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

  • GMAT Focus

    I knew my target, but I didn't have a realistic routine for GMAT Focus. I went into the exam much calmer than I would have before.

    Margaux Granger

  • GMAT Focus

    I knew my target, but I didn't have a realistic routine for GMAT Focus. It was an intense period, but it was worth it.

    Tao Zeng

  • GMAT Focus

    Breaking Critical Reasoning into smaller pieces worked much better for me. Going back to the lesson recordings helped when I forgot a small step. Separating strategy mistakes from content gaps made progress much quicker. My mock results gradually became more consistent. I wasn't trying to learn new topics at the very last minute. I'm glad I worked with my tutor through this process.

    Bora Oh

  • GMAT Focus

    I came back to Verbal Reasoning after a long break and wasn't sure where to begin. I started noticing the reason for a mistake much faster.

    Callum Wakefield

  • GMAT Focus

    The class felt relaxed enough to ask questions without overthinking it. Breaking Verbal Reasoning into smaller pieces worked much better for me. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Adrien Granger

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. There was no overnight miracle, but the progress was easy to see.

    Ananya Chawla

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. The plan changed with my mock and homework results, so the work never felt random. A quick check after each answer helped me catch small mistakes. Thanks to TestPrep for helping me stay on track.

    Annika Kristensen

  • GMAT Focus

    I came back to Reading Comprehension after a long break and wasn't sure where to begin. We could make the workload lighter during busy weeks at school or university. After each test, we looked beyond the score and reviewed the type of each mistake. Discussing why the other choices were wrong helped more than I expected. I became much more comfortable asking questions in class. The preparation felt calmer than I expected.

    Declan Jarvis

  • GMAT Focus

    I had been studying alone, but my results stopped improving after a point. My confidence improved along with the results.

    Trent Aldridge

  • GMAT Focus

    My mock scores were inconsistent, so it was hard to judge my actual level. Over time, Critical Reasoning became one of the most organized parts of my GMAT Focus preparation. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. 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. Thank you to the tutor who stayed supportive until the end.

    Teagan Hensley

  • GMAT Focus

    In Data Sufficiency, timing was costing me more points than the content itself. My tutor usually asked me to explain my thinking before stepping in. My case responses became more organized and direct. I was really happy with the lessons.

    Erin McGrath

  • GMAT Focus

    I had collected too many resources without knowing when to use any of them. Having the lesson move at my pace made the process feel much easier. Seeing several versions of the same topic made unfamiliar questions less stressful. One bad mock no longer made me want to drop the whole plan. My tutor could see my reasoning and usually found the source of an error quickly. It was an intense period, but it was worth it.

    Giulia Coppola

  • 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

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. After a while, the questions started to feel much more familiar.

    Riku Ota

  • GMAT Focus

    Over time, Reading Comprehension became one of the most organized parts of my GMAT Focus preparation. I wasn't trying to learn new topics at the very last minute.

    Donghyun Song

  • 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

  • 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

  • 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

  • GMAT Focus

    Over time, Reading Comprehension became one of the most organized parts of my GMAT Focus preparation. My written answers became shorter, clearer and easier to follow. I became much more comfortable asking questions in class.

    Luca Leone

  • GMAT Focus

    My mock scores were inconsistent, so it was hard to judge my actual level. My mock results gradually became more consistent.

    Bailey Draper

  • GMAT Focus

    A quick check after each answer helped me catch small mistakes. I'm genuinely thankful to my tutor for being patient.

    Bo Li

  • GMAT Focus

    I knew my target, but I didn't have a realistic routine for GMAT Focus. After a while, the questions started to feel much more familiar.

    Takumi Yoshida

  • GMAT Focus

    Balancing GMAT Focus preparation with university and work was harder than I expected. I'm glad I worked with my tutor through this process.

    Edoardo Fontana

  • GMAT Focus

    Over time, Verbal Reasoning became one of the most organized parts of my GMAT Focus preparation. I started tracking the type of mistake, not just the number of questions I completed. Discussing why the other choices were wrong helped more than I expected. My mock results gradually became more consistent. After a while, the questions started to feel much more familiar. Thank you to the tutor who stayed supportive until the end.

    Yuxin Fang

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500+ students supported|4.9/5 rating

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