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

  • Digital SAT

    Having the lesson move at my pace made the process feel much easier. The feedback I received on Information & Ideas was clear and practical. My confidence improved along with the results. Thanks to TestPrep for helping me stay on track.

    Cooper Tully

  • IB Diploma

    The feedback I received on IB Mathematics AA was clear and practical. Near the exam, it was clear what to keep doing and what to stop. A quick check after each answer helped me catch small mistakes. I went into the exam much calmer than I would have before. There was no overnight miracle, but the progress was easy to see. A big thank you to my tutor for all the support :)

    Cody Wylie

  • IB Diploma

    I chose IB Physics this year and wanted to build a solid base from the beginning. My preparation became much more regular and easier to track.

    Junseo Cho

  • SSAT

    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. Having the lesson move at my pace made the process feel much easier. I worked on keeping a steady pace instead of rushing the easy questions. I became much more comfortable asking questions in class. I was really happy with the lessons.

    Intan Nasution

  • IB Diploma

    When I started preparing for IB Diploma, I wasn't sure what order to study things in. Full-length mocks helped me get used to the real exam pace. My confidence improved along with the results. Thanks to everyone who supported me.

    Ebba Bakke

  • UCAT

    The feedback I received on Quantitative Reasoning was clear and practical. My confidence improved along with the results.

    Luka Svoboda

  • AP Exams

    Knowing the topic wasn't always enough; I had to learn which information the question actually needed. Thanks to TestPrep for helping me stay on track.

    Esteban Beltran

  • 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

  • A-Level

    We weren't sure whether online lessons would be effective. Mistakes became something to work on rather than something to feel bad about. The overall experience was positive from beginning to end.

    Jenna Montgomery

  • IELTS Academic

    Our daughter needed regular support with Speaking. Online lessons made it possible to continue without losing time on travel. Joining lessons willingly was one of the clearest signs for us. Individual lesson time was used around our child's actual needs. The plan was adjusted when school exams became busy. We were pleased with the support we received.

    Thiago Mendes

  • Digital SAT

    When I started preparing for Digital SAT, I wasn't sure what order to study things in. My confidence improved along with the results.

    Chaewon Kang

  • IB Diploma

    It was good to see confidence returning over time. Seeing the change in our child made us very happy.

    Irene Caldeira

  • A-Level

    Breaking A-Level History into smaller pieces worked much better for me. Connecting examples back to the main point made my writing more consistent. My preparation became much more regular and easier to track.

    Autumn Winslow

  • Digital SAT

    I was taking Bluebook adaptif modüller at school, but getting used to the exam questions took time. I was really happy with the lessons.

    Isadora Braga

  • A-Level

    I finally understood what was going wrong in A-Level Economics. I wasn't trying to learn new topics at the very last minute.

    Bryce Coleman

  • AP Exams

    I chose AP Physics 1 this year and wanted to build a solid base from the beginning. I never felt awkward asking the same thing again. Knowing the topic wasn't always enough; I had to learn which information the question actually needed. I'm glad I worked with my tutor through this process.

    Chase Whitaker

  • ACT

    Breaking Optional Writing into smaller pieces worked much better for me. I stopped choosing answers by feel and started looking for evidence in the passage. My confidence improved along with the results.

    Huiying Dai

  • AP Exams

    The feedback I received on AP Calculus AB was clear and practical. My preparation became much more regular and easier to track.

    Pavel Holm

  • SSAT

    As the exam got closer, I wasn't sure what I should actually review. My preparation became much more regular and easier to track.

    Erin Langley

  • IGCSE / GCSE

    Keeping up with IGCSE / GCSE while school was busy was harder than I expected. It was an intense period, but it was worth it.

    Leonardo Ocampo

  • PTE Academic

    We weren't sure whether online lessons would be effective. Seeing the change in our child made us very happy.

    Harriet Mercer

  • UCAT

    The UCAT format felt unnecessarily confusing at first. By the end of each lesson, I knew what I was supposed to do during the week. I can now decide much faster when to move on from a question. It was an intense period, but it was worth it.

    Pooja Bhatia

  • IELTS Academic

    The IELTS Academic format felt unnecessarily confusing at first. I started tracking the type of mistake, not just the number of questions I completed. It took time to stop worrying about mistakes in speaking practice, but the lessons felt relaxed. The preparation felt calmer than I expected.

    Ruben Hoffmann

  • IB Diploma

    Our son's school schedule was already very busy. The plan was adjusted when school exams became busy. We thank the tutor and the TestPrep team.

    Ebba Horvat

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500+ students supported|4.9/5 rating

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