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

  • SSAT

    Keeping up with SSAT while school was busy was harder than I expected. The plan changed with my mock and homework results, so the work never felt random. A lot of my mistakes came from rushing through the wording of the question. The preparation felt calmer than I expected.

    Noemi Marchetti

  • IB Diploma

    After the first attempt, we looked for a calmer plan for the retake. Individual lesson time was used around our child's actual needs. Joining lessons willingly was one of the clearest signs for us. The lessons started being followed without constant reminders from us. The overall experience was positive from beginning to end.

    Lukas Dijkstra

  • GRE General

    The mocks showed where my time was actually being lost. I finally understood what was going wrong in Section-Adaptive Strategy. My confidence improved along with the results. Thanks to everyone who supported me.

    Dev Desai

  • YÖS / TR-YÖS

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. We could make the workload lighter during busy weeks at school or university. I used the question bank regularly to return to weaker topics. A quick check after each answer helped me catch small mistakes. I found a better balance between regular school and exam preparation. I was really happy with the lessons.

    Lorenzo Rossetti

  • IB Diploma

    I finally understood what was going wrong in IB Mathematics AI. I left the exam feeling that I had done what I could.

    Avni Bedi

  • Digital SAT

    The feedback I received on Advanced Math was clear and practical. The plan changed with my mock and homework results, so the work never felt random. We focused more on understanding what the problem asked than memorizing formulas. There was no overnight miracle, but the progress was easy to see. My confidence improved along with the results. Thank you to the tutor who stayed supportive until the end.

    Tessa Connelly

  • PTE Academic

    Over time, Repeat Sentence became one of the most organized parts of my PTE Academic preparation. I learned not to lose the rest of a listening task because I missed one word. After a while, the questions started to feel much more familiar.

    Hao Liu

  • ACT

    When I started preparing for ACT, I wasn't sure what order to study things in. We were realistic about what could be improved in the time available. There was no overnight miracle, but the progress was easy to see. It was an intense period, but it was worth it.

    Lorena Renteria

  • AP Exams

    I was close to my target, but my results changed a lot from one test to the next. I'm genuinely thankful to my tutor for being patient.

    Georgia Fletcher

  • AP Exams

    Our child wasn't sure how to organize the preparation for AP Exams. Preparation looked calmer and more organized closer to the exam. We were pleased with the support we received.

    Jules Chartier

  • IMAT

    I was close to my target, but my results changed a lot from one test to the next. I finally understood what was going wrong in Mathematics. One bad mock no longer made me want to drop the whole plan. We focused more on understanding what the problem asked than memorizing formulas. My mock results gradually became more consistent. Thanks to everyone who supported me.

    Enrico Piras

  • IGCSE / GCSE

    I stopped listing facts in essays and started building an actual argument. I'm genuinely thankful to my tutor for being patient.

    Priya Reddy

  • LSAT

    After my first attempt, I wanted a calmer and more focused plan for the retake. One bad mock no longer made me want to drop the whole plan. My written answers became shorter, clearer and easier to follow. Thank you to my tutor and the TestPrep team.

    Sora Cho

  • Digital SAT

    The feedback I received on Reading & Writing was clear and practical. The plan changed with my mock and homework results, so the work never felt random. A lot of my mistakes came from rushing through the wording of the question. My mock results gradually became more consistent. I'm glad I worked with my tutor through this process.

    Ingrid Kovac

  • IGCSE / GCSE

    We didn't spend extra time on things I already knew. The feedback I received on IGCSE English as a Second Language was clear and practical. I started noticing the reason for a mistake much faster. Thank you to the tutor who stayed supportive until the end.

    Diego Santana

  • IMAT

    I learned to make a short plan before starting a long response. I'm genuinely thankful to my tutor for being patient.

    Tessa Whitaker

  • GRE General

    The feedback I received on Data Analysis was clear and practical. My mock results gradually became more consistent.

    Eleanor Baxter

  • GMAT Focus

    I came back to Quantitative Reasoning after a long break and wasn't sure where to begin. After a while, the questions started to feel much more familiar.

    Ece Ersoy

  • IMAT

    The feedback I received on Physics was clear and practical. Once I understood the reasons behind the facts, the questions felt less random. I left the exam feeling that I had done what I could.

    Alessia Serra

  • SSAT

    I wasn't starting from zero, but the same mistakes kept showing up in my mocks. We were realistic about what could be improved in the time available. I went into the exam much calmer than I would have before. It was an intense period, but it was worth it.

    Daan Hoffmann

  • IMAT

    Our child wasn't sure how to organize the preparation for IMAT. It was good to see confidence returning over time.

    Kazuki Ota

  • IB Diploma

    What annoyed me most was losing easy points because I rushed. We were realistic about what could be improved in the time available. Source questions became easier once I noticed how small details affected the mark. My tutor made it easy to ask questions from the first lesson. A clear plan for the final weeks made priorities much easier to see. It was an intense period, but it was worth it.

    Takumi Yamamoto

  • GMAT Focus

    I knew my target, but I didn't have a realistic routine for GMAT Focus. Breaking Reading Comprehension into smaller pieces worked much better for me. We could make the workload lighter during busy weeks at school or university. Discussing why the other choices were wrong helped more than I expected. I wasn't trying to learn new topics at the very last minute. I'm genuinely thankful to my tutor for being patient.

    Natalie Lawrence

  • IGCSE / GCSE

    What annoyed me most was losing easy points because I rushed. After each test, we looked beyond the score and reviewed the type of each mistake. With data-heavy questions, I began reading the task before getting lost in the table. We could make the workload lighter during busy weeks at school or university. I was really happy with the lessons.

    Wouter Peeters

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500+ students supported|4.9/5 rating

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