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

  • A-Level

    Balancing Quant and Verbal in the same week worked better than studying them in blocks. Thank you to the tutor who stayed supportive until the end.

    Mitchell Whelan

  • A-Level

    Breaking A-Level Chemistry into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. I became much more careful with graphs, experiments and data-based questions. My preparation became much more regular and easier to track. My mock results gradually became more consistent. I'm genuinely thankful to my tutor for being patient.

    Quentin Aubert

  • IGCSE / GCSE

    Breaking IGCSE Business Studies into smaller pieces worked much better for me. I started tracking the type of mistake, not just the number of questions I completed. Separating strategy mistakes from content gaps made progress much quicker. My mock results gradually became more consistent. Knowing what to study reduced a lot of the stress. I'm genuinely thankful to my tutor for being patient.

    Bjorn Lewandowski

  • IB Diploma

    Our child had a clear goal but no steady study routine. The overall experience was positive from beginning to end.

    Lara Callaghan

  • IB Diploma

    What annoyed me most was losing easy points because I rushed. My tutor made it easy to ask questions from the first lesson. Focusing on past papers and mock review worked well near the exam. Connecting examples back to the main point made my writing more consistent. There was no overnight miracle, but the progress was easy to see. Thanks to everyone who supported me.

    Minho Yang

  • 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

  • Digital SAT

    Keeping up with Digital SAT while school was busy was harder than I expected. The preparation felt calmer than I expected.

    Darcy Ainsworth

  • 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

  • SSAT

    Anxiety became more visible as the exam got closer. A good connection with the tutor developed quite quickly. We quickly felt that the tutor was a good match.

    Ludovica Martinelli

  • YÖS / TR-YÖS

    The YÖS / TR-YÖS format felt unnecessarily confusing at first. The plan changed with my mock and homework results, so the work never felt random. The mocks showed where my time was actually being lost. A quick check after each answer helped me catch small mistakes. My confidence improved along with the results. I'm genuinely thankful to my tutor for being patient.

    Tyler Winslow

  • IELTS Academic

    I was close to my target, but my results changed a lot from one test to the next. After each test, we looked beyond the score and reviewed the type of each mistake. The writing feedback helped me stop repeating the same sentence-level errors. One bad mock no longer made me want to drop the whole plan. Experiencing the exam format beforehand made test day much less stressful. A big thank you to my tutor for all the support :)

    Owen Harmon

  • 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

  • UCAT

    Keeping up with UCAT while school was busy was harder than I expected. Over time, Quantitative Reasoning became one of the most organized parts of my UCAT preparation. By the end of each lesson, I knew what I was supposed to do during the week. I started seeing shorter solutions that were easier to check under time pressure. I wasn't trying to learn new topics at the very last minute. The preparation felt calmer than I expected.

    Rodrigo Montoya

  • AP Exams

    What annoyed me most was losing easy points because I rushed. The plan changed with my mock and homework results, so the work never felt random. The mocks showed where my time was actually being lost. Using the mark scheme to review my own answer was surprisingly helpful. I wasn't trying to learn new topics at the very last minute. Thanks to TestPrep for helping me stay on track.

    Noelia Aguirre

  • UCAT

    I was doing questions for Quantitative Reasoning on my own but never had a steady routine. Even in a group lesson, the tutor knew where each of us stood. I became much more comfortable asking questions in class. Thank you to the tutor who stayed supportive until the end.

    Itsuki Ota

  • SSAT

    I finally understood what was going wrong in Reading. My written answers became shorter, clearer and easier to follow. I went into the exam much calmer than I would have before.

    Valentin Mena

  • AP Exams

    Our child wasn't sure how to organize the preparation for AP Exams. Preparation looked calmer and more organized closer to the exam.

    Danilo Teixeira

  • IB Diploma

    Knowing the criteria from the start made the whole task less vague. I'm genuinely thankful to my tutor for being patient.

    Lucas Marques

  • PTE Academic

    We didn't spend extra time on things I already knew. Breaking Computer-Based Practice into smaller pieces worked much better for me. My mock results gradually became more consistent. Thank you to my tutor and the TestPrep team.

    Anders Haugen

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. The feedback I received on IB Geography was clear and practical. Going back to the lesson recordings helped when I forgot a small step. Using the mark scheme to review my own answer was surprisingly helpful. I started noticing the reason for a mistake much faster. It was an intense period, but it was worth it.

    Renata Braga

  • SSAT

    The feedback I received on Elementary Level was clear and practical. I found a better balance between regular school and exam preparation.

    Asli Yucel

  • IB Diploma

    I chose IB Chemistry this year and wanted to build a solid base from the beginning. By the end of each lesson, I knew what I was supposed to do during the week. Once I understood the reasons behind the facts, the questions felt less random. A big thank you to my tutor for all the support :)

    Lewis Chandler

  • SSAT

    At the beginning, we knew very little about the SSAT system as parents. Communication with the team was straightforward and our questions were answered. We were able to follow the mock results regularly. Mock analysis allowed us to follow progress more clearly. The tutor supported regular study, not only the lesson content. We were pleased with the support we received.

    Ethan Townsend

  • A-Level

    Our daughter needed regular support with A-Level History. Communication with the team was straightforward and our questions were answered. Being able to fit lessons around school made the process easier. Preparation looked calmer and more organized closer to the exam. We thank the tutor and the TestPrep team.

    Koray Tekin

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.