AI-powered voice roleplay
Practice real customer conversations, out loud.
Live speech-to-text feeds a stateful, in-character AI customer whose reply is spoken back to you. Time-boxed 5-minute sessions in Bahasa Indonesia.
Barista training, the fun way
Train baristas who are ready for anyone.
Cangkruk turns a café's own SOP & menu into gamified, level-based training — then becomes the difficult customer you practice against, and grades you.
Join the TestFlightiOS 17+ · Bahasa Indonesia UX
Busy managers have little time for hands-on coaching, so new baristas memorize SOPs or learn on real customers — inconsistent service, avoidable mistakes, low confidence. Cangkruk gives them a safe place to practice, and gives managers their time back.
How it works
Upload your docs, auto-generate the training, simulate the real job, get graded.
- 1
Ingest
A manager uploads the café's real PDF/DOCX SOP + menu.
- 2
Extract
Clean text is pulled from those files on-device — with OCR fallback for scans.
- 3
Transform
An LLM restructures the raw text into clean, leveled learning modules.
- 4
Learn
Trainees read the generated material, organized into progressive levels.
- 5
Practice
Trainees roleplay out loud against escalating AI customer personas.
- 6
Assess
The AI grades the transcript with a summary + coaching feedback.
- 7
Habit
A home-screen widget + notifications nudge daily practice.
Try it — tap through, or talk to the customer
TANTANGAN
LEVEL 1
Menu Non-Kopi Cangkruk
Untuk pelanggan yang tidak minum kopi, kita punya pilihan terbaik:
- – Matcha: Teh hijau Jepang premium dengan susu hangat/es. Manis dan earthy.
- – Chocolate: Cokelat bubuk premium dengan karakter rasa bold dan creamy.
- – Tea: Berbagai pilihan teh berkualitas tinggi.
- – Lemonade: Minuman segar berbasis lemon untuk kesegaran instan.
RIWAYAT LATIHAN
- Riwayat Latihan 505 Agustus 2026
- Riwayat Latihan 405 Agustus 2026
LEVEL 105:00
Pelanggan Ramah
Pelanggan santai yang baru pertama kali datang. Penasaran dan suka tanya rekomendasi.
00:00
TEKAN UNTUK BERBICARA
HASIL TES
Durasi latihan
03:17
Ringkasan Hasil Latihan
Kamu membuka percakapan dengan sapaan yang hangat dan langsung menawarkan menu yang memang ada, bukan jawaban mengambang. Waktu pelanggan bilang tidak minum kopi, kamu berpindah ke daftar non-kopi alih-alih memaksakan kopi — bacaan situasi yang bagus. Mengulang pesanan di akhir juga penutup yang tepat.
Saran
Sebutkan karakter rasanya, bukan cuma nama minumannya — “earthy dan agak manis” lebih membantu pelanggan daripada sekadar “ini matcha”. Tawarkan juga pilihan ukuran serta panas atau dingin sebelum mengonfirmasi pesanan.
AKHIRI SESI PERCAKAPAN INI ?
Browser demo — your speech is transcribed by your browser, but the customer's replies and the grading here are canned. The real app runs both through an LLM.
What baristas get
Four features that turn a stack of documents into a confident shift.
Lessons from your SOP & menu
Upload real docs — get structured training.
The app extracts text from your café's PDF/DOCX on-device and an LLM rewrites it into clean, leveled, beginner-friendly lessons.
Instant feedback & shareable history
Coaching after every session, saved to share.
Each session ends with an AI summary and actionable suggestions. Every practice is saved and shareable with your manager via the iOS share sheet.
Secure content management
Sensitive SOPs stay protected and on-device.
Manager-only, permission-based access. Local auth with CryptoKit AES-GCM, and user data stays on the device — nothing stored on a server.
Four customers, rising heat
The roleplay escalates. Each persona is a real café archetype — beat one to face the next.
Tier 1
Pelanggan Ramah
The Friendly Newcomer
A relaxed first-timer, curious about the menu and happy to ask for recommendations.
Tests: Product knowledge
Tier 2
Ibu-Ibu Buru-Buru
The Rushing Auntie
Impatient and easily annoyed — interrupts and complains, but softens with fast, polite service.
Tests: Efficiency under pressure
Tier 3
Pelanggan Perfeksionis
The Perfectionist
Meticulous, with special requests and allergies; only satisfied by empathy and a real solution.
Tests: Active listening & problem-solving
Tier 4
Si Karen
The Entitled One
Demands fake discounts, compares to other cafés, threatens 1-star reviews — calmed only by polite, firm boundaries.
Tests: De-escalation & composure
Built with
A native iOS app, protocol-oriented and fully mockable.
UI & App
- SwiftUI
- UIKit
- WidgetKit + App Intents
- Lottie
Data & Security
- SwiftData (offline-first)
- CryptoKit (AES-GCM)
Voice & AI
- Speech (STT)
- AVFoundation
- Gemini (LLM + TTS)
Documents
- PDFKit
- Vision OCR
- ZIPFoundation (DOCX)
Backend & Tooling
- FastAPI
- XCConfig
- Swift Testing
- Xcode Cloud
- TestFlight
Under the hood
On-device document extraction
PDFKit reads the text layer; scanned pages fall back to Vision OCR. DOCX is unzipped and its XML walked to preserve paragraphs.
LLM curriculum generation
An engineered Head Barista system prompt turns messy SOP/menu docs into warm, Markdown-structured, leveled lessons under a strict JSON contract.
Real-time voice roleplay
A streaming loop: Apple Speech STT to a stateful in-character LLM to Gemini TTS, time-boxed to 5 minutes with a countdown and auto-feedback.
Local secure auth
Register, login, and reset with passwords encrypted at rest via CryptoKit AES-GCM — fully on-device.
Habit & retention
A WidgetKit + App Intents widget reads shared App Group state to ask trained today, backed by scheduled local notifications.
Offline-first content
Lessons are generated once via API and stored in SwiftData, so the app works against previously generated content offline.
The team
Made at the Apple Developer Academy.