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

    Lesson times could fit around school, university or work. Breaking Writing Sample into smaller pieces worked much better for me. After a while, the questions started to feel much more familiar. Thanks to TestPrep for helping me stay on track.

    Juliana Santos

  • LNAT

    Having the lesson move at my pace made the process feel much easier. Breaking Reading Comprehension into smaller pieces worked much better for me. After a while, the questions started to feel much more familiar. I was really happy with the lessons.

    Evie OConnell

  • YÖS / TR-YÖS

    We were realistic about what could be improved in the time available. Over time, IQ & Logic became one of the most organized parts of my YÖS / TR-YÖS preparation. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Santiago Villanueva

  • AP Exams

    Keeping school units and exam preparation in the same plan worked really well. Breaking AP Psychology into smaller pieces worked much better for me. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Vivek Sethi

  • GRE General

    I came back to Data Analysis after a long break and wasn't sure where to begin. I finally understood what was going wrong in Data Analysis. The plan changed with my mock and homework results, so the work never felt random. Learning when to leave a hard question made a real difference to my timing. I became much more comfortable asking questions in class. Thank you to my tutor and the TestPrep team.

    Jiaqi Peng

  • IB Diploma

    Everyone recommended different resources and I kept switching between them. The class felt relaxed enough to ask questions without overthinking it. Past-paper questions showed me how different topics could appear together. I stopped doing a huge amount one week and nothing the next. Questions from other students often helped me as well. I was really happy with the lessons.

    Liam Ingram

  • A-Level

    I finally understood what was going wrong in A-Level Mathematics. A quick check after each answer helped me catch small mistakes. My mock results gradually became more consistent.

    Mert Akbulut

  • A-Level

    Breaking A-Level Business into smaller pieces worked much better for me. The plan changed with my mock and homework results, so the work never felt random. 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. After a while, the questions started to feel much more familiar. I was really happy with the lessons.

    Hendrik Kuiper

  • IGCSE / GCSE

    Past-paper questions showed me how different topics could appear together. Thanks to TestPrep for helping me stay on track.

    Minho Do

  • PTE Academic

    The feedback I received on Write from Dictation was clear and practical. We reduced the memorized phrases so my answers sounded more natural. My confidence improved along with the results.

    Zoe Lawson

  • SSAT

    Breaking Quantitative into smaller pieces worked much better for me. I never felt awkward asking the same thing again. We focused more on understanding what the problem asked than memorizing formulas. I became much more comfortable asking questions in class. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Gonzalo Guerreiro

  • A-Level

    I was doing questions for A-Level History on my own but never had a steady routine. I never felt awkward asking the same thing again. I stopped listing facts in essays and started building an actual argument. Thank you to my tutor and the TestPrep team.

    Mariano Valdez

  • IELTS Academic

    In Writing Task 2, timing was costing me more points than the content itself. Breaking Writing Task 2 into smaller pieces worked much better for me. My tutor made it easy to ask questions from the first lesson. I developed a clearer way to return to the text during reading questions. I started noticing the reason for a mistake much faster. I was really happy with the lessons.

    Georgia McGrath

  • IELTS Academic

    I chose Writing Task 1 this year and wanted to build a solid base from the beginning. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Experiencing the exam format beforehand made test day much less stressful. We reduced the memorized phrases so my answers sounded more natural. After a while, the questions started to feel much more familiar. The preparation felt calmer than I expected.

    Tessa Brennan

  • YÖS / TR-YÖS

    Over time, IQ & Logic became one of the most organized parts of my YÖS / TR-YÖS preparation. My preparation became much more regular and easier to track.

    Leon Neumann

  • Digital SAT

    We noticed that the resources kept changing during independent study. Joining lessons willingly was one of the clearest signs for us.

    Firat Aksoy

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. A clear plan for the final weeks made priorities much easier to see. I started noticing the reason for a mistake much faster. A big thank you to my tutor for all the support :)

    Caitlin Underwood

  • IELTS Academic

    As the exam got closer, I wasn't sure what I should actually review. There was no overnight miracle, but the progress was easy to see.

    Sebastian Olvera

  • AP Exams

    I was doing questions for AP European History on my own but never had a steady routine. The feedback I received on AP European History was clear and practical. I never felt awkward asking the same thing again. Using the mark scheme to review my own answer was surprisingly helpful. I became much more comfortable asking questions in class. The preparation felt calmer than I expected.

    Bastien Meunier

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. 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. I became much more careful with graphs, experiments and data-based questions. I started noticing the reason for a mistake much faster. I'm genuinely thankful to my tutor for being patient.

    Merve Yucel

  • IELTS Academic

    Balancing IELTS Academic preparation with university and work was harder than I expected. Even in a group lesson, the tutor knew where each of us stood. We reduced the memorized phrases so my answers sounded more natural. Going back to the lesson recordings helped when I forgot a small step. The class felt relaxed enough to ask questions without overthinking it. A big thank you to my tutor for all the support :)

    Ivana Bergman

  • PTE Academic

    The feedback I received on Write from Dictation was clear and practical. I never felt awkward asking the same thing again. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Lucy Hayes

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. The tutor's close attention to weaker areas gave us confidence. We were happy with both the teaching and the communication.

    Freya Nolan

  • IB Diploma

    The feedback I received on IB Philosophy was clear and practical. Near the exam, it was clear what to keep doing and what to stop. Using the mark scheme to review my own answer was surprisingly helpful. I became much more comfortable asking questions in class. After a while, the questions started to feel much more familiar. Thanks to TestPrep for helping me stay on track.

    Oscar Sutherland

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500+ students supported|4.9/5 rating

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