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

  • ACT

    At the beginning, we knew very little about the ACT system as parents. Joining lessons willingly was one of the clearest signs for us. We were happy with both the teaching and the communication.

    Jordan Goodall

  • YÖS / TR-YÖS

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. The plan changed with my mock and homework results, so the work never felt random. Having the lesson move at my pace made the process feel much easier. A quick check after each answer helped me catch small mistakes. I wasn't trying to learn new topics at the very last minute. The preparation felt calmer than I expected.

    Meera Kulkarni

  • Digital SAT

    I was taking Advanced Math at school, but getting used to the exam questions took time. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Even in a group lesson, the tutor knew where each of us stood. A quick check after each answer helped me catch small mistakes. I found a better balance between regular school and exam preparation. It was an intense period, but it was worth it.

    Bianca Almeida

  • A-Level

    Online lessons made it possible to continue without losing time on travel. Seeing the change in our child made us very happy.

    Kendall Hawkins

  • A-Level

    Over time, A-Level Further Mathematics became one of the most organized parts of my A-Level preparation. Learning when to leave a hard question made a real difference to my timing. There was no overnight miracle, but the progress was easy to see.

    Manon Fontaine

  • SSAT

    Our child wasn't sure how to organize the preparation for SSAT. We would recommend the program to students and families in a similar situation.

    Mariel Soriano

  • Digital SAT

    I was doing questions for Reading & Writing on my own but never had a steady routine. Experiencing the exam format beforehand made test day much less stressful. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Leif Kowalski

  • GRE General

    Breaking Sentence Equivalence into smaller pieces worked much better for me. I wasn't trying to learn new topics at the very last minute.

    Lena Klein

  • IGCSE / GCSE

    We were able to follow the mock results regularly. We would recommend the program to students and families in a similar situation.

    Donghyun Pyo

  • AP Exams

    Breaking AP Physics 1 into smaller pieces worked much better for me. I became much more comfortable asking questions in class.

    Soren Lewandowski

  • A-Level

    The A-Level format felt unnecessarily confusing at first. After each test, we looked beyond the score and reviewed the type of each mistake. Predicting the output helped me catch small logic errors. One bad mock no longer made me want to drop the whole plan. Experiencing the exam format beforehand made test day much less stressful. Thanks to TestPrep for helping me stay on track.

    Lachlan Daley

  • IB Diploma

    I was doing questions for Theory of Knowledge (TOK) on my own but never had a steady routine. After each test, we looked beyond the score and reviewed the type of each mistake. I realized that choosing a topic, researching and revising each needed its own deadline. The plan changed with my mock and homework results, so the work never felt random. It was an intense period, but it was worth it.

    Kabir Sethi

  • IGCSE / GCSE

    I was doing questions for IGCSE English on my own but never had a steady routine. My tutor usually asked me to explain my thinking before stepping in. Lesson times could fit around school, university or work. A lot of my mistakes came from rushing through the wording of the question. I wasn't trying to learn new topics at the very last minute. Thanks to TestPrep for helping me stay on track.

    Trent Gilmour

  • LNAT

    Breaking Section B Essay into smaller pieces worked much better for me. I left the exam feeling that I had done what I could.

    Ilaria Caruso

  • TOEFL iBT

    After my first attempt, I wanted the second round of preparation to feel more organized. I finally understood what was going wrong in Integrated Tasks. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. 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. I was really happy with the lessons.

    Elise Pascal

  • AP Exams

    Everyone recommended different resources and I kept switching between them. Having the lesson move at my pace made the process feel much easier. I started tracing code line by line instead of only reading it quickly. We could make the workload lighter during busy weeks at school or university. My tutor could see my reasoning and usually found the source of an error quickly. It was an intense period, but it was worth it.

    Oliver Lawson

  • A-Level

    I was doing questions for A-Level Computer Science on my own but never had a steady routine. Breaking A-Level Computer Science into smaller pieces worked much better for me. I never felt awkward asking the same thing again. I started tracing code line by line instead of only reading it quickly. I wasn't trying to learn new topics at the very last minute. A big thank you to my tutor for all the support :)

    Pieter Wolf

  • A-Level

    I was close to my target, but my results changed a lot from one test to the next. The plan changed with my mock and homework results, so the work never felt random. I could work on exam technique without falling behind in class. Connecting examples back to the main point made my writing more consistent. My mock results gradually became more consistent. I'm genuinely thankful to my tutor for being patient.

    Wyatt McMillan

  • AP Exams

    The AP Exams format felt unnecessarily confusing at first. I used the question bank regularly to return to weaker topics. I found a better balance between regular school and exam preparation. I'm glad I worked with my tutor through this process.

    Gavin Livingston

  • GMAT Focus

    In Data Insights, timing was costing me more points than the content itself. Knowing what to study reduced a lot of the stress.

    Ashleigh Baird

  • AP Exams

    What annoyed me most was losing easy points because I rushed. Breaking AP Microeconomics into smaller pieces worked much better for me. We could make the workload lighter during busy weeks at school or university. Separating strategy mistakes from content gaps made progress much quicker. I wasn't trying to learn new topics at the very last minute. Thank you to the tutor who stayed supportive until the end.

    Thais Santos

  • GMAT Focus

    I knew my target, but I didn't have a realistic routine for GMAT Focus. My tutor usually asked me to explain my thinking before stepping in. My tutor could see my reasoning and usually found the source of an error quickly. I learned not to spend the same amount of time on every line of a long text. Knowing what to study reduced a lot of the stress. Thanks to TestPrep for helping me stay on track.

    Keira Haines

  • LSAT

    Over time, Reading Comprehension became one of the most organized parts of my LSAT preparation. I stopped choosing answers by feel and started looking for evidence in the passage. I found a better balance between regular school and exam preparation.

    Julian Braun

  • IB Diploma

    The class felt relaxed enough to ask questions without overthinking it. Breaking IB Business Management into smaller pieces worked much better for me. I wasn't trying to learn new topics at the very last minute. I'm glad I worked with my tutor through this process.

    Agustin Ibarra

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500+ students supported|4.9/5 rating

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