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

  • Digital SAT

    After my first attempt, I wanted the second round of preparation to feel more organized. After each test, we looked beyond the score and reviewed the type of each mistake. Seeing several versions of the same topic made unfamiliar questions less stressful. I never felt awkward asking the same thing again. The mocks showed where my time was actually being lost. I was really happy with the lessons.

    Sydney Patterson

  • SSAT

    The SSAT format felt unnecessarily confusing at first. A big thank you to my tutor for all the support :)

    Camille Tessier

  • AP Exams

    What annoyed me most was losing easy points because I rushed. Even in a group lesson, the tutor knew where each of us stood. I found a better balance between regular school and exam preparation. A big thank you to my tutor for all the support :)

    Chase Fletcher

  • AP Exams

    Even in a group lesson, the tutor knew where each of us stood. I finally understood what was going wrong in AP Environmental Science. Knowing what to study reduced a lot of the stress. It was an intense period, but it was worth it.

    Teresa Brito

  • AP Exams

    I finally understood what was going wrong in AP Statistics. I started seeing shorter solutions that were easier to check under time pressure. My preparation became much more regular and easier to track.

    Lars Schafer

  • Digital SAT

    I was doing questions for Problem Solving & Data Analysis on my own but never had a steady routine. Thanks to TestPrep for helping me stay on track.

    Maxime Granger

  • AP Exams

    The feedback I received on AP Calculus BC was clear and practical. My mock results gradually became more consistent.

    Bo Huang

  • AP Exams

    I chose AP Physics C: Mechanics this year and wanted to build a solid base from the beginning. One bad mock no longer made me want to drop the whole plan. Once I understood the reasons behind the facts, the questions felt less random. Thank you to my tutor and the TestPrep team.

    Lena Mulder

  • AP Exams

    Our daughter needed regular support with AP World History. Communication with the team was straightforward and our questions were answered. A realistic plan for the final weeks reduced stress for the whole family. It was good to see confidence returning over time. Thank you sincerely to everyone involved.

    Maja Hendriks

  • AP Exams

    I was doing questions for AP Microeconomics on my own but never had a steady routine. Thanks to TestPrep for helping me stay on track.

    Nana Ogawa

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. I finally understood what was going wrong in Extended Essay (EE). The plan changed with my mock and homework results, so the work never felt random. Knowing the criteria from the start made the whole task less vague. I found a better balance between regular school and exam preparation. It was an intense period, but it was worth it.

    Mitchell Hawke

  • IGCSE / GCSE

    Breaking IGCSE Accounting into smaller pieces worked much better for me. We could make the workload lighter during busy weeks at school or university. My case responses became more organized and direct. After a while, the questions started to feel much more familiar. I left the exam feeling that I had done what I could. Thank you to the tutor who stayed supportive until the end.

    Hayden Murray

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. Near the exam, it was clear what to keep doing and what to stop. Lesson times could fit around school, university or work. I started seeing shorter solutions that were easier to check under time pressure. After a while, the questions started to feel much more familiar. It was an intense period, but it was worth it.

    Ines Guerreiro

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. We could make the workload lighter during busy weeks at school or university. I started seeing shorter solutions that were easier to check under time pressure. The preparation felt calmer than I expected.

    Marine Gerard

  • IB Diploma

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

    Andrea Portillo

  • AP Exams

    At the beginning, we knew very little about the AP Exams system as parents. We were able to follow the mock results regularly. Joining lessons willingly was one of the clearest signs for us. Returning to actual gaps instead of restarting everything saved time. The lessons started being followed without constant reminders from us. Seeing the change in our child made us very happy.

    Bayu Kurniawan

  • LNAT

    The LNAT format felt unnecessarily confusing at first. We didn't spend extra time on things I already knew. My mock results gradually became more consistent. It was an intense period, but it was worth it.

    Brooke Driscoll

  • TOEFL iBT

    It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. Thanks to TestPrep for helping me stay on track.

    Cooper Harcourt

  • IGCSE / GCSE

    I was doing questions for IGCSE Physics on my own but never had a steady routine. After enough examples of the same question type, the repeated mistakes decreased. My confidence improved along with the results. It was an intense period, but it was worth it.

    Tahlia Hume

  • IMAT

    Keeping up with IMAT while school was busy was harder than I expected. It was an intense period, but it was worth it.

    Nikhil Kohli

  • AP Exams

    We focused more on understanding what the problem asked than memorizing formulas. It was an intense period, but it was worth it.

    Catarina Campos

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. The plan changed with my mock and homework results, so the work never felt random. Breaking the draft into smaller parts made it feel much more doable. Thank you to the tutor who stayed supportive until the end.

    Camden Carver

  • ACT

    I was taking Time Management at school, but getting used to the exam questions took time. Even in a group lesson, the tutor knew where each of us stood. Practicing in the real exam format made test day feel much less unfamiliar. I stopped doing a huge amount one week and nothing the next. The group never had more than six students, so it was easy to stay involved. The preparation felt calmer than I expected.

    Paige Dean

  • IGCSE / GCSE

    Our son's school schedule was already very busy. We were able to follow the mock results regularly. Joining lessons willingly was one of the clearest signs for us. Full-length tests showed how time was being used across the exam. A good connection with the tutor developed quite quickly. We would recommend the program to students and families in a similar situation.

    Callum Baird

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500+ students supported|4.9/5 rating

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