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

  • IGCSE / GCSE

    It was good to see confidence returning over time. Preparation looked calmer and more organized closer to the exam. We thank the tutor and the TestPrep team.

    Bjorn Nikolic

  • IMAT

    The feedback I received on Biology was clear and practical. I started noticing the reason for a mistake much faster.

    Hannah Kirkwood

  • IGCSE / GCSE

    Breaking IGCSE Mathematics into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. A quick check after each answer helped me catch small mistakes. Knowing what to study reduced a lot of the stress. I left the exam feeling that I had done what I could. I'm genuinely thankful to my tutor for being patient.

    Ludovica Bellini

  • SSAT

    We wanted our child to keep up with the school pace in Upper Level. Thank you sincerely to everyone involved.

    Tahlia Newell

  • GMAT Focus

    I had collected too many resources without knowing when to use any of them. I'm glad I worked with my tutor through this process.

    Maeve Hayes

  • Digital SAT

    Everyone recommended different resources and I kept switching between them. I never felt awkward asking the same thing again. The group never had more than six students, so it was easy to stay involved. I started seeing shorter solutions that were easier to check under time pressure. I started noticing the reason for a mistake much faster. I'm glad I worked with my tutor through this process.

    Valentin Loyola

  • SSAT

    The SSAT format felt unnecessarily confusing at first. Near the exam, it was clear what to keep doing and what to stop. The mocks showed where my time was actually being lost. I learned not to spend the same amount of time on every line of a long text. My preparation became much more regular and easier to track. A big thank you to my tutor for all the support :)

    Emilia Farfan

  • Digital SAT

    I finally understood what was going wrong in Bluebook adaptif modüller. Practicing in the real exam format made test day feel much less unfamiliar. I started noticing the reason for a mistake much faster.

    Yuna Ogawa

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. Thanks to everyone who supported me.

    Sirin Meechai

  • AP Exams

    As the exam got closer, I wasn't sure what I should actually review. The preparation felt calmer than I expected.

    Simone Costa

  • AP Exams

    Over time, AP Chemistry became one of the most organized parts of my AP Exams preparation. My confidence improved along with the results.

    Moritz Smit

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. The feedback I received on AP European History was clear and practical. We could make the workload lighter during busy weeks at school or university. Using the mark scheme to review my own answer was surprisingly helpful. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Jian Han

  • GRE General

    I stopped choosing answers by feel and started looking for evidence in the passage. I'm genuinely thankful to my tutor for being patient.

    Joaquin Sarmiento

  • Digital SAT

    Having the lesson move at my pace made the process feel much easier. I finally understood what was going wrong in Bluebook adaptif modüller. Knowing what to study reduced a lot of the stress. Thank you to the tutor who stayed supportive until the end.

    Luciana Tamayo

  • IB Diploma

    Over time, IB Global Politics became one of the most organized parts of my IB Diploma preparation. The plan changed with my mock and homework results, so the work never felt random. I stopped listing facts in essays and started building an actual argument. I went into the exam much calmer than I would have before. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Maddison Quade

  • IGCSE / GCSE

    What annoyed me most was losing easy points because I rushed. Thanks to everyone who supported me.

    Erin Walsh

  • IB Diploma

    Over time, IB Computer Science became one of the most organized parts of my IB Diploma preparation. I started noticing the reason for a mistake much faster.

    Diya Nair

  • Digital SAT

    Our daughter needed regular support with Expression of Ideas. Preparation looked calmer and more organized closer to the exam. Joining lessons willingly was one of the clearest signs for us. Topic-based question practice made study time more focused. The tutor supported regular study, not only the lesson content. Seeing the change in our child made us very happy.

    Simran Roy

  • A-Level

    When I started preparing for A-Level, I wasn't sure what order to study things in. I found a better balance between regular school and exam preparation.

    Aditi Ahuja

  • AP Exams

    Everyone recommended different resources and I kept switching between them. 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. It was an intense period, but it was worth it.

    Alba Nieto

  • IB Diploma

    We noticed that the resources kept changing during independent study. Preparation looked calmer and more organized closer to the exam.

    Jisoo Ma

  • IMAT

    Our son's school schedule was already very busy. Regular mocks built familiarity with the real exam pace. The tutor supported regular study, not only the lesson content. The plan was adjusted when school exams became busy. We thank the tutor and the TestPrep team.

    George Walsh

  • IB Diploma

    I finally understood what was going wrong in IB Mathematics AA. I started seeing shorter solutions that were easier to check under time pressure. I left the exam feeling that I had done what I could.

    Bima Kurniawan

  • IB Diploma

    The feedback I received on IB ESS was clear and practical. I went into the exam much calmer than I would have before.

    Kunal Sethi

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500+ students supported|4.9/5 rating

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