Offline POS Software for
Bookstores & Restaurants

Selgorithm is a professional offline POS for bookstores and retail businesses. No internet. No subscription. No cloud. One payment — yours forever.

14 Languages
13 Visual Themes
20+ Currencies
165 Days Tested
Selgorithm Hakkında

Çevrimdışı Perakende POS Yazılımı — İnternet Yok, Abonelik Yok, Bulut Yok

Selgorithm, perakende işletmeleri için geliştirilmiş çevrimdışı öncelikli satış noktası (POS) yazılım ekosistemidir. Amiral gemisi ürün Selgorithm Kitabevi POS; kitabevleri ve perakende mağazalar için internet bağlantısı gerektirmeden Windows 10 ve Windows 11 üzerinde çalışan profesyonel bir kasa programıdır. USB ve Bluetooth barkod okuyucu desteği, anlık stok takibi, müşteri cari hesabı, tedarikçi cari defteri, günlük ve aylık kar raporu, personel maaş yönetimi ve termal fiş yazdırma özelliklerini tek çatı altında sunar; tüm veriler cihazınızda SQLite veritabanında yerel olarak saklanır. İkinci ürün Selgorithm Restaurant POS ise masa planı, mutfak ekranı ve çoklu ödeme desteğiyle aynı çevrimdışı mimariyi restoran işletmelerine taşır. Her iki ürün de Microsoft Store üzerinden tek seferlik ömür boyu lisans olarak sunulur — aylık abonelik yok, bulut hesabı gerekmez.

Arayüz Dili
14
Görsel Tema
13
Para Birimi
20+
Canlı Test
165 gün
Aylık Ücret
Yok
İnternet
Hiç
Ödeme
Tek seferlik
Dağıtım
MS Store
Screenshots

Real app, real interface

Screenshots taken directly from the live Selgorithm application — no mockups.

Selgorithm Main POS Interface
Main POS Interface
Selgorithm Finance & Personnel
Finance & Personnel
Selgorithm Settings Panel
Settings Panel
Selgorithm Product Search
Product Search
Selgorithm Data Management
Data Management
Selgorithm Warehouse Exit List
Warehouse Exit List
Core Features

The DNA of sales. Rewritten.

From barcode to profit report, from supplier to payroll — every tool your store needs, built in, offline, and yours forever.

Barcode Scanning

USB or Bluetooth barcode scanner support. Products are instantly retrieved from the local database. Press F4 to focus the barcode field at any time.

Smart Cart Management

Inline editing of quantity, discount, and unit price fields. Click any cell or navigate with Ctrl+↑/↓. Right-click context menu included.

Flexible Payment Options

Three payment methods: Cash (F8), Card (F9), and Credit (F6). Important: F9 logs the sale as "card payment" for reporting purposes only — there is no POS terminal or card reader synchronisation built in. Credit sales automatically create a debt entry in the customer account.

Customer & Account Ledger

Digital account ledger per customer. Credit sales, payments, and balances tracked in real time. Loyalty card and points system built-in.

Profit Reports

Daily, weekly, monthly, and annual profit summaries. Each row: Period · Qty · Revenue · Cost · Profit · Margin%. Real-time profitability without an accountant.

Finance & Personnel Module

Staff management, work-hour tracking, payroll history, expense recording, and daily financial summary — on one screen. Excel export supported.

Warehouse Exit List Beta

Printable PDF output with date range and product type filters. Directly from sales data, type-filtered picking list. No manual preparation.

Order Hold (F7)

Save a partially completed cart to the hold queue while serving another customer. Held orders are listed in the right panel, restored with one click. Designed for those who know the value of every second.

Per-User Theme & Language

Each staff member independently selects their preferred visual theme and interface language. Preferences are saved per account and applied automatically on every login.

Barcode Label Printing

Built-in label designer for generating custom barcodes. Ideal for bundled book sets, products whose original barcode conflicts with another item in the system, or promotional packages that need a new unified barcode. Choose size, quantity, and layout, then print directly to a connected printer.

Thermal Receipt Printing

Native Windows print API — no third-party driver, no middleware. Configure your printer name in settings and every completed sale automatically prints a formatted receipt. Supports any Windows-compatible thermal or laser printer.

⚠️ Note: Printed thermal receipts are for informational purposes only and do not constitute an official legal document.

Low Stock Alerts

After every sale, Selgorithm instantly checks stock levels against your configured threshold. A clear, non-intrusive alert lists every item running low — so you reorder before you run out, not after.

Sale Correction & Cancellation

Admin-only tool to correct or cancel past sales. When cancelled, the sale is moved from the active sales log into a dedicated archive — stock is automatically restored and revenue corrected. Archive records are retained for the number of days you set in Settings (cancellation window); older records are cleaned up automatically.

Supplier Account Ledger

Track every supplier's balance, purchases, and payments in a dedicated ledger. Add debit/credit entries, filter by supplier or date, and always know exactly what you owe and to whom.

Product Cover Images

Upload a cover photo for any product — useful for visual inventory management and quick identification at checkout. Images are stored locally in the database alongside product data.

Pricing

One price. Yours forever.

No subscriptions. No monthly fees. No hidden charges. Pay once — use for life.

⚠️ The $89 launch price is valid only until 31 August 2026. After that date, the price permanently increases to $149.99. No coupon codes, no exceptions.

Why Selgorithm

Built for real retail

Every design decision keeps speed, ownership, and reliability front and center.

✔ Tested live in real bookstores for 165 days before release.
Data Ownership

Your data never leaves your device

All data is stored locally in an encrypted SQLite database at %LOCALAPPDATA%\Selgorithm_Web\. Session keys are auto-generated on first launch; no data is ever transmitted to external servers.

