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

  • IB Diploma

    Lesson times could fit around school, university or work. Breaking IB Mathematics AI into smaller pieces worked much better for me. My preparation became much more regular and easier to track. Thanks to TestPrep for helping me stay on track.

    Rafaela Ramos

  • SSAT

    As the exam got closer, I wasn't sure what I should actually review. After a while, the questions started to feel much more familiar.

    Masato Ito

  • UCAT

    Our daughter needed regular support with Verbal Reasoning. A good connection with the tutor developed quite quickly.

    Reagan Ramsey

  • IMAT

    I chose Mathematics this year and wanted to build a solid base from the beginning. We didn't spend extra time on things I already knew. Learning when to leave a hard question made a real difference to my timing. One bad mock no longer made me want to drop the whole plan. I'm glad I worked with my tutor through this process.

    Jingyi Sun

  • SSAT

    I was doing questions for Upper Level on my own but never had a steady routine. Breaking Upper Level into smaller pieces worked much better for me. We could make the workload lighter during busy weeks at school or university. I worked on keeping a steady pace instead of rushing the easy questions. There was no overnight miracle, but the progress was easy to see. Thanks to everyone who supported me.

    Emiliano Zuniga

  • IB Diploma

    We wanted our child to keep up with the school pace in IB Physics. Individual lesson time was used around our child's actual needs. We quickly felt that the tutor was a good match.

    Declan Daley

  • IMAT

    Our son's school schedule was already very busy. Being able to fit lessons around school made the process easier. Thank you sincerely to everyone involved.

    Naina Das

  • GRE General

    I came back to Data Analysis after a long break and wasn't sure where to begin. Breaking Data Analysis into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. I started seeing shorter solutions that were easier to check under time pressure. I found a better balance between regular school and exam preparation. Thanks to everyone who supported me.

    Sooyoung Lee

  • IB Diploma

    We didn't spend extra time on things I already knew. The feedback I received on IB Computer Science was clear and practical. There was no overnight miracle, but the progress was easy to see. The preparation felt calmer than I expected.

    Isha Gowda

  • PTE Academic

    Balancing PTE Academic preparation with university and work was harder than I expected. I'm genuinely thankful to my tutor for being patient.

    Camila Galindo

  • IB Diploma

    Having the lesson move at my pace made the process feel much easier. The feedback I received on IB Global Politics was clear and practical. I became much more comfortable asking questions in class. I'm glad I worked with my tutor through this process.

    Tsubasa Nakajima

  • IMAT

    The feedback I received on Logical Reasoning was clear and practical. Once I understood the reasons behind the facts, the questions felt less random. I left the exam feeling that I had done what I could.

    Julian Saavedra

  • A-Level

    When I started preparing for A-Level, I wasn't sure what order to study things in. I finally understood what was going wrong in A-Level Chemistry. My tutor made it easy to ask questions from the first lesson. Separating calculation errors from content gaps made revision more useful. I went into the exam much calmer than I would have before. The preparation felt calmer than I expected.

    Yating He

  • IMAT

    Anxiety became more visible as the exam got closer. Flexible scheduling helped during a demanding school year. We would recommend the program to students and families in a similar situation.

    Marit Jansen

  • Digital SAT

    Over time, Algebra became one of the most organized parts of my Digital SAT preparation. My confidence improved along with the results.

    Ginevra Lombardi

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. My preparation became much more regular and easier to track.

    Kiara Draper

  • AP Exams

    Our child had a clear goal but no steady study routine. A good connection with the tutor developed quite quickly. Online lessons made it possible to continue without losing time on travel. Topic-based question practice made study time more focused. Communication with the team was straightforward and our questions were answered. We were pleased with the support we received.

    Yui Takeuchi

  • IB Diploma

    After the first attempt, we looked for a calmer plan for the retake. Online lessons made it possible to continue without losing time on travel. We were happy with both the teaching and the communication.

    Adrian Baptista

  • IGCSE / GCSE

    We weren't sure whether online lessons would be effective. The plan was adjusted when school exams became busy. Being able to fit lessons around school made the process easier. A good connection with the tutor developed quite quickly. The tutor supported regular study, not only the lesson content. The overall experience was positive from beginning to end.

    Skye Kingston

  • AP Exams

    We noticed that the resources kept changing during independent study. Full-length tests showed how time was being used across the exam. We were pleased with the support we received.

    Daiki Ikeda

  • YÖS / TR-YÖS

    As the exam got closer, I wasn't sure what I should actually review. The feedback I received on Geometry was clear and practical. Going back to the lesson recordings helped when I forgot a small step. A quick check after each answer helped me catch small mistakes. I became much more comfortable asking questions in class. Thanks to everyone who supported me.

    Renata Mena

  • AP Exams

    I finally understood what was going wrong in AP Research. Keeping the sources organized saved a lot of time later. I left the exam feeling that I had done what I could.

    Riku Yamada

  • A-Level

    When I started preparing for A-Level, I wasn't sure what order to study things in. We didn't spend extra time on things I already knew. I understood that the portfolio needed to show the process, not only the finished piece. 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'm genuinely thankful to my tutor for being patient.

    Tessa Palmer

  • AP Exams

    We weren't sure whether online lessons would be effective. The tutor's close attention to weaker areas gave us confidence. Preparation looked calmer and more organized closer to the exam. We were happy with both the teaching and the communication.

    Tommaso Testa

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500+ students supported|4.9/5 rating

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