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

  • IMAT

    Our child had a clear goal but no steady study routine. We would recommend the program to students and families in a similar situation.

    Hyejin Ji

  • IMAT

    Everyone recommended different resources and I kept switching between them. Knowing what to study reduced a lot of the stress.

    Thijs Kramer

  • IMAT

    I was doing questions for Mathematics on my own but never had a steady routine. The group never had more than six students, so it was easy to stay involved. My mock results gradually became more consistent. It was an intense period, but it was worth it.

    Elena Antunes

  • IMAT

    Breaking Mathematics into smaller pieces worked much better for me. I started noticing the reason for a mistake much faster.

    Enzo Garcia

  • IMAT

    Breaking Mathematics into smaller pieces worked much better for me. My tutor usually asked me to explain my thinking before stepping in. Learning when to leave a hard question made a real difference to my timing. I found a better balance between regular school and exam preparation. My preparation became much more regular and easier to track. Thanks to TestPrep for helping me stay on track.

    Marina Almeida

  • IMAT

    The feedback I received on Mathematics was clear and practical. My tutor usually asked me to explain my thinking before stepping in. Seeing several versions of the same topic made unfamiliar questions less stressful. Knowing what to study reduced a lot of the stress. I started noticing the reason for a mistake much faster. Thanks to TestPrep for helping me stay on track.

    Mitali Verma

  • IMAT

    I was taking Biology at school, but getting used to the exam questions took time. Breaking Biology into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. Separating calculation errors from content gaps made revision more useful. After a while, the questions started to feel much more familiar. I'm glad I worked with my tutor through this process.

    Miku Murakami

  • IMAT

    Past-paper questions showed me how different topics could appear together. A big thank you to my tutor for all the support :)

    Anqi Song

  • IMAT

    Our son's school schedule was already very busy. Joining lessons willingly was one of the clearest signs for us. Online lessons made it possible to continue without losing time on travel. Mock analysis allowed us to follow progress more clearly. Preparation looked calmer and more organized closer to the exam. We quickly felt that the tutor was a good match.

    Kanya Saelim

  • IMAT

    After my first attempt, I wanted the second round of preparation to feel more organized. Over time, General Knowledge became one of the most organized parts of my IMAT preparation. 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. My mock results gradually became more consistent. It was an intense period, but it was worth it.

    Imogen Farley

  • IMAT

    We wanted our child to keep up with the school pace in Logical Reasoning. Individual lesson time was used around our child's actual needs. We were pleased with the support we received.

    Alan Quiroga

  • IMAT

    At the beginning, we knew very little about the IMAT system as parents. Flexible scheduling helped during a demanding school year. Regular work on similar question types reduced repeated mistakes. Online lessons made it possible to continue without losing time on travel. The plan was adjusted when school exams became busy. We would recommend the program to students and families in a similar situation.

    Jimena Peralta

  • IMAT

    What annoyed me most was losing easy points because I rushed. I started tracking the type of mistake, not just the number of questions I completed. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I was really happy with the lessons.

    Daeun Pyo

  • IMAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Full-length mocks helped me get used to the real exam pace. I became much more careful with graphs, experiments and data-based questions. We could make the workload lighter during busy weeks at school or university. It was an intense period, but it was worth it.

    Haruka Yamashita

  • IMAT

    When I started preparing for IMAT, I wasn't sure what order to study things in. I left the exam feeling that I had done what I could.

    Keira Garland

  • IMAT

    Everyone recommended different resources and I kept switching between them. I stopped doing a huge amount one week and nothing the next. Having the lesson move at my pace made the process feel much easier. Once I understood the reasons behind the facts, the questions felt less random. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Carter Pritchard

  • IMAT

    Our son's school schedule was already very busy. The overall experience was positive from beginning to end.

    Viola Vitale

  • IMAT

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

    Hannah Kirkwood

  • 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

  • IMAT

    I finally understood what was going wrong in Chemistry. There was no overnight miracle, but the progress was easy to see.

    Louis Picard

  • IMAT

    After my first attempt, I wanted the second round of preparation to feel more organized. A big thank you to my tutor for all the support :)

    Sienna Rawson

  • IMAT

    What annoyed me most was losing easy points because I rushed. Questions from other students often helped me as well. I learned to make a short plan before starting a long response. The plan changed with my mock and homework results, so the work never felt random. Even in a group lesson, the tutor knew where each of us stood. It was an intense period, but it was worth it.

    Yerin Ahn

  • IMAT

    Everyone recommended different resources and I kept switching between them. Even in a group lesson, the tutor knew where each of us stood. I started noticing the reason for a mistake much faster. Thanks to everyone who supported me.

    Mateo Sarmiento

  • IMAT

    After my first attempt, I wanted the second round of preparation to feel more organized. I started tracking the type of mistake, not just the number of questions I completed. My tutor could see my reasoning and usually found the source of an error quickly. Separating calculation errors from content gaps made revision more useful. I left the exam feeling that I had done what I could. Thank you to my tutor and the TestPrep team.

    Wei Zhou

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500+ students supported|4.9/5 rating

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