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

  • IGCSE / GCSE

    The feedback I received on IGCSE Combined Science was clear and practical. Separating calculation errors from content gaps made revision more useful. My preparation became much more regular and easier to track.

    Carmen Cabrera

  • IGCSE / GCSE

    The IGCSE / GCSE format felt unnecessarily confusing at first. The class felt relaxed enough to ask questions without overthinking it. I wasn't trying to learn new topics at the very last minute. It was an intense period, but it was worth it.

    Koray Keskin

  • IGCSE / GCSE

    We wanted our child to keep up with the school pace in IGCSE Biology. The tutor supported regular study, not only the lesson content. We thank the tutor and the TestPrep team.

    Bruna Moraes

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. After a while, the questions started to feel much more familiar.

    Asli Turan

  • IGCSE / GCSE

    Our son's school schedule was already very busy. Individual lesson time was used around our child's actual needs. We quickly felt that the tutor was a good match.

    Riccardo Grimaldi

  • IGCSE / GCSE

    We weren't sure whether online lessons would be effective. Online lessons made it possible to continue without losing time on travel. Individual lesson time was used around our child's actual needs. We thank the tutor and the TestPrep team.

    Yuxin Liu

  • IGCSE / GCSE

    Full-length mocks helped me get used to the real exam pace. I finally understood what was going wrong in IGCSE Chemistry. I left the exam feeling that I had done what I could. I was really happy with the lessons.

    Anouk Visser

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. The plan changed with my mock and homework results, so the work never felt random. I used the question bank regularly to return to weaker topics. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I left the exam feeling that I had done what I could. I was really happy with the lessons.

    Owen Dalton

  • IGCSE / GCSE

    We wanted our child to keep up with the school pace in IGCSE Psychology. We were able to follow the mock results regularly. The tutor's close attention to weaker areas gave us confidence. A good connection with the tutor developed quite quickly. Online lessons made it possible to continue without losing time on travel. Thank you sincerely to everyone involved.

    Tove Peric

  • IGCSE / GCSE

    Over time, IGCSE Turkish became one of the most organized parts of my IGCSE / GCSE preparation. I can now decide much faster when to move on from a question. My mock results gradually became more consistent.

    Finley Caldwell

  • IGCSE / GCSE

    We didn't spend extra time on things I already knew. I finally understood what was going wrong in IGCSE Computer Science. My mock results gradually became more consistent. I'm glad I worked with my tutor through this process.

    Valentin Aubert

  • IGCSE / GCSE

    We weren't sure whether online lessons would be effective. Being able to fit lessons around school made the process easier. We were happy with both the teaching and the communication.

    Federico Bernardi

  • IGCSE / GCSE

    As the exam got closer, I wasn't sure what I should actually review. Thank you to my tutor and the TestPrep team.

    Marco Basile

  • IGCSE / GCSE

    Online lessons made it possible to continue without losing time on travel. The overall experience was positive from beginning to end.

    Avery Monroe

  • IGCSE / GCSE

    We weren't sure whether online lessons would be effective. Thank you sincerely to everyone involved.

    Viviana Acosta

  • 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. After enough examples of the same question type, the repeated mistakes decreased. I became much more careful with graphs, experiments and data-based questions. My confidence improved along with the results. The preparation felt calmer than I expected.

    Isha Trivedi

  • IGCSE / GCSE

    The feedback I received on IGCSE Physics was clear and practical. Going back to the lesson recordings helped when I forgot a small step. Separating calculation errors from content gaps made revision more useful. My mock results gradually became more consistent. I left the exam feeling that I had done what I could. A big thank you to my tutor for all the support :)

    Onur Polat

  • IGCSE / GCSE

    Experiencing the exam format beforehand made test day much less stressful. The feedback I received on IGCSE Environmental Management was clear and practical. My mock results gradually became more consistent. I'm genuinely thankful to my tutor for being patient.

    Melis Gokce

  • IGCSE / GCSE

    Our child had a clear goal but no steady study routine. A good connection with the tutor developed quite quickly. We were pleased with the support we received.

    Callum Wylie

  • IGCSE / GCSE

    Keeping up with IGCSE / GCSE while school was busy was harder than I expected. My mock results gradually became more consistent.

    Romain Pascal

  • IGCSE / GCSE

    The feedback I received on IGCSE English as a Second Language was clear and practical. I found a better balance between regular school and exam preparation.

    Ozge Aksoy

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. I went into the exam much calmer than I would have before.

    Kaito Sato

  • IGCSE / GCSE

    I was taking IGCSE Art and Design at school, but getting used to the exam questions took time. I found a better balance between regular school and exam preparation.

    Liam Langley

  • 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

Ready to Be Our Next Success Story?

Take a free diagnostic test to see exactly where you stand. Our expert tutors will create a personalized plan to reach your target score.

  • No commitment required to get started
  • Personalized score analysis and study plan
  • Free comprehensive diagnostic test
500+ students supported|4.9/5 rating

Book a Free Consultation

Fill in your details and we will get back to you.

Free Consultation (Online Video Call)

Message us on WhatsApp or give us a call to discuss your goals and plan the right program. We usually reply within a few hours.