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

    After my first attempt, I wanted a calmer and more focused plan for the retake. The group never had more than six students, so it was easy to stay involved. I stopped choosing answers by feel and started looking for evidence in the passage. Going back to the lesson recordings helped when I forgot a small step. Questions from other students often helped me as well. It was an intense period, but it was worth it.

    Marine Roussel

  • GRE General

    After my first attempt, I wanted a calmer and more focused plan for the retake. Having the lesson move at my pace made the process feel much easier. I left the exam feeling that I had done what I could. Thanks to everyone who supported me.

    Sophie Gallagher

  • GRE General

    I had been studying alone, but my results stopped improving after a point. Choosing questions by topic made my practice time much more useful. I started seeing shorter solutions that were easier to check under time pressure. Going back to the lesson recordings helped when I forgot a small step. After enough examples of the same question type, the repeated mistakes decreased. Thanks to TestPrep for helping me stay on track.

    Hayden Lambert

  • GRE General

    I came back to Verbal Reasoning after a long break and wasn't sure where to begin. Thanks to TestPrep for helping me stay on track.

    Matilda Aldridge

  • GRE General

    The feedback I received on Analytical Writing was clear and practical. I went into the exam much calmer than I would have before.

    Alper Gokce

  • GRE General

    Over time, Data Analysis became one of the most organized parts of my GRE General preparation. I started noticing the reason for a mistake much faster.

    Connor Brennan

  • 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

  • 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

  • GRE General

    I had been studying alone, but my results stopped improving after a point. Working across different difficulty levels made new questions feel less surprising. After a while, the questions started to feel much more familiar. Thanks to everyone who supported me.

    Erik Stanic

  • GRE General

    I had collected too many resources without knowing when to use any of them. The feedback I received on Verbal Reasoning was clear and practical. When I got something wrong, we looked at why I chose that answer instead of only checking the solution. A lot of my mistakes came from rushing through the wording of the question. I went into the exam much calmer than I would have before. A big thank you to my tutor for all the support :)

    Shanshan Guo

  • GRE General

    I knew my target, but I didn't have a realistic routine for GRE General. Thank you to the tutor who stayed supportive until the end.

    Lalita Lertchai

  • GRE General

    After my first attempt, I wanted a calmer and more focused plan for the retake. Near the exam, it was clear what to keep doing and what to stop. Full-length mocks helped me get used to the real exam pace. I started seeing shorter solutions that were easier to check under time pressure. My confidence improved along with the results. Thanks to everyone who supported me.

    Hugo Lambert

  • GRE General

    In Text Completion, timing was costing me more points than the content itself. The plan changed with my mock and homework results, so the work never felt random. My tutor could see my reasoning and usually found the source of an error quickly. My written answers became shorter, clearer and easier to follow. I found a better balance between regular school and exam preparation. Thanks to everyone who supported me.

    Lan Do

  • GRE General

    I had collected too many resources without knowing when to use any of them. One bad mock no longer made me want to drop the whole plan. Discussing why the other choices were wrong helped more than I expected. I'm glad I worked with my tutor through this process.

    Duy Le

  • GRE General

    I had collected too many resources without knowing when to use any of them. I became much more comfortable asking questions in class.

    Lucy Palmer

  • GRE General

    Over time, Section-Adaptive Strategy became one of the most organized parts of my GRE General preparation. My mock results gradually became more consistent.

    Darcy Whitlam

  • GRE General

    Balancing GRE General preparation with university and work was harder than I expected. My mock results gradually became more consistent.

    Akash Suri

  • GRE General

    Over time, Quantitative Reasoning became one of the most organized parts of my GRE General preparation. A quick check after each answer helped me catch small mistakes. My mock results gradually became more consistent.

    Paige Prescott

  • GRE General

    After my first attempt, I wanted a calmer and more focused plan for the retake. We could make the workload lighter during busy weeks at school or university. My written answers became shorter, clearer and easier to follow. The preparation felt calmer than I expected.

    Junseo Sung

  • GRE General

    Balancing GRE General preparation with university and work was harder than I expected. Over time, Sentence Equivalence became one of the most organized parts of my GRE General preparation. 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. My preparation became much more regular and easier to track. Thanks to everyone who supported me.

    Zeynep Sari

  • GRE General

    Balancing GRE General preparation with university and work was harder than I expected. A clear plan for the final weeks made priorities much easier to see. I wasn't trying to learn new topics at the very last minute. I'm glad I worked with my tutor through this process.

    Matilda Gilmour

  • GRE General

    After my first attempt, I wanted a calmer and more focused plan for the retake. My tutor could see my reasoning and usually found the source of an error quickly. Learning when to leave a hard question made a real difference to my timing. I never felt awkward asking the same thing again. Lesson times could fit around school, university or work. Thank you to my tutor and the TestPrep team.

    Mariano Tamayo

  • GRE General

    I knew my target, but I didn't have a realistic routine for GRE General. The feedback I received on Quantitative Reasoning was clear and practical. 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. I became much more comfortable asking questions in class. I'm glad I worked with my tutor through this process.

    Mengyao Han

  • GRE General

    Over time, Data Analysis became one of the most organized parts of my GRE General preparation. A quick check after each answer helped me catch small mistakes. My preparation became much more regular and easier to track.

    Jihye Ko

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500+ students supported|4.9/5 rating

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