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

  • AP Exams

    I chose AP Calculus BC this year and wanted to build a solid base from the beginning. I started noticing the reason for a mistake much faster.

    Valentina Beltran

  • Digital SAT

    After my first attempt, I wanted the second round of preparation to feel more organized. We could make the workload lighter during busy weeks at school or university. We were realistic about what could be improved in the time available. We focused more on understanding what the problem asked than memorizing formulas. I started noticing the reason for a mistake much faster. Thanks to TestPrep for helping me stay on track.

    Mauricio Urrutia

  • PTE Academic

    I learned not to lose the rest of a listening task because I missed one word. A big thank you to my tutor for all the support :)

    Camden Nichols

  • IB Diploma

    I was close to my target, but my results changed a lot from one test to the next. One bad mock no longer made me want to drop the whole plan. Focusing on past papers and mock review worked well near the exam. Separating strategy mistakes from content gaps made progress much quicker. I started noticing the reason for a mistake much faster. Thanks to everyone who supported me.

    Cody Wakefield

  • IB Diploma

    Everyone recommended different resources and I kept switching between them. Thanks to everyone who supported me.

    Brooke Franklin

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. I was really happy with the lessons.

    Blake Nichols

  • UCAT

    The lessons started being followed without constant reminders from us. It was good to see confidence returning over time. We quickly felt that the tutor was a good match.

    Victor Santana

  • GRE General

    After my first attempt, I wanted a calmer and more focused plan for the retake. Near the exam, it was clear what to keep doing and what to stop. Full-length mocks helped me get used to the real exam pace. I started seeing shorter solutions that were easier to check under time pressure. My confidence improved along with the results. Thanks to everyone who supported me.

    Hugo Lambert

  • GRE General

    In Text Completion, timing was costing me more points than the content itself. The plan changed with my mock and homework results, so the work never felt random. My tutor could see my reasoning and usually found the source of an error quickly. My written answers became shorter, clearer and easier to follow. I found a better balance between regular school and exam preparation. Thanks to everyone who supported me.

    Lan Do

  • PTE Academic

    Breaking Speaking & Writing into smaller pieces worked much better for me. I started tracking the type of mistake, not just the number of questions I completed. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. After a while, the questions started to feel much more familiar. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Xinyi Pan

  • IB Diploma

    When I started preparing for IB Diploma, I wasn't sure what order to study things in. My tutor could see my reasoning and usually found the source of an error quickly. I became much more comfortable asking questions in class. I was really happy with the lessons.

    Amandine Perrin

  • IB Diploma

    The feedback I received on IB World History was clear and practical. Source questions became easier once I noticed how small details affected the mark. I left the exam feeling that I had done what I could.

    Bonnie Harcourt

  • IGCSE / GCSE

    Online lessons made it possible to continue without losing time on travel. Joining lessons willingly was one of the clearest signs for us. The overall experience was positive from beginning to end.

    Huong Dang

  • Digital SAT

    I chose Reading & Writing this year and wanted to build a solid base from the beginning. Near the exam, it was clear what to keep doing and what to stop. My tutor could see my reasoning and usually found the source of an error quickly. I stopped choosing answers by feel and started looking for evidence in the passage. I became much more comfortable asking questions in class. The preparation felt calmer than I expected.

    Tobias VanDijk

  • ACT

    I stopped choosing answers by feel and started looking for evidence in the passage. I'm glad I worked with my tutor through this process.

    Lars Bos

  • ACT

    The ACT format felt unnecessarily confusing at first. I became much more comfortable asking questions in class.

    Alper Ozturk

  • IGCSE / GCSE

    Over time, IGCSE Psychology became one of the most organized parts of my IGCSE / GCSE preparation. I wasn't trying to learn new topics at the very last minute.

    Marco Rinaldi

  • IMAT

    The IMAT format felt unnecessarily confusing at first. I became much more comfortable asking questions in class.

    Sydney Langston

  • IB Diploma

    Lesson times could fit around school, university or work. The feedback I received on IB English B was clear and practical. My confidence improved along with the results. The preparation felt calmer than I expected.

    Eunji Seo

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. My tutor usually asked me to explain my thinking before stepping in. We didn't spend extra time on things I already knew. Balancing Quant and Verbal in the same week worked better than studying them in blocks. I left the exam feeling that I had done what I could. It was an intense period, but it was worth it.

    Arif Siregar

  • Digital SAT

    The Digital SAT format felt unnecessarily confusing at first. Near the exam, it was clear what to keep doing and what to stop. The class felt relaxed enough to ask questions without overthinking it. I started seeing shorter solutions that were easier to check under time pressure. I found a better balance between regular school and exam preparation. I'm genuinely thankful to my tutor for being patient.

    Emilia Meijer

  • IELTS Academic

    In Speaking, timing was costing me more points than the content itself. Choosing questions by topic made my practice time much more useful. I found a better balance between regular school and exam preparation. I'm glad I worked with my tutor through this process.

    Vikram Suri

  • IB Diploma

    Keeping up with IB Diploma while school was busy was harder than I expected. After enough examples of the same question type, the repeated mistakes decreased. My confidence improved along with the results. I was really happy with the lessons.

    Thomas Redmond

  • A-Level

    Over time, A-Level Economics became one of the most organized parts of my A-Level preparation. Balancing Quant and Verbal in the same week worked better than studying them in blocks. My mock results gradually became more consistent.

    Seungwoo Heo

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500+ students supported|4.9/5 rating

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