Personal Finance & Management · Windows · Beta

Your finances.
Actually
managed.

K-Id is a desktop management system — double-entry bookkeeping, budget analysis, recurring payments, asset depreciation, PDF reports, and an AI analyst, all in one app.

Local SQLite database. No cloud. No subscription. No one else has access to your data.

No credit card. No spam. Early bird price locked at $19.99.

✓ You're on the list. We'll be in touch.

K-Id Logo
Gestão Integrada
$19.99
Regular: $29.99 · One-time · Lifetime
Local database — your data stays on your machine
One-time payment, no subscription
Full double-entry bookkeeping
Windows desktop app
Screenshots

The full picture.
Nothing hidden.

These are real screenshots of the current beta. Left: the main interface with the Agenda panel open — categories, movements, transaction ledger, calculator, and thumbnail charts. Right: the Accounts panel with hierarchical account tree, budget vs actual chart, and the full consultation side panel.

Main UI — Agenda panel, movement matrix, transaction ledger, integrated calculator

Main UI — Agenda panel, movement matrix, transaction ledger, integrated calculator

Accounts consultation, Budget vs Actual chart, hierarchical account tree

Accounts consultation, Budget vs Actual chart, hierarchical account tree

Features

Built for people who
think in numbers.

K-Id is not a simplified budgeting app. It is a complete financial management system — built on proper double-entry principles, with the tools that actually matter for day-to-day financial control.

⚖️

Double-entry bookkeeping

Every transaction debits one account and credits another. Books always balance. Hierarchical accounts up to 3 levels deep with aggregated balances rolled up automatically.

🧮

Financial calculator

Enter expressions like 1200/4+50 inline. Price Formula (PMT) for loan instalments. Algebraic equation solver. Memory slots 01–99 and A–Z. Live GBP/EUR/USD conversion.

📊

Budget analysis & charts

Monthly evolution with intra-month projection. Budget vs Actual bar chart. Income/expense donut. Balance sheet gauge. Equity dynamic indicator. All visible as thumbnail previews.

📅

Agenda & recurring payments

Schedule monthly or annual payments. Set future-dated transactions today. Alarms with sound. Calendar view with event markers. K-Id confirms what needs to run every time you open it.

🏗️

Asset depreciation & inventory

Track fixed assets with linear or custom depreciation. Manage inventory. Automatic depreciation entries into your accounts. Full asset register with acquisition cost and current value.

🤖

AI Analyst & Utilities

Built-in AI financial analyst that reads your data and generates a narrative report of your financial position. Utilities panel for advanced operations and settings management.

📄

PDF, Print & Mail outputs

Generate PDF reports of any view — extracts, budget, balance sheet, results. Send directly to printer or email from within the app. No export, no copy-paste.

🎯

Ideographic movement matrix

Categories and movements defined as visual buttons — not dropdowns. One click selects the full debit/credit pair. Simple Mode for users who don't need to think about accounts at all.

⇄

Logical UI toggles

Use Mode / Create Mode toggles the interface between recording transactions and managing your account structure. Consult / Accounts gives instant balance lookup without leaving the main view.

💱

Live currency conversion

Convert GBP ↔ EUR ↔ USD inline using live exchange rates via frankfurter.app, before committing any transaction. Rate shown on screen.

🔒

Fully local & private

Your database is a single SQLite file on your machine. No account, no cloud, no sync. Automatic daily backups. You own your data — completely and permanently.

🌐

PT / EN toggle

Switch the entire interface between Portuguese and English at runtime — no restart required. Built for bilingual households and teams.

K-Id vs the rest

Not another
subscription app.

YNAB costs $109/year. Quicken $70/year. Monarch Money $100/year. They all need an internet connection, an account, and access to your financial data. K-Id does not.

K-Id

  • One-time payment, lifetime licence
  • Local database — your data stays on your machine
  • No internet required to use
  • Full double-entry bookkeeping
  • Asset depreciation & inventory
  • AI analyst built-in
  • PDF / print / email output
  • Integrated financial calculator with PMT
  • Fully customisable account hierarchy
  • Automatic daily backups, locally

YNAB / Monarch / Quicken

  • Monthly or annual subscription
  • Your data stored on their servers
  • Requires internet connection
  • Simplified single-entry model
  • No asset management
  • No built-in analyst
  • Basic export only
  • No financial calculator
  • Preset categories, limited customisation
  • Backups controlled by the vendor
Pricing

Pay once.
Own it forever.

No tiers. No feature gates. No "premium" plan. One licence, everything included, all future v1.x updates at no extra cost.

LIMITED
Early Bird
$19.99
One-time payment
  • Full K-Id licence
  • All v1.x updates included
  • Local database, no subscription
  • Priority beta access
  • Price locked — never increases
Join the waitlist →
Regular
$29.99
One-time payment · After launch
  • Full K-Id licence
  • All v1.x updates included
  • Local database, no subscription
  • Priority beta access
  • Early bird price lock
Join waitlist anyway
Roadmap

What's done.
What's next.

K-Id is built in public. This is the honest list — what exists, what is being built, and what will not happen in v1.

✓

Double-entry bookkeeping engine

Full debit/credit ledger, hierarchical accounts, aggregated balances.

✓

Financial calculator with PMT, algebra & currency

Inline expressions, loan instalments, equation solver, memory slots, live FX rates.

✓

Budget charts & analysis (5 chart types)

Monthly evolution, budget vs actual, donut, balance sheet gauge, equity dynamic indicator — all with thumbnail preview.

✓

Agenda, recurring payments & alarms

Monthly/annual scheduling, future-dated transactions, sound alarms, calendar with event markers.

✓

Asset depreciation & inventory

Fixed asset register, linear depreciation, automatic accounting entries.

✓

PDF / Print / Mail outputs

Generate reports of any view, send to printer or email directly from the app.

✓

AI Analyst & Utilities panel

Auto-generated narrative financial report. Utilities for advanced operations.

✓

Automatic daily backups

DB copied to backups/ on every launch. 7-day rolling history. Never blocks startup.

✓

PT / EN language toggle

Full interface translation at runtime, no restart required.

→

CSV import with configurable column mapping

Import bank exports. The biggest friction point for new users.

→

Account reconciliation

Match your ledger against bank statements.

·

Annual cash flow map (week by week)

Full-year view. Requires sufficient transaction history to be meaningful.

✗

Bank sync / Mobile app / Envelope budgeting

Not planned for v1. Bank sync is a maintenance trap for a solo developer. Mobile is a second full project.

K-Id is built by one person, for people who want to understand their money — not be managed by an app that understands it for them. It will never do everything. It will never have a roadmap driven by investors. It will never show you ads or sell your data.

If that trade-off works for you — welcome.

— Built in the evenings. Tested on real money.
5
Waitlist

Get early bird pricing.
Lock it in now.

K-Id launches when it's ready. Join the waitlist and get notified first — with the $19.99 early bird price guaranteed.

No credit card. No spam. Unsubscribe anytime.

✓ You're on the list. We'll be in touch.