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

  • Digital SAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. The preparation felt calmer than I expected.

    Pieter Bos

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. My tutor made it easy to ask questions from the first lesson. Separating calculation errors from content gaps made revision more useful. Thank you to the tutor who stayed supportive until the end.

    Ren Kimura

  • YÖS / TR-YÖS

    A quick check after each answer helped me catch small mistakes. The preparation felt calmer than I expected.

    Mette Lindberg

  • SSAT

    Our child wasn't sure how to organize the preparation for SSAT. Thank you sincerely to everyone involved.

    Thanawat Wongchai

  • LNAT

    Our daughter needed regular support with Argument Analysis. The tutor's calm approach helped protect motivation during the intensive period. Thank you sincerely to everyone involved.

    Nam Do

  • Digital SAT

    After my first attempt, I wanted the second round of preparation to feel more organized. By the end of each lesson, I knew what I was supposed to do during the week. I can now decide much faster when to move on from a question. The preparation felt calmer than I expected.

    Paula Esteves

  • IGCSE / GCSE

    Having the lesson move at my pace made the process feel much easier. Over time, IGCSE Physics became one of the most organized parts of my IGCSE / GCSE preparation. After a while, the questions started to feel much more familiar. Thanks to TestPrep for helping me stay on track.

    Riley Raines

  • A-Level

    A good connection with the tutor developed quite quickly. The overall experience was positive from beginning to end.

    Julian Werner

  • PTE Academic

    At the beginning, we knew very little about the PTE Academic system as parents. Preparation looked calmer and more organized closer to the exam.

    George Reid

  • IGCSE / GCSE

    After my first attempt, I wanted the second round of preparation to feel more organized. Near the exam, it was clear what to keep doing and what to stop. We didn't spend extra time on things I already knew. Separating strategy mistakes from content gaps made progress much quicker. My preparation became much more regular and easier to track. A big thank you to my tutor for all the support :)

    Karan Desai

  • Digital SAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. One bad mock no longer made me want to drop the whole plan. Having the lesson move at my pace made the process feel much easier. I stopped choosing answers by feel and started looking for evidence in the passage. I found a better balance between regular school and exam preparation. I'm genuinely thankful to my tutor for being patient.

    Jack Quade

  • A-Level

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. Having the lesson move at my pace made the process feel much easier. I learned to separate the information needed for a decision from the extra detail. I went into the exam much calmer than I would have before. I'm glad I worked with my tutor through this process.

    Priya Nair

  • Digital SAT

    Keeping up with Digital SAT while school was busy was harder than I expected. I wasn't trying to learn new topics at the very last minute.

    Haoran Wei

  • UCAT

    I chose Time Management this year and wanted to build a solid base from the beginning. Going back to the lesson recordings helped when I forgot a small step. We didn't spend extra time on things I already knew. Sorting mistakes after each mock changed the way I studied. There was no overnight miracle, but the progress was easy to see. I'm glad I worked with my tutor through this process.

    Mette Jovic

  • IB Diploma

    I was taking IB ESS at school, but getting used to the exam questions took time. The feedback I received on IB ESS was clear and practical. I started tracking the type of mistake, not just the number of questions I completed. Once I understood the reasons behind the facts, the questions felt less random. After a while, the questions started to feel much more familiar. I'm glad I worked with my tutor through this process.

    Aditya Wijaya

  • GMAT Focus

    My mock scores were inconsistent, so it was hard to judge my actual level. I stopped doing a huge amount one week and nothing the next. We focused more on understanding what the problem asked than memorizing formulas. Thank you to my tutor and the TestPrep team.

    Juliana Portillo

  • IB Diploma

    The IB Diploma format felt unnecessarily confusing at first. Thank you to my tutor and the TestPrep team.

    Harper Kirby

  • LNAT

    A lot of my mistakes came from rushing through the wording of the question. The preparation felt calmer than I expected.

    Callum Palmer

  • 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

  • UCAT

    I was doing questions for Quantitative Reasoning on my own but never had a steady routine. Having the lesson move at my pace made the process feel much easier. I started seeing shorter solutions that were easier to check under time pressure. My tutor made it easy to ask questions from the first lesson. Thanks to TestPrep for helping me stay on track.

    Pietro Grimaldi

  • IGCSE / GCSE

    What annoyed me most was losing easy points because I rushed. The feedback I received on IGCSE Sociology was clear and practical. My tutor made it easy to ask questions from the first lesson. Using the mark scheme to review my own answer was surprisingly helpful. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Karan Patil

  • Digital SAT

    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. I worked on keeping a steady pace instead of rushing the easy questions. My tutor usually asked me to explain my thinking before stepping in. The mocks showed where my time was actually being lost. Thank you to my tutor and the TestPrep team.

    Kayla Benson

  • A-Level

    Past-paper questions showed me how different topics could appear together. I'm genuinely thankful to my tutor for being patient.

    Ming Peng

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. I used the question bank regularly to return to weaker topics. I learned to make a short plan before starting a long response. Going back to the lesson recordings helped when I forgot a small step. Choosing questions by topic made my practice time much more useful. I was really happy with the lessons.

    Hailey Grady

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