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

  • AP Exams

    What annoyed me most was losing easy points because I rushed. We could make the workload lighter during busy weeks at school or university. Having the lesson move at my pace made the process feel much easier. I became much more careful with graphs, experiments and data-based questions. My mock results gradually became more consistent. It was an intense period, but it was worth it.

    Santiago Cuellar

  • IGCSE / GCSE

    We weren't sure whether online lessons would be effective. We were pleased with the support we received.

    Mateo Cuevas

  • IGCSE / GCSE

    Our daughter needed regular support with IGCSE Economics. Being able to fit lessons around school made the process easier. It was good to see confidence returning over time. A good connection with the tutor developed quite quickly. We were pleased with the support we received.

    Selin Turan

  • PTE Academic

    I came back to Computer-Based Practice after a long break and wasn't sure where to begin. Thank you to the tutor who stayed supportive until the end.

    Simone Gatti

  • GRE General

    I came back to Data Analysis after a long break and wasn't sure where to begin. The plan changed with my mock and homework results, so the work never felt random. A quick check after each answer helped me catch small mistakes. The preparation felt calmer than I expected.

    Harrison McLean

  • IGCSE / GCSE

    After the first attempt, we looked for a calmer plan for the retake. Thank you sincerely to everyone involved.

    Mafalda Guerreiro

  • AP Exams

    I was taking AP Physics 1 at school, but getting used to the exam questions took time. My preparation became much more regular and easier to track.

    Brodie Norris

  • PTE Academic

    I had collected too many resources without knowing when to use any of them. The preparation felt calmer than I expected.

    Taemin Kang

  • GMAT Focus

    My mock scores were inconsistent, so it was hard to judge my actual level. I finally understood what was going wrong in Data Insights. We could make the workload lighter during busy weeks at school or university. Learning when to leave a hard question made a real difference to my timing. I left the exam feeling that I had done what I could. A big thank you to my tutor for all the support :)

    Hyejin Pyo

  • AP Exams

    Our son's school schedule was already very busy. We were able to follow the mock results regularly. Mistakes became something to work on rather than something to feel bad about. The tutor's close attention to weaker areas gave us confidence. The tutor supported regular study, not only the lesson content. We quickly felt that the tutor was a good match.

    Imogen Huxley

  • IGCSE / GCSE

    Our daughter needed regular support with IGCSE Accounting. The overall experience was positive from beginning to end.

    Mitchell Moroney

  • IGCSE / GCSE

    Our child wasn't sure how to organize the preparation for IGCSE / GCSE. Seeing the change in our child made us very happy.

    Tobias Busch

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. Thanks to TestPrep for helping me stay on track.

    Caleb Brennan

  • IGCSE / GCSE

    At the beginning, we knew very little about the IGCSE / GCSE system as parents. With no more than six students, the tutor had time for everyone. The overall experience was positive from beginning to end.

    Maddison Draper

  • Digital SAT

    I was close to my target, but my results changed a lot from one test to the next. There was no overnight miracle, but the progress was easy to see.

    Darcy Keating

  • GMAT Focus

    We didn't spend extra time on things I already knew. The feedback I received on Data Sufficiency was clear and practical. I wasn't trying to learn new topics at the very last minute. Thanks to everyone who supported me.

    Damien Girard

  • GMAT Focus

    Lesson times could fit around school, university or work. Over time, Quantitative Reasoning became one of the most organized parts of my GMAT Focus preparation. I went into the exam much calmer than I would have before. The preparation felt calmer than I expected.

    Ivana Vukovic

  • PTE Academic

    I was taking Write from Dictation at school, but getting used to the exam questions took time. Questions from other students often helped me as well. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. Near the exam, it was clear what to keep doing and what to stop. The group never had more than six students, so it was easy to stay involved. Thanks to everyone who supported me.

    Carla Navarro

  • A-Level

    Breaking A-Level Business into smaller pieces worked much better for me. Separating strategy mistakes from content gaps made progress much quicker. Knowing what to study reduced a lot of the stress.

    Seo Do

  • PTE Academic

    Breaking Computer-Based Practice into smaller pieces worked much better for me. Near the exam, it was clear what to keep doing and what to stop. Before coding, I began thinking about which structure actually fit the problem. I became much more comfortable asking questions in class. I left the exam feeling that I had done what I could. I'm genuinely thankful to my tutor for being patient.

    Adrien Lacroix

  • IB Diploma

    Everyone recommended different resources and I kept switching between them. Over time, IB Mathematics AI became one of the most organized parts of my IB Diploma preparation. The plan changed with my mock and homework results, so the work never felt random. We focused more on understanding what the problem asked than memorizing formulas. After a while, the questions started to feel much more familiar. Thank you to the tutor who stayed supportive until the end.

    Kaori Ono

  • A-Level

    I was taking A-Level English Literature at school, but getting used to the exam questions took time. My tutor could see my reasoning and usually found the source of an error quickly. After a while, the questions started to feel much more familiar. Thanks to TestPrep for helping me stay on track.

    Dylan Sutton

  • Digital SAT

    Everyone recommended different resources and I kept switching between them. Lesson times could fit around school, university or work. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Clement Girard

  • GMAT Focus

    Over time, Critical Reasoning became one of the most organized parts of my GMAT Focus preparation. Balancing Quant and Verbal in the same week worked better than studying them in blocks. My confidence improved along with the results.

    Carter Callahan

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.