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

  • IGCSE / GCSE

    Separating calculation errors from content gaps made revision more useful. A big thank you to my tutor for all the support :)

    Leonor Simoes

  • LNAT

    The LNAT format felt unnecessarily confusing at first. Going back to the lesson recordings helped when I forgot a small step. We didn't spend extra time on things I already knew. Discussing why the other choices were wrong helped more than I expected. I left the exam feeling that I had done what I could. I'm glad I worked with my tutor through this process.

    Nathan Vickers

  • AP Exams

    Even in a group lesson, the tutor knew where each of us stood. Over time, AP Calculus AB became one of the most organized parts of my AP Exams preparation. I became much more comfortable asking questions in class. I'm glad I worked with my tutor through this process.

    Facundo Mercado

  • Digital SAT

    We focused more on understanding what the problem asked than memorizing formulas. Thanks to everyone who supported me.

    Amandine Faure

  • AP Exams

    Keeping up with AP Exams while school was busy was harder than I expected. Thank you to my tutor and the TestPrep team.

    Priya Basu

  • GRE General

    Balancing GRE General preparation with university and work was harder than I expected. We didn't spend extra time on things I already knew. We focused more on understanding what the problem asked than memorizing formulas. I never felt awkward asking the same thing again. My tutor could see my reasoning and usually found the source of an error quickly. The preparation felt calmer than I expected.

    Thomas Baxter

  • A-Level

    The tutor supported regular study, not only the lesson content. We were pleased with the support we received.

    Gael Masson

  • ACT

    We were realistic about what could be improved in the time available. The feedback I received on ACT Science was clear and practical. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Irene Gallardo

  • IB Diploma

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. I left the exam feeling that I had done what I could.

    Marta Prieto

  • IGCSE / GCSE

    What annoyed me most was losing easy points because I rushed. After a while, the questions started to feel much more familiar.

    Siddharth Menon

  • ACT

    When I started preparing for ACT, I wasn't sure what order to study things in. I'm glad I worked with my tutor through this process.

    Felix Maes

  • Digital SAT

    I was taking Craft & Structure at school, but getting used to the exam questions took time. My mock results gradually became more consistent.

    Marissa Reynolds

  • AP Exams

    Joining lessons willingly was one of the clearest signs for us. The plan was adjusted when school exams became busy. We were pleased with the support we received.

    Anais Allard

  • UCAT

    When I started preparing for UCAT, I wasn't sure what order to study things in. It was an intense period, but it was worth it.

    Henrik Horvat

  • IMAT

    Everyone recommended different resources and I kept switching between them. Thank you to my tutor and the TestPrep team.

    Rasmus Prochazka

  • IB Diploma

    We noticed that the resources kept changing during independent study. The tutor's close attention to weaker areas gave us confidence. Seeing the change in our child made us very happy.

    Nathan Teague

  • GRE General

    I finally understood what was going wrong in Sentence Equivalence. I stopped choosing answers by feel and started looking for evidence in the passage. My preparation became much more regular and easier to track.

    Anders Mazur

  • IGCSE / GCSE

    After the first attempt, we looked for a calmer plan for the retake. Flexible scheduling helped during a demanding school year. The tutor's close attention to weaker areas gave us confidence. It was good to see confidence returning over time. The tutor supported regular study, not only the lesson content. We were pleased with the support we received.

    Wenjing Xu

  • PTE Academic

    The feedback I received on Computer-Based Practice was clear and practical. Predicting the output helped me catch small logic errors. My preparation became much more regular and easier to track.

    Rui Saez

  • TOEFL iBT

    Our child wasn't sure how to organize the preparation for TOEFL iBT. Online lessons made it possible to continue without losing time on travel. The lessons started being followed without constant reminders from us. The tutor's close attention to weaker areas gave us confidence. We were able to follow the mock results regularly. We were pleased with the support we received.

    Elena Amato

  • IB Diploma

    I finally understood what was going wrong in IB English B. Discussing why the other choices were wrong helped more than I expected. Knowing what to study reduced a lot of the stress.

    Felipe Cordero

  • ACT

    Breaking Time Management into smaller pieces worked much better for me. I can now decide much faster when to move on from a question. Knowing what to study reduced a lot of the stress.

    Preecha Kanjana

  • SSAT

    After the first attempt, we looked for a calmer plan for the retake. The plan was adjusted when school exams became busy.

    Toby Whitlam

  • PTE Academic

    I had been studying alone, but my results stopped improving after a point. The group never had more than six students, so it was easy to stay involved. The writing feedback helped me stop repeating the same sentence-level errors. I stopped doing a huge amount one week and nothing the next. Questions from other students often helped me as well. It was an intense period, but it was worth it.

    Wei Yuan

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500+ students supported|4.9/5 rating

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