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

  • ACT

    I was doing questions for Optional Writing on my own but never had a steady routine. I never felt awkward asking the same thing again. Lesson times could fit around school, university or work. Discussing why the other choices were wrong helped more than I expected. I became much more comfortable asking questions in class. I'm genuinely thankful to my tutor for being patient.

    Ruben Leitao

  • ACT

    The plan was adjusted when school exams became busy. Communication with the team was straightforward and our questions were answered. We were pleased with the support we received.

    Vikram Mehta

  • ACT

    Over time, ACT English became one of the most organized parts of my ACT preparation. Near the exam, it was clear what to keep doing and what to stop. My written answers became shorter, clearer and easier to follow. I became much more comfortable asking questions in class. After a while, the questions started to feel much more familiar. I'm genuinely thankful to my tutor for being patient.

    Felipe Braga

  • ACT

    Everyone recommended different resources and I kept switching between them. After each test, we looked beyond the score and reviewed the type of each mistake. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Franco Benitez

  • ACT

    I can now decide much faster when to move on from a question. Thank you to the tutor who stayed supportive until the end.

    Piper Vaughn

  • ACT

    The ACT format felt unnecessarily confusing at first. There was no overnight miracle, but the progress was easy to see.

    Brooke Jarvis

  • ACT

    At the beginning, we knew very little about the ACT system as parents. Flexible scheduling helped during a demanding school year. Individual lesson time was used around our child's actual needs. The plan was adjusted when school exams became busy. A good connection with the tutor developed quite quickly. The overall experience was positive from beginning to end.

    Lara Murray

  • ACT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. Near the exam, it was clear what to keep doing and what to stop. Past-paper questions showed me how different topics could appear together. Thank you to the tutor who stayed supportive until the end.

    Gonzalo Ponce

  • ACT

    Everyone recommended different resources and I kept switching between them. I stopped doing a huge amount one week and nothing the next. Once I understood the reasons behind the facts, the questions felt less random. Thank you to the tutor who stayed supportive until the end.

    Catalina Meza

  • ACT

    Joining lessons willingly was one of the clearest signs for us. We quickly felt that the tutor was a good match.

    Fajar Ramadhan

  • ACT

    The feedback I received on ACT Reading was clear and practical. I left the exam feeling that I had done what I could.

    Yunfei Peng

  • ACT

    The ACT format felt unnecessarily confusing at first. Thank you to the tutor who stayed supportive until the end.

    Vinicius Borges

  • ACT

    Everyone recommended different resources and I kept switching between them. I started tracking the type of mistake, not just the number of questions I completed. Lesson times could fit around school, university or work. I learned not to spend the same amount of time on every line of a long text. I started noticing the reason for a mistake much faster. It was an intense period, but it was worth it.

    Milagros Carvajal

  • 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

  • ACT

    I was close to my target, but my results changed a lot from one test to the next. The class felt relaxed enough to ask questions without overthinking it. I became much more comfortable asking questions in class. I'm genuinely thankful to my tutor for being patient.

    Mikkel Babic

  • ACT

    We noticed that the resources kept changing during independent study. Online lessons made it possible to continue without losing time on travel. The lessons started being followed without constant reminders from us. Topic-based question practice made study time more focused. We were able to follow the mock results regularly. Thank you sincerely to everyone involved.

    Ramiro Segura

  • ACT

    I was doing questions for ACT English on my own but never had a steady routine. Thank you to the tutor who stayed supportive until the end.

    Nicolas Carvajal

  • ACT

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

    Georgia Atkinson

  • ACT

    At the beginning, we knew very little about the ACT system as parents. Joining lessons willingly was one of the clearest signs for us. We were happy with both the teaching and the communication.

    Jordan Goodall

  • ACT

    Flexible scheduling helped during a demanding school year. A good connection with the tutor developed quite quickly. The overall experience was positive from beginning to end.

    Gaia Donati

  • ACT

    After my first attempt, I wanted the second round of preparation to feel more organized. The feedback I received on Optional Writing was clear and practical. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. I learned not to spend the same amount of time on every line of a long text. I found a better balance between regular school and exam preparation. Thank you to my tutor and the TestPrep team.

    Yunfei Hu

  • ACT

    I was taking ACT Math at school, but getting used to the exam questions took time. I stopped doing a huge amount one week and nothing the next. We focused more on understanding what the problem asked than memorizing formulas. I'm glad I worked with my tutor through this process.

    Priscila Nunes

  • ACT

    It was good to see confidence returning over time. The tutor supported regular study, not only the lesson content. We would recommend the program to students and families in a similar situation.

    Beatrice DeLuca

  • ACT

    Over time, Time Management became one of the most organized parts of my ACT preparation. My confidence improved along with the results.

    Margaux Brunet

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500+ students supported|4.9/5 rating

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