  • No subscription fee — ever
  • No cloud dependency or service outage risk
  • Full ownership of sales history, customer data, and inventory
  • Works in isolated or offline network environments
Speed & Efficiency

Max 2 seconds per product sale

Keyboard-first design eliminates mouse use at checkout during peak hours. Barcode scanning, payment shortcuts, cart navigation, and order hold — all accessible without lifting your hands from the keyboard.

  • F4 — instantly focus barcode field
  • F8 / F9 / F6 — single-key payment
  • F7 — hold order without data loss
  • Ctrl+↑/↓ — navigate cart rows keyboard-only
Profit Visibility

Real-time profitability without an accountant

The built-in Profit Report compares selling prices against purchase costs, delivering profit data across four time scales.

  • Daily, Weekly, Monthly, Yearly summaries
  • Per row: Qty · Revenue · Cost · Profit · Margin%
  • Formula: Profit = Revenue − (Qty × Label Price × (1 − Purchase Disc.%))
  • Sales data export to Excel for external analysis

⚠️ Selgorithm is a retail operations tool designed to save you time and streamline your workflow — not an accounting or financial software. Reports are for internal operational reference only and carry no official or legal standing. The software and its developers cannot be held liable for financial or accounting decisions based on this data.

Keyboard Shortcuts

Keyboard is at the heart of the design

Every critical operation has a key. No need to reach for the mouse during peak hours.

F1 Open keyboard shortcuts reference
F2 Edit selected product (cart row must be selected)
F3 Open product search by name
F4 Focus barcode input field (select all)
F5 Refresh page
F6 Process credit sale
F7 Hold current order
F8 Process cash sale
F9 Process card payment
F11 Toggle fullscreen mode
Ctrl+↓ Move to next cart row
Ctrl+↑ Move to previous cart row
Enter Confirm barcode / save cell edit
Escape Cancel inline edit / close modal
↑ / ↓ Navigate within editable cell
Desteklenen Diller

14 Dil  ·  13 Tema  ·  20+ Para Birimi

Her kullanıcı hesabı kendi dil ve görsel tema tercihini bağımsız olarak saklar. Değişiklikler girişte anında uygulanır — yönetici müdahalesi gerekmez.

🇹🇷 Türkçe🇬🇧 English🇩🇪 Deutsch🇫🇷 Français🇪🇸 Español🇿🇦 Afrikaans🇷🇺 Русский🇸🇦 العربية🇧🇷 Português🇮🇹 Italiano🇨🇳 中文🇮🇩 Bahasa Indonesia🇮🇳 हिन्दी🇯🇵 日本語

ℹ️ Para birimi değişikliği yalnızca ekranda ve raporlarda görünen sembolü günceller — kur dönüşümü yapılmaz.

Technical Specifications

Lightweight. Reliable. Portable.

No bloated dependencies. No external connections at runtime. Just Python, pywebview, and SQLite.

Runtime
Python 3.11 · pywebview
Database
SQLite — single portable .db
Interface
WebView2 (Windows built-in)
Distribution
Microsoft Store (MSIX)
Min. OS
Windows 10 64-bit
Internet
Never required
Multi-device
Possible over LAN
Languages
14 interface languages
Visual Themes
13 options (per-user)
Backup
.db export or copy Selgorithm_Web/
Security & Backup

Secure by architecture

Zero external data transmission. Audit-safe corrections. Role-based access control.

Encrypted Local Storage

All data is stored in an encrypted SQLite database on your Windows device. Session keys are auto-generated on first launch and never leave the machine.

Role-Based Access Control

Admin — full access including reports, cancellations, user management, and configuration.
Staff — sales, cart, hold, and customer selection only. Sensitive features are completely hidden.

Audit-Safe Cancellations

Cancelled sales are moved from active records into a separate archive log — stock is automatically restored and revenue corrected. Archive records are retained for the period defined in Settings (cancellation window); after that, records are cleaned up automatically.

Easy Backup Strategy

Daily: use Data → Backup to create a .db backup. Weekly: copy the Selgorithm_Web folder to an external drive or cloud storage. Single-step restore.

Video Tutorials

See Selgorithm in action

Step-by-step video guides to get you up and running quickly.

Video coming soon

Add via Customizer → Videos

Getting Started — First Launch

Video coming soon

Add via Customizer → Videos

Making Your First Sale

Video coming soon

Add via Customizer → Videos

Customer Accounts & Loyalty

Video coming soon

Add via Customizer → Videos

Profit Reports Explained

Video coming soon

Add via Customizer → Videos

Finance & Personnel Module

Video coming soon

Add via Customizer → Videos

Data Import, Export & Backup

Launch price of $89 ends 31 Aug 2026 — then permanently $149.99

Redefine the DNA
of your business.

30 days free. Then $89 — once. No subscription. No cloud. No monthly bills. Just your store, running perfectly.

100% Original — MS Store Verified
Tested 165 days in real bookstores
30-day free trial, no card needed
Product Roadmap

One engine. Many verticals.

Selgorithm is expanding beyond bookstores. Here is where we are heading — and when.

Bookstore POS Nov 2025 ✔ Live
Restaurant POS Jun 2026 ✔ Live
Market / Grocery POS Q3 2026 ⚡ Now
Café POS Q4 2026
Jewellery POS Q2 2027
Medical / Pharmacy POS Q3 2027
Perfumery POS Q4 2027
Tourism / Ticket POS Q2 2028
PC / Electronics Service POS Q4 2028

Dates are indicative. Roadmap subject to change based on user feedback.