Official Documentation & Reference

Everything you need to understand how Kestro is engineered.

Detailed technical documentation covering our household roles, mathematical split formulas, cryptographic security model, and data privacy architecture.

Core Architecture

Household Roles & Permissions

Complete matrix of Admin, Earner, and Member capabilities, cap modifications, and invitation controls.

4 min readRead Specification

Financial Engine

Split Mathematics & Algorithms

How Kestro calculates income-proportional contributions, equal halves, and month-end net settlement balances.

5 min readRead Specification

Enterprise Security

Security & Cryptographic Model

TLS 1.3 ciphers, AES-256 storage, Android Biometric KeyStore hardware, and database Step-Up TOTP MFA.

6 min readRead Specification

Deep Link Protocol

Referral & App Links Contract

8-character Crockford Base32 grammar, Digital Asset Links, and Play Store install referrer parameter mapping.

3 min readRead Specification

Data Portability

Data Export & Schema Contract

Standard CSV and Excel column definitions, date formats, and tax-ready personal ledger backup rules.

3 min readRead Specification

User Help & Tutorials

Looking for step-by-step guides instead?

Visit our Help Centre for instant search, setup tutorials, and frequently asked household questions.

Explore Help Centre