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

  • SSAT

    The feedback I received on Verbal was clear and practical. I started noticing the reason for a mistake much faster.

    Imogen Ridley

  • A-Level

    The A-Level format felt unnecessarily confusing at first. The group never had more than six students, so it was easy to stay involved. I learned to separate the information needed for a decision from the extra detail. One bad mock no longer made me want to drop the whole plan. The class felt relaxed enough to ask questions without overthinking it. A big thank you to my tutor for all the support :)

    Bora Cha

  • A-Level

    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. I could work on exam technique without falling behind in class. I started seeing shorter solutions that were easier to check under time pressure. My mock results gradually became more consistent. I was really happy with the lessons.

    Miles Gibson

  • AP Exams

    Breaking AP Computer Science Principles into smaller pieces worked much better for me. My confidence improved along with the results.

    Bruna Nunes

  • IB Diploma

    After enough examples of the same question type, the repeated mistakes decreased. The feedback I received on Extended Essay (EE) was clear and practical. I went into the exam much calmer than I would have before. I'm glad I worked with my tutor through this process.

    Brooklyn Keegan

  • AP Exams

    I finally understood what was going wrong in AP Calculus BC. I stopped doing a huge amount one week and nothing the next. A quick check after each answer helped me catch small mistakes. I became much more comfortable asking questions in class. After a while, the questions started to feel much more familiar. Thank you to the tutor who stayed supportive until the end.

    Woojin Jin

  • LNAT

    We wanted our child to keep up with the school pace in Argument Analysis. A good connection with the tutor developed quite quickly. Joining lessons willingly was one of the clearest signs for us. The tutor's close attention to weaker areas gave us confidence. Flexible scheduling helped during a demanding school year. Thank you sincerely to everyone involved.

    Daiki Tamura

  • UCAT

    I was taking Verbal Reasoning at school, but getting used to the exam questions took time. A big thank you to my tutor for all the support :)

    Bea Valdez

  • GMAT Focus

    In Data Sufficiency, timing was costing me more points than the content itself. Even in a group lesson, the tutor knew where each of us stood. I learned to separate the information needed for a decision from the extra detail. I stopped doing a huge amount one week and nothing the next. Questions from other students often helped me as well. A big thank you to my tutor for all the support :)

    Huiying Luo

  • PTE Academic

    I came back to Reading after a long break and wasn't sure where to begin. The preparation felt calmer than I expected.

    Eduardo Nascimento

  • A-Level

    I chose A-Level Business this year and wanted to build a solid base from the beginning. Breaking A-Level Business into smaller pieces worked much better for me. Near the exam, it was clear what to keep doing and what to stop. Balancing Quant and Verbal in the same week worked better than studying them in blocks. I went into the exam much calmer than I would have before. Thanks to TestPrep for helping me stay on track.

    Rani Gunawan

  • IGCSE / GCSE

    Breaking IGCSE Economics into smaller pieces worked much better for me. There was no overnight miracle, but the progress was easy to see.

    Bora Min

  • GMAT Focus

    Learning when to leave a hard question made a real difference to my timing. I'm glad I worked with my tutor through this process.

    Phoebe Callaghan

  • A-Level

    Keeping up with A-Level while school was busy was harder than I expected. I'm glad I worked with my tutor through this process.

    Ethan Raines

  • IB Diploma

    As the exam got closer, I wasn't sure what I should actually review. A clear plan for the final weeks made priorities much easier to see. I started noticing the reason for a mistake much faster. I'm glad I worked with my tutor through this process.

    Brianna Chandler

  • GMAT Focus

    I had been studying alone, but my results stopped improving after a point. Breaking Reading Comprehension into smaller pieces worked much better for me. I started tracking the type of mistake, not just the number of questions I completed. A lot of my mistakes came from rushing through the wording of the question. I left the exam feeling that I had done what I could. Thank you to the tutor who stayed supportive until the end.

    Amelie Chartier

  • A-Level

    I was close to my target, but my results changed a lot from one test to the next. Over time, A-Level Psychology became one of the most organized parts of my A-Level preparation. Near the exam, it was clear what to keep doing and what to stop. I stopped listing facts in essays and started building an actual argument. Knowing what to study reduced a lot of the stress. I'm genuinely thankful to my tutor for being patient.

    Maya Carver

  • AP Exams

    The feedback I received on AP English Literature was clear and practical. Near the exam, it was clear what to keep doing and what to stop. Discussing why the other choices were wrong helped more than I expected. My mock results gradually became more consistent. My preparation became much more regular and easier to track. A big thank you to my tutor for all the support :)

    Linnea Wozniak

  • AP Exams

    As the exam got closer, I wasn't sure what I should actually review. After each test, we looked beyond the score and reviewed the type of each mistake. I started tracing code line by line instead of only reading it quickly. I never felt awkward asking the same thing again. Experiencing the exam format beforehand made test day much less stressful. I'm glad I worked with my tutor through this process.

    Fabien Couturier

  • IELTS Academic

    A good connection with the tutor developed quite quickly. Communication with the team was straightforward and our questions were answered. We were pleased with the support we received.

    Marcos Campos

  • YÖS / TR-YÖS

    I was doing questions for IQ & Logic on my own but never had a steady routine. I went into the exam much calmer than I would have before.

    Ignacio Paredes

  • IGCSE / GCSE

    Breaking IGCSE Statistics into smaller pieces worked much better for me. My tutor made it easy to ask questions from the first lesson. We focused more on understanding what the problem asked than memorizing formulas. I started noticing the reason for a mistake much faster. My confidence improved along with the results. Thank you to my tutor and the TestPrep team.

    Lautaro Tellez

  • IELTS Academic

    Keeping up with IELTS Academic while school was busy was harder than I expected. A big thank you to my tutor for all the support :)

    Florencia Meza

  • Digital SAT

    I was doing questions for Advanced Math on my own but never had a steady routine. I started tracking the type of mistake, not just the number of questions I completed. I started seeing shorter solutions that were easier to check under time pressure. Thanks to everyone who supported me.

    Paige Hensley

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500+ students supported|4.9/5 rating

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