Sung

  • Digital SAT

    I was doing questions for SAT Math on my own but never had a steady routine. The preparation felt calmer than I expected.

    Ashleigh Yates

  • IB Diploma

    What annoyed me most was losing easy points because I rushed. Working across different difficulty levels made new questions feel less surprising. The feedback helped me improve my own work without writing it for me. One bad mock no longer made me want to drop the whole plan. Choosing questions by topic made my practice time much more useful. Thanks to TestPrep for helping me stay on track.

    Lijuan Zeng

  • TOEFL iBT

    In Reading, timing was costing me more points than the content itself. Thank you to my tutor and the TestPrep team.

    Alejandra Mena

  • IB Diploma

    Over time, IB Global Politics became one of the most organized parts of my IB Diploma preparation. My preparation became much more regular and easier to track.

    Carmen Mota

  • IGCSE / GCSE

    The IGCSE / GCSE format felt unnecessarily confusing at first. Lesson times could fit around school, university or work. The lessons where I found the bug myself were the ones I remembered best. Near the exam, it was clear what to keep doing and what to stop. Having the lesson move at my pace made the process feel much easier. Thanks to TestPrep for helping me stay on track.

    Marek Svoboda

  • GMAT Focus

    I had collected too many resources without knowing when to use any of them. Having the lesson move at my pace made the process feel much easier. Seeing several versions of the same topic made unfamiliar questions less stressful. One bad mock no longer made me want to drop the whole plan. My tutor could see my reasoning and usually found the source of an error quickly. It was an intense period, but it was worth it.

    Giulia Coppola

  • GRE General

    Balancing GRE General preparation with university and work was harder than I expected. A clear plan for the final weeks made priorities much easier to see. I wasn't trying to learn new topics at the very last minute. I'm glad I worked with my tutor through this process.

    Matilda Gilmour

  • AP Exams

    My written answers became shorter, clearer and easier to follow. I was really happy with the lessons.

    Sneha Bhatt

  • YÖS / TR-YÖS

    Our son's school schedule was already very busy. Being able to fit lessons around school made the process easier. Flexible scheduling helped during a demanding school year. The plan was adjusted when school exams became busy. We would recommend the program to students and families in a similar situation.

    Elise Renard

  • A-Level

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. One bad mock no longer made me want to drop the whole plan. Balancing Quant and Verbal in the same week worked better than studying them in blocks. Thank you to my tutor and the TestPrep team.

    Caleb Langston

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. I finally understood what was going wrong in A-Level Art and Design. By the end of each lesson, I knew what I was supposed to do during the week. I understood that the portfolio needed to show the process, not only the finished piece. I went into the exam much calmer than I would have before. The preparation felt calmer than I expected.

    Alvaro Fuentes

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500+ students supported|4.9/5 rating

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