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

  • GRE General

    I finally understood what was going wrong in Text Completion. We could make the workload lighter during busy weeks at school or university. I learned not to spend the same amount of time on every line of a long text. I left the exam feeling that I had done what I could. I found a better balance between regular school and exam preparation. I'm genuinely thankful to my tutor for being patient.

    Beatriz Mota

  • A-Level

    I finally understood what was going wrong in A-Level Business. My tutor made it easy to ask questions from the first lesson. Separating strategy mistakes from content gaps made progress much quicker. After a while, the questions started to feel much more familiar. Knowing what to study reduced a lot of the stress. A big thank you to my tutor for all the support :)

    Finn Ridley

  • IB Diploma

    I was close to my target, but my results changed a lot from one test to the next. My tutor could see my reasoning and usually found the source of an error quickly. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Lorena Peralta

  • IGCSE / GCSE

    The tutor supported regular study, not only the lesson content. We thank the tutor and the TestPrep team.

    Parker Sullivan

  • AP Exams

    When I started preparing for AP Exams, I wasn't sure what order to study things in. We didn't spend extra time on things I already knew. 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. Having the lesson move at my pace made the process feel much easier. Thank you to my tutor and the TestPrep team.

    Carla Lemus

  • IB Diploma

    After my first attempt, I wanted the second round of preparation to feel more organized. There was no overnight miracle, but the progress was easy to see.

    Annika Kral

  • AP Exams

    We noticed that the resources kept changing during independent study. We quickly felt that the tutor was a good match.

    Austin Rafferty

  • IMAT

    After my first attempt, I wanted the second round of preparation to feel more organized. I started tracking the type of mistake, not just the number of questions I completed. My tutor could see my reasoning and usually found the source of an error quickly. Separating calculation errors from content gaps made revision more useful. I left the exam feeling that I had done what I could. Thank you to my tutor and the TestPrep team.

    Wei Zhou

  • A-Level

    Breaking A-Level English Literature into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. My written answers became shorter, clearer and easier to follow. There was no overnight miracle, but the progress was easy to see. I found a better balance between regular school and exam preparation. Thanks to TestPrep for helping me stay on track.

    Neha Pillai

  • UCAT

    Over time, Verbal Reasoning became one of the most organized parts of my UCAT preparation. I wasn't trying to learn new topics at the very last minute.

    Ramon Pascual

  • A-Level

    At the beginning, we knew very little about the A-Level system as parents. Preparation looked calmer and more organized closer to the exam. A realistic plan for the final weeks reduced stress for the whole family. Joining lessons willingly was one of the clearest signs for us. The lessons started being followed without constant reminders from us. We would recommend the program to students and families in a similar situation.

    Renato Correia

  • SSAT

    At the beginning, we knew very little about the SSAT system as parents. Communication with the team was straightforward and our questions were answered. The class size kept our child from disappearing into the background. The lessons started being followed without constant reminders from us. Mistakes became something to work on rather than something to feel bad about. Thank you sincerely to everyone involved.

    Jihoon Cha

  • IGCSE / GCSE

    My tutor could see my reasoning and usually found the source of an error quickly. Breaking IGCSE Chemistry into smaller pieces worked much better for me. I left the exam feeling that I had done what I could. It was an intense period, but it was worth it.

    Valentin Coronel

  • A-Level

    At the beginning, we knew very little about the A-Level system as parents. Joining lessons willingly was one of the clearest signs for us.

    Emre Mutlu

  • TOEFL iBT

    We reduced the memorized phrases so my answers sounded more natural. I'm glad I worked with my tutor through this process.

    Wei Chen

  • IB Diploma

    We wanted our child to keep up with the school pace in IB Philosophy. Online lessons made it possible to continue without losing time on travel.

    Aditya Desai

  • AP Exams

    I chose AP Physics C: E&M this year and wanted to build a solid base from the beginning. Breaking AP Physics C: E&M into smaller pieces worked much better for me. I never felt awkward asking the same thing again. Once I understood the reasons behind the facts, the questions felt less random. I wasn't trying to learn new topics at the very last minute. It was an intense period, but it was worth it.

    Mitali Ghosh

  • IGCSE / GCSE

    Breaking IGCSE Physics into smaller pieces worked much better for me. Separating calculation errors from content gaps made revision more useful. My confidence improved along with the results.

    James Tierney

  • AP Exams

    I was taking AP English Literature at school, but getting used to the exam questions took time. Breaking AP English Literature into smaller pieces worked much better for me. One bad mock no longer made me want to drop the whole plan. I learned not to spend the same amount of time on every line of a long text. I went into the exam much calmer than I would have before. Thank you to the tutor who stayed supportive until the end.

    Lautaro Meza

  • 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

  • IMAT

    Full-length mocks helped me get used to the real exam pace. I finally understood what was going wrong in Biology. My mock results gradually became more consistent. I'm genuinely thankful to my tutor for being patient.

    Anais Lambert

  • GMAT Focus

    I came back to Critical Reasoning after a long break and wasn't sure where to begin. My tutor usually asked me to explain my thinking before stepping in. Separating strategy mistakes from content gaps made progress much quicker. Thank you to the tutor who stayed supportive until the end.

    Tianyu Sun

  • A-Level

    We wanted our child to keep up with the school pace in A-Level Business. The tutor supported regular study, not only the lesson content. We thank the tutor and the TestPrep team.

    Toby Cormack

  • TOEFL iBT

    The lessons started being followed without constant reminders from us. Online lessons made it possible to continue without losing time on travel. Seeing the change in our child made us very happy.

    Juliette Allard

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500+ students supported|4.9/5 rating

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