TST Prep
TST Prep: A broad web-based prep option for TOEFL learners who want structured study or teacher support. Ranked #17 of 37 in Language Test Prep Apps by our editors (6.6/10); pricing: Free plan; best for TOEFL prep with teacher and class options.
At a glance
- Editor score6.6 / 10
- PricingFree plan
- Best forTOEFL prep with teacher and class options
- Free planYes
- Paid from$37/yr
- Supported examsTOEFL iBT; Duolingo English Test
- Founded2019
- Facts checked20 Sep 2026
Where it wins
- Free TOEFL materials plus paid courses and practice packs
- Private lessons, group classes, and teacher evaluations
- Mock tests, study plans, downloads, and DET AI feedback
Where it doesn't
- Access is web-only
- Paid offerings range from $27 to $897
- Most TOEFL products provide time-limited access
Our verdict on TST Prep
TST Prep is a web-based language-test preparation platform for students preparing for the TOEFL iBT or Duolingo English Test. Its coverage includes teacher-created courses, interactive practice questions, mock tests, study plans, downloadable PDFs and e-books, speaking and writing feedback, private lessons, group classes, and AI-assisted feedback for DET preparation. Free accounts provide TOEFL practice materials, while paid products add more structured courses, evaluations, lessons, and practice resources. It is best suited to TOEFL learners who want multiple study formats, including teacher support and live class options.
The pricing structure is unusually broad for a prep product. Paid offerings start at $27, while listed TOEFL options include the $37 TOEFL Emergency Course, the $197 TOEFL Score Builder Program, private-lesson packages at $397, $597, and $897, and reading, writing, or speaking group classes at $247 each. The Score Builder Program includes 20 complete practice tests, 120+ hours of practice, and 1,000+ activities. Private packages add six, 10, or 18 online lessons, with speaking or writing feedback and practice tests. Most TOEFL products are one-time purchases with one-year access rather than subscriptions.
TST Prep’s strongest differentiator is the combination of independent practice and instructor-led support. Learners can choose downloadable materials and mock tests, focused group classes, or private online lessons, while DET preparation adds AI writing and speaking feedback. Email support is included across the listed paid plans, and the site states a 7-day money-back guarantee for courses. The trade-off is flexibility: access is web-only, and DET products use one-month or six-month access periods. Choose TST Prep if TOEFL preparation, teacher evaluation, or classes are priorities; learners seeking a mobile app or a single simple subscription may prefer a narrower format.
Your product? Our editors can test TST Prep in depth and publish a review, labelled as paid · from $149/mo →
TST Prep pricing
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TST Prep fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $37/yr |
| Supported exams | TOEFL iBT; Duolingo English Test |
| Mock tests | Yes |
| Speaking practice | Yes |
| Writing feedback | Yes |
| Score tracking | Not verified |
| Study plan | Yes |
| Supported platforms | web |
| Money-back guarantee | 7 days |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Community |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | tstprep.com |
| Facts checked | 20 Sep 2026 |
Alternatives to TST Prep
- IELTS ReadyA broad, free IELTS resource with full mocks, AI feedback and study guidance.9.3
- TOEFL TestReadyA focused TOEFL iBT prep portal with substantial free practice and optional paid depth.9.2
- Official PTE Academic AI PracticeA focused official PTE Academic resource with generous practice depth and short-term access passes.9.1
See all TST Prep alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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