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

  • LNAT

    Our child had a clear goal but no steady study routine. Seeing the change in our child made us very happy.

    Filippo Costa

  • ACT

    Our daughter needed regular support with ACT English. Seeing the change in our child made us very happy.

    Gael Rolland

  • IGCSE / GCSE

    My tutor could see my reasoning and usually found the source of an error quickly. Breaking IGCSE Biology into smaller pieces worked much better for me. I went into the exam much calmer than I would have before. Thank you to my tutor and the TestPrep team.

    Maxime Tessier

  • Digital SAT

    The mocks showed where my time was actually being lost. Breaking Standard English Conventions into smaller pieces worked much better for me. My mock results gradually became more consistent. Thank you to my tutor and the TestPrep team.

    Trent Lawson

  • TOEFL iBT

    Breaking Integrated Tasks into smaller pieces worked much better for me. My tutor made it easy to ask questions from the first lesson. We reduced the memorized phrases so my answers sounded more natural. My preparation became much more regular and easier to track. I became much more comfortable asking questions in class. Thank you to the tutor who stayed supportive until the end.

    Stefano Caruso

  • GRE General

    A quick check after each answer helped me catch small mistakes. I'm glad I worked with my tutor through this process.

    Rui Antunes

  • IELTS Academic

    At the beginning, we knew very little about the IELTS Academic system as parents. Individual lesson time was used around our child's actual needs. We were happy with both the teaching and the communication.

    Lauren Gardner

  • ACT

    Our son's school schedule was already very busy. A good connection with the tutor developed quite quickly. Preparation looked calmer and more organized closer to the exam. Mock analysis allowed us to follow progress more clearly. Online lessons made it possible to continue without losing time on travel. We thank the tutor and the TestPrep team.

    Baran Aydin

  • IB Diploma

    Once I understood the reasons behind the facts, the questions felt less random. Thank you to my tutor and the TestPrep team.

    Derya Bozkurt

  • AP Exams

    Everyone recommended different resources and I kept switching between them. The mocks showed where my time was actually being lost. Once I understood the reasons behind the facts, the questions felt less random. Going back to the lesson recordings helped when I forgot a small step. Full-length mocks helped me get used to the real exam pace. The preparation felt calmer than I expected.

    Thomas Caldwell

  • AP Exams

    I was taking AP Comparative Government at school, but getting used to the exam questions took time. Thank you to my tutor and the TestPrep team.

    Neha Hegde

  • IELTS Academic

    My mock scores were inconsistent, so it was hard to judge my actual level. One bad mock no longer made me want to drop the whole plan. I learned not to lose the rest of a listening task because I missed one word. Thank you to my tutor and the TestPrep team.

    Florencia Mendoza

  • LNAT

    The feedback I received on Section A MCQ was clear and practical. Discussing why the other choices were wrong helped more than I expected. After a while, the questions started to feel much more familiar.

    Mariana Urrutia

  • AP Exams

    We noticed that the resources kept changing during independent study. Past-paper work continued without falling behind in current school topics. Joining lessons willingly was one of the clearest signs for us. Online lessons made it possible to continue without losing time on travel. We were happy with both the teaching and the communication.

    Goncalo Pires

  • Digital SAT

    As the exam got closer, I wasn't sure what I should actually review. I'm glad I worked with my tutor through this process.

    Fiona Farley

  • A-Level

    I was doing questions for A-Level Mathematics on my own but never had a steady routine. Going back to the lesson recordings helped when I forgot a small step. A quick check after each answer helped me catch small mistakes. Thank you to my tutor and the TestPrep team.

    Itsuki Inoue

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Having the lesson move at my pace made the process feel much easier. Using the mark scheme to review my own answer was surprisingly helpful. I wasn't trying to learn new topics at the very last minute. I'm glad I worked with my tutor through this process.

    Oliver Lindley

  • PTE Academic

    The feedback I received on Listening was clear and practical. I found a better balance between regular school and exam preparation.

    Wesley Merritt

  • PTE Academic

    I was close to my target, but my results changed a lot from one test to the next. My tutor made it easy to ask questions from the first lesson. Lesson times could fit around school, university or work. I developed a clearer way to return to the text during reading questions. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Saskia Richter

  • YÖS / TR-YÖS

    I was taking Geometry at school, but getting used to the exam questions took time. I started noticing the reason for a mistake much faster.

    Anna Verhoeven

  • IGCSE / GCSE

    My tutor could see my reasoning and usually found the source of an error quickly. The feedback I received on IGCSE Biology was clear and practical. My mock results gradually became more consistent. It was an intense period, but it was worth it.

    Liam Harrison

  • TOEFL iBT

    I was taking Writing at school, but getting used to the exam questions took time. I left the exam feeling that I had done what I could.

    Arda Aydin

  • IMAT

    I finally understood what was going wrong in Physics. I went into the exam much calmer than I would have before.

    Rowan Tierney

  • AP Exams

    I was doing questions for AP Physics C: E&M on my own but never had a steady routine. One bad mock no longer made me want to drop the whole plan. I became much more careful with graphs, experiments and data-based questions. Thank you to my tutor and the TestPrep team.

    Anders Kaminski

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500+ students supported|4.9/5 rating

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