Global i18n Architecture
- Full Turkish and English support across the entire interface, onboarding, reports, and customer-account modules.
- The app automatically detects the operating-system language, and users can change it any time in settings.
Track your inventory, customer accounts, and sales in one place. Stay in control of your business with desktop and mobile access.
1,000+
Active Businesses
99.9%
Data Security
3 Minutes
Quick Setup
100%
Cloud Sync
Release notes for Sentinel Biz v1.0.24
Explore the key features of Sentinel Biz inventory and account tracking
A practical barcode-enabled checkout that keeps customers moving.
Track credit accounts, customer balances, and detailed statements in one click.
Your shop computer and phone stay synchronized with live data.
Add product photos and spot items running low at a glance.
See your shop's net profitability by day, week, or month.
Review cash and card sales for the day in one click.
Easily manage wholesale purchases and amounts owed to suppliers.
See when each product arrived and when it was sold.
Your data is backed up to the cloud automatically, even if your computer fails.
Our support team can connect remotely and complete setup in minutes.
Get new features and updates as soon as they are released, at no extra cost.
No complicated menus—anyone can get started in just five minutes.
Real screens from the app. Every screen is designed to help you finish daily tasks with fewer clicks.

Fast Sales & Checkout
Barcode sales, payment methods, and receipt checkout
Experiences from businesses across different industries
“No more long register queues during rush hours. Our previous software kept freezing. Since switching to Sentinel Biz, checkout speed has doubled, and I can track daily profits effortlessly.”
Alex J.
Owner at Apex Delicatessen & Market — Chicago, USA
“Sentinel Biz transformed our boutique. The live multi-currency converter handles exchange rates seamlessly for international customers. Lightweight, fast, and works flawlessly offline!”
Marcus Vance
Owner at Vance & Co. Boutique — London, UK
“We were tired of paying expensive monthly software subscriptions. Switched to Sentinel Biz, imported our inventory in minutes, and haven't faced a single issue since.”
David B.
Owner at Metro Auto Parts — Berlin, Germany
Yes. You can download and use the core features of Sentinel Biz for free.
The program is fully compatible with 64-bit Windows 10 and Windows 11.
Your data is stored securely in the cloud and is available from the desktop app on your devices.
Try it for free today. Create your shop after installation and start selling.
Windows 10 / 11 · Android