Cognition's autonomous software engineer that ships real pull requests
Pie records 11,551 monthly visits with +21.8% month-over-month growth and Contact for Pricing pricing. Prep Edu records 1,414,975 monthly visits with -19.8% growth and Paid pricing.

Agentic QA that tests every change like a real user and opens the fix PR
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | pie.inc | prepedu.com |
| Pricing Model | Contact for Pricing | Paid |
| Monthly Visits | 11.55K (11,551) | 1.41M (1,414,975) |
| MoM Traffic Delta | +2.07K (+21.8%) | -349.68K (-19.8%) |
| Primary Market & Share | 🇺🇸 United States (88.2%) | 🇻🇳 Vietnam (78%) |
| Direct Visits / mo | 5.13K | 479.07K |
| User Rating | 4.5 | 4.1 |
| Supported Platforms | Website | Website |

Agentic QA that tests every change like a real user and opens the fix PR
Pie maps your real user flows from a URL or build and finds elements by looking at the screen, so there are no selectors to maintain.
Each PR is read and exercised against the running app, so regressions are caught before they reach users.
Tests survive redesigns and deep links because they rely on how the interface looks and behaves, not on brittle CSS or accessibility paths.
When Pie confirms a bug, it drafts a fix PR with the root cause and the applied change, ready for review and merge.
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms
Rehearse exam-style speaking tasks with AI scoring and multi-layer feedback covering grammar, pronunciation, fluency, vocabulary and how well your ideas are organised.
Submit written answers and receive automated scoring with suggestions on structure, vocabulary range and accuracy to raise your band score.
A companion that answers questions, walks through difficult tasks and keeps learners motivated between lessons.
Structured IELTS, TOEIC and HSK programmes, a PrepTalk English speaking course, entry tests and mock exams that mirror the real format.
Cognition's autonomous software engineer that ships real pull requests
Focuses heavily on PTE and IELTS exam practice with robust AI scoring, similar to Prep Edu's test rooms.
Focuses heavily on PTE and IELTS exam practice with robust AI scoring, similar to Prep Edu's test rooms.
SpecialistAI English speaking coach with instant pronunciation feedback
Free / Open-sourceGenAI-native end-to-end QA agent that plans, writes and heals tests in plain language

Provides online exam prep and instant AI scoring for PTE and IELTS, but with a simpler course structure.
Provides online exam prep and instant AI scoring for PTE and IELTS, but with a simpler course structure.

SpecialistLearn a new language by talking to lifelike AI tutors
SpecialistLearn a new language by talking to lifelike AI tutors
Delivers automated AI scoring for major English proficiency exams, though less focused on structured video lessons than Prep.
Delivers automated AI scoring for major English proficiency exams, though less focused on structured video lessons than Prep.

SpecialistSpeak a new language from day one with human-like AI and expert human tutors
SpecialistSpeak a new language from day one with human-like AI and expert human tutors

Free / Open-sourceShip with confidence: one system of record for manual, automated, and CI tests
Free / Open-sourceShip with confidence: one system of record for manual, automated, and CI tests
Offers excellent AI speaking coaching for IELTS, but lacks the comprehensive written course library found in Prep.
Offers excellent AI speaking coaching for IELTS, but lacks the comprehensive written course library found in Prep.

AI security platform that finds exposures, proves they're exploitable, and ships the fix
AI security platform that finds exposures, proves they're exploitable, and ships the fix
Free / Open-sourceAI-augmented quality platform for web, mobile, API and desktop testing
Free / Open-sourceAI-augmented quality platform for web, mobile, API and desktop testing