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

    Keeping school units and exam preparation in the same plan worked really well. The feedback I received on IB Business Management was clear and practical. I found a better balance between regular school and exam preparation. Thank you to the tutor who stayed supportive until the end.

    Ishita Joshi

  • Digital SAT

    At the beginning, we knew very little about the Digital SAT system as parents. Individual lesson time was used around our child's actual needs. The tutor supported regular study, not only the lesson content. A good connection with the tutor developed quite quickly. We quickly felt that the tutor was a good match.

    Trevor Foster

  • IGCSE / GCSE

    I was taking IGCSE Computer Science at school, but getting used to the exam questions took time. My tutor usually asked me to explain my thinking before stepping in. My written code answers became much more organized. I was really happy with the lessons.

    Bea Santos

  • IGCSE / GCSE

    I finally understood what was going wrong in IGCSE Accounting. My case responses became more organized and direct. After a while, the questions started to feel much more familiar.

    Nana Tamura

  • IB Diploma

    Over time, IB Global Politics became one of the most organized parts of my IB Diploma preparation. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. I learned to make a short plan before starting a long response. There was no overnight miracle, but the progress was easy to see. I became much more comfortable asking questions in class. It was an intense period, but it was worth it.

    Oliver Rawson

  • IGCSE / GCSE

    Our child wasn't sure how to organize the preparation for IGCSE / GCSE. Including assignments and internal exams made the plan sustainable. It was good to see confidence returning over time. A good connection with the tutor developed quite quickly. We thank the tutor and the TestPrep team.

    Trevor Grady

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. Full-length mocks helped me get used to the real exam pace. Past-paper questions showed me how different topics could appear together. I started tracking the type of mistake, not just the number of questions I completed. It was an intense period, but it was worth it.

    Martin Santillan

  • AP Exams

    I finally understood what was going wrong in AP Physics C: Mechanics. My confidence improved along with the results.

    Joaquin Cuevas

  • ACT

    The ACT format felt unnecessarily confusing at first. I stopped doing a huge amount one week and nothing the next. I can now decide much faster when to move on from a question. It was an intense period, but it was worth it.

    Hugo Allard

  • A-Level

    I was taking A-Level Physics at school, but getting used to the exam questions took time. Experiencing the exam format beforehand made test day much less stressful. I became much more careful with graphs, experiments and data-based questions. My tutor usually asked me to explain my thinking before stepping in. Thank you to my tutor and the TestPrep team.

    Santiago Godoy

  • Digital SAT

    Anxiety became more visible as the exam got closer. The overall experience was positive from beginning to end.

    Angus Banfield

  • Digital SAT

    Timed work showed exactly which section was slowing me down. Thanks to TestPrep for helping me stay on track.

    Lucas Silveira

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. I found a better balance between regular school and exam preparation.

    Mariana Tavares

  • A-Level

    Our daughter needed regular support with A-Level Sociology. The lessons started being followed without constant reminders from us. We would recommend the program to students and families in a similar situation.

    Grant Benson

  • A-Level

    I understood that the portfolio needed to show the process, not only the finished piece. I'm genuinely thankful to my tutor for being patient.

    Jimena Rosales

  • 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

  • SSAT

    After the first attempt, we looked for a calmer plan for the retake. Seeing the change in our child made us very happy.

    Sergio Caldeira

  • Digital SAT

    The lessons started being followed without constant reminders from us. Flexible scheduling helped during a demanding school year. We thank the tutor and the TestPrep team.

    Efe Sari

  • Digital SAT

    As the exam got closer, I wasn't sure what I should actually review. I'm genuinely thankful to my tutor for being patient.

    Ivan Haugen

  • IB Diploma

    Breaking IB Chemistry into smaller pieces worked much better for me. Separating calculation errors from content gaps made revision more useful. After a while, the questions started to feel much more familiar.

    Alba Tavares

  • IGCSE / GCSE

    When I started preparing for IGCSE / GCSE, I wasn't sure what order to study things in. My tutor could see my reasoning and usually found the source of an error quickly. Balancing Quant and Verbal in the same week worked better than studying them in blocks. I started tracking the type of mistake, not just the number of questions I completed. Having the lesson move at my pace made the process feel much easier. A big thank you to my tutor for all the support :)

    Jules Delorme

  • LSAT

    The feedback I received on Logical Reasoning was clear and practical. Going back to the lesson recordings helped when I forgot a small step. I stopped choosing answers by feel and started looking for evidence in the passage. Knowing what to study reduced a lot of the stress. My preparation became much more regular and easier to track. I'm genuinely thankful to my tutor for being patient.

    Camila Montoya

  • A-Level

    Over time, A-Level Further Mathematics became one of the most organized parts of my A-Level preparation. A quick check after each answer helped me catch small mistakes. I left the exam feeling that I had done what I could.

    Evie Whitlam

  • YÖS / TR-YÖS

    Seeing several versions of the same topic made unfamiliar questions less stressful. I'm glad I worked with my tutor through this process.

    Loic Gauthier

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500+ students supported|4.9/5 rating

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