Field sales · multi-tenant

Gümrah Saha

Gümrah Saha is a multi-tenant mobile app for field sales teams. A representative reviews the customer accounts they are authorised for, along with balances, account statements, and stock information, from the field. The app connects to the installation run by the business you work for, not to a central server.

iOS · Soon

Privacy Support

App details

The app is written in SwiftUI and carries no third-party dependency; it uses only Apple’s own frameworks (URLSession, Codable, Keychain). You connect with a firm code or a server address on launch, then sign in with a username and password. Which modules and screens appear is decided by the firm configuration returned by the server together with the user’s role: the same app opens with a different menu at every business.

Platform

iOS 26 and later (iPhone)

Use Case

Field sales: customer accounts, statements, and stock

Data Controller

The business you use the app with. The developer runs no central server and collects no user data.

Status

The iOS version is being prepared for App Store review and is not live yet. A download link will be added to this page once it ships. An Android version is being developed in parallel.

Key features

Connect with a firm code

Your firm code resolves to https://<firmcode>.gumrah.app/; if your installation lives at a different address, the server address is entered by hand. The connection is always over HTTPS.

Account list and search

The customer accounts you are authorised for, with balances, in one list — with search that ignores Turkish character and letter-case differences.

Account statement

A read-only ledger with an opening balance row, per-document grouping, and a running balance on every line. Direction and amounts are the server’s arithmetic; the screen only draws them.

Stock list

Product records with quantity and price, using the same search and list behaviour as the account list.

Menu shaped by the firm

The main menu is the intersection of three axes: the modules the business is licensed for, the screen configuration returned by the server, and the user’s role permissions.

No third-party dependency

The app bundles no ad network, analytics, or crash-reporting SDK; networking, formatting, and secure storage are all handled by the operating system’s own frameworks.

Privacy

Gümrah Saha contains no advertising, tracking, analytics, or crash reporting, and bundles no third-party SDK. It asks for no location, camera, microphone, contacts, photo, or calendar permission. Your username, password, session token, and firm connection key are held only in the device Keychain; they are not synced to iCloud and are excluded from device backups.