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

    What annoyed me most was losing easy points because I rushed. Going back to the lesson recordings helped when I forgot a small step. Discussing why the other choices were wrong helped more than I expected. A big thank you to my tutor for all the support :)

    Mikkel Lund

  • AP Exams

    Breaking AP US Government into smaller pieces worked much better for me. Using the mark scheme to review my own answer was surprisingly helpful. My confidence improved along with the results.

    Logan Prescott

  • IB Diploma

    I chose IB Economics this year and wanted to build a solid base from the beginning. We balanced current school topics with past-paper practice. My confidence improved along with the results. Thank you to my tutor and the TestPrep team.

    Eylul Kartal

  • YÖS / TR-YÖS

    I was doing questions for Mathematics on my own but never had a steady routine. Even in a group lesson, the tutor knew where each of us stood. Learning when to leave a hard question made a real difference to my timing. My tutor usually asked me to explain my thinking before stepping in. Thank you to my tutor and the TestPrep team.

    Johan Ilic

  • Digital SAT

    I was doing questions for Problem Solving & Data Analysis on my own but never had a steady routine. My tutor usually asked me to explain my thinking before stepping in. Seeing several versions of the same topic made unfamiliar questions less stressful. Thanks to everyone who supported me.

    Jaehyun Cha

  • IB Diploma

    I was doing questions for IB English B on my own but never had a steady routine. My tutor usually asked me to explain my thinking before stepping in. I learned not to spend the same amount of time on every line of a long text. Thanks to everyone who supported me.

    Remi Perrin

  • IB Diploma

    I was close to my target, but my results changed a lot from one test to the next. We didn't spend extra time on things I already knew. Seeing several versions of the same topic made unfamiliar questions less stressful. Going back to the lesson recordings helped when I forgot a small step. Thanks to everyone who supported me.

    Rocio Prieto

  • SSAT

    As the exam got closer, I wasn't sure what I should actually review. After each test, we looked beyond the score and reviewed the type of each mistake. Learning when to leave a hard question made a real difference to my timing. Near the exam, it was clear what to keep doing and what to stop. Experiencing the exam format beforehand made test day much less stressful. I was really happy with the lessons.

    Luciana Valdez

  • IB Diploma

    Online lessons made it possible to continue without losing time on travel. We would recommend the program to students and families in a similar situation.

    Raul Loureiro

  • Digital SAT

    We wanted our child to keep up with the school pace in Algebra. Communication with the team was straightforward and our questions were answered. We quickly felt that the tutor was a good match.

    Angus Gilmour

  • GRE General

    The feedback I received on Verbal Reasoning was clear and practical. A lot of my mistakes came from rushing through the wording of the question. I found a better balance between regular school and exam preparation.

    Kohei Watanabe

  • IB Diploma

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. My tutor made it easy to ask questions from the first lesson. We focused more on understanding what the problem asked than memorizing formulas. Thank you to my tutor and the TestPrep team.

    Sofia Bernardi

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. After a while, the questions started to feel much more familiar.

    Riku Ota

  • SSAT

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

    Lucia Fuentes

  • A-Level

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. 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 stopped listing facts in essays and started building an actual argument. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Chiara Costa

  • IB Diploma

    Even in a group lesson, the tutor knew where each of us stood. Breaking IB World History into smaller pieces worked much better for me. My preparation became much more regular and easier to track. It was an intense period, but it was worth it.

    Oscar Kingston

  • YÖS / TR-YÖS

    The feedback I received on Geometry was clear and practical. Seeing several versions of the same topic made unfamiliar questions less stressful. I started noticing the reason for a mistake much faster.

    Yuki Sato

  • ACT

    I can now decide much faster when to move on from a question. Thank you to the tutor who stayed supportive until the end.

    Piper Vaughn

  • Digital SAT

    When I started preparing for Digital SAT, I wasn't sure what order to study things in. Going back to the lesson recordings helped when I forgot a small step. The mocks showed where my time was actually being lost. Sorting mistakes after each mock changed the way I studied. I started noticing the reason for a mistake much faster. I'm glad I worked with my tutor through this process.

    Kendall Brennan

  • Digital SAT

    Everyone recommended different resources and I kept switching between them. Questions from other students often helped me as well. I became much more comfortable asking questions in class. Thanks to TestPrep for helping me stay on track.

    Manon Faure

  • IB Diploma

    The plan was adjusted when school exams became busy. Seeing the change in our child made us very happy.

    Diya Mukherjee

  • IB Diploma

    Anxiety became more visible as the exam got closer. Individual lesson time was used around our child's actual needs. We would recommend the program to students and families in a similar situation.

    Mauricio Alarcon

  • ACT

    The ACT format felt unnecessarily confusing at first. There was no overnight miracle, but the progress was easy to see.

    Brooke Jarvis

  • ACT

    At the beginning, we knew very little about the ACT system as parents. Flexible scheduling helped during a demanding school year. Individual lesson time was used around our child's actual needs. The plan was adjusted when school exams became busy. A good connection with the tutor developed quite quickly. The overall experience was positive from beginning to end.

    Lara Murray

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500+ students supported|4.9/5 rating

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