Build your next Android inventory app without starting from zero.
A reusable offline-first source-code foundation built with Kotlin and Jetpack Compose. Start with stock movements, multi-location inventory, and transaction history—then adapt it to your project's workflows.
From USD 149 · One-time purchase · Full source code
Built for the work that comes before the real product work.
Inventory applications repeatedly need the same foundations: local persistence, stock movement rules, location-aware balances, scanning workflows, physical stock count, and operational history. Epicnesia Inventory Kit packages those foundations into a maintainable Android project so developers can focus on the parts that make their product or client implementation unique.
A practical inventory foundation.
Master data
- Product, Category, Unit, and Location management
Stock movements
- Receive / Stock In
- Issue / Stock Out
- Adjustment with reason and audit history
- Atomic stock transfer between locations
Visibility & history
- Inventory balance by product and location
- Append-only stock movement history
- Movement history and filtering
Operational workflow
- Barcode / QR scanner-first workflow
- Physical stock count with variance adjustments
Foundation & delivery
- Offline-first Room persistence
- Demo / sample data
- Tests and technical documentation
Designed around real inventory operations.
Offline-first
Core inventory workflows remain usable without requiring a production backend.
Barcode-first
Scanning can lead directly to product lookup and common inventory actions.
Multi-location inventory
Track balances and movement across warehouses, stores, vehicles, or other operational locations.
Physical stock count
Compare expected and counted quantities, review variance, and create auditable adjustment movements.
Stock needs history, not just a number.
- Stock-changing operations leave append-only movement history in the normal application flow.
- Receive, Issue, Adjustment, and Transfer update inventory consistently.
- Transfer decreases the source and increases the destination atomically.
- Negative stock is rejected for Issue and Transfer by default in V1.
- Physical stock count does not silently overwrite balance; variance creates an adjustment movement.
Verify it in the source
This instrumented test intentionally transfers stock to a missing destination. The transfer fails, the source balance remains unchanged, and no transfer movements are persisted.
val result = inventoryRepository.transfer(productId, locationId, "missing-location", quantity = 2_000L, note = null)
assertEquals(TransferResult.Failed, result)
assertEquals(5_000L, database.inventoryBalanceDao().getBalance(productId, locationId)?.quantity)
assertNull(database.inventoryBalanceDao().getBalance(productId, "missing-location"))
assertNoTransferMovementsExist()Documentation:Quick StartArchitectureTesting Strategy
Built for modern native Android development.
UI
- Kotlin
- Jetpack Compose
- Material 3
Architecture
- MVVM + Repository
- Hilt
Data & async
- Room
- Coroutines + Flow / StateFlow
Scanning
- CameraX + ML Kit
Built for developers who need to ship inventory products.
Android developers
Start from an inventory-specific foundation instead of assembling common infrastructure repeatedly.
Freelancers
Reduce setup time when delivering inventory applications under client deadlines.
Software houses & agencies
Use a maintainable foundation that can be adapted across custom inventory projects.
Technical founders & indie developers
Prototype a serious inventory product before a full backend or SaaS platform is required.
Focused by design.
Epicnesia Inventory Kit V1 is not:
- a POS / checkout system
- an ERP or accounting platform
- a payment solution
- a supplier / purchase-order system
- a production backend
- a multi-tenant SaaS platform
Epicnesia Inventory Kit ships the inventory foundation first instead of trying to become every business system at once.
Built to be understood, not just downloaded.
The V1 package includes:
- Android source code
- demo / sample data
- Getting Started documentation
- architecture and project structure guide
- local data / inventory model documentation
- build and release guide
- testing / QA notes
- customization guidance
- release notes
- demo APK
Before you buy.
- Android
- 7.0 (API 24) or newer
- SDK
- Compile 37.1 · Target 36
- Kotlin
- 2.2.10
- Compose
- BOM 2026.02.01
- Build
- Current stable Android Studio · JDK 17+
From the project build configuration.Full requirements
Does it include a backend or cloud sync?
No. V1 is offline-first, with Room as the local source of truth. It includes no backend and no remote synchronization layer.
Can I use it for a client project?
Yes, within your license. Single Project covers one End Product, which may be for you or for one Client. Unlimited Project covers unlimited End Products, including for Clients, under one Licensee. Commercial License Agreement
Can I customize the architecture and UI?
Yes. The license lets you modify Inventory Kit for your covered End Products, and the documentation includes customization guides. You may not resell or publicly redistribute it as reusable source code.
Are updates and support included?
Your purchase includes all V1.x releases and 12 months of support from the purchase date. A future major version is not automatically included. After support ends, you can keep using the versions you received while your license remains in force. Support
How is the source code delivered?
After your purchase is confirmed, you receive access to a versioned source-code release package. Epicnesia's private development repository is not the delivery channel. Purchase & Refund Terms
Choose your license.
Epicnesia Inventory Kit is a one-time purchase. Both licenses include the same source-code package; they differ in how many End Products you may build.
Single Project
USD 149 one-time
For one End Product
- Use Inventory Kit for exactly one End Product.
- That End Product may be for you or for one Client.
- Employees and Contractors may work on that End Product.
- A second End Product requires another license.
Unlimited Project
USD 599 one-time
For unlimited End Products under one Licensee
- Build an unlimited number of End Products, including for Clients.
- No seat limit for Employees or Contractors within the license scope.
- One Licensee only; the license cannot be split or shared.
- One-time purchase. No subscription.
- Includes all Inventory Kit V1.x releases you are entitled to.
- 12 months of support from your purchase date.
- Private source-code delivery after your purchase is confirmed.
You may request a refund within 14 days of purchase. Refund requests are reviewed under our Purchase & Refund Terms.
You will review and accept the license terms before checkout. Payment is completed securely on our checkout provider.
Commercial License AgreementPurchase & Refund TermsSupportsupport@epicnesia.id
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