battles / ERP & Inventory
Erply vs StockIQ
Erply ($450/mo/mo, vibe code 3/10) vs StockIQ ($2,500/mo/mo, vibe code 2/10). Erply is the easier one to rebuild yourself — here is what you lose either way.
ERP & Inventory
$450/mo/mo
- MVP
- 2 months
- Full replacement
- 12-24 months, due to hardware device drivers, offline sync queues, and multi-location accounting edge cases.
easier to rebuild
get the build prompt →ERP & Inventory
$2,500/mo/mo
- MVP
- 2 weeks
- Full replacement
- 9-12 months, due to complex statistical forecasting models, edge-case math, and ERP integration stability.
price gap / year
$24,600/mo
running both / year
$35,400/mo
our call
Start with Erply — highest vibe code, weakest moat.
Erply
Erply controls the operational plumbing of retail: physical receipt printers, payment terminal bridges, offline sync queues, and matrix item variants. Building a basic web inventory list with AI is easy, but maintaining network-resilient register hardware integrations and complex FIFO inventory ledgers across physical locations is not feasible with prompt-generated software.
you can rebuild
- Product catalog management and matrix variant definitions
- Customer records and simple loyalty points tracking
- Basic manual stock adjustments and intra-warehouse transfer orders
- Web-based register UI for touch-screen product selection
- Standard sales dashboard reporting and inventory valuation metrics
what you lose
- Native local hardware wrappers for receipt printers, cash drawers, and barcode scanners
- Offline-first POS register state engine using local browser storage and sync queues
- EMV credit card reader direct integrations (Ingenico, Verifone, PAX)
- Fiscal memory cash register compliance modules for strict European tax jurisdictions
- Automated purchase order generation based on historic reorder points
real moats
- Hardware integration layer abstracting physical payment terminals and peripherals
- Operational switching costs associated with retraining retail floor staff across multiple locations
- Localized retail fiscal tax compliance and audit-trail engines
open source escape hatches
- ERPNext GPL-3.0
- Odoo Community LGPL-3.0
- Apache OFBiz Apache-2.0
StockIQ
StockIQ is far beyond a simple reorder alert dashboard; it handles multi-echelon statistical forecasting, vendor lead-time variance, container load optimization, and deep enterprise ERP sync. While basic moving-average reorder scripts are quick to build with AI, replicating StockIQ's full mathematical rigor and operational edge cases for high-volume distributors requires serious domain engineering.
you can rebuild
- Basic reorder point notifications based on static stock thresholds
- Simple moving average historical demand forecasting
- Purchase order PDF generation and supplier email triggers
- Vendor record keeping and manual lead time logging
- Basic SKU-level velocity and inventory health dashboards
what you lose
- Advanced statistical forecasting engines (Holt-Winters, Croston's method)
- Multi-echelon inventory allocation across regional distribution hubs
- 3D container load optimization and cubic fill calculations
- Native bi-directional lock-safe ERP synchronization
- Supplier performance scoring and automated lead-time variance tracking
real moats
- Deep bidirectional sync capabilities with legacy and enterprise ERPs
- Proprietary supply chain algorithms for multi-echelon replenishment planning
- Extremely high operational switching costs once implemented across distribution centers
open source escape hatches
- ERPNext GPL-3.0
- InvenTree MIT
- Apache OFBiz Apache-2.0
Questions people ask
Which is easier to rebuild with AI, Erply or StockIQ?
Erply. It scores 3/10 on vibe code with a moat of 4/10, so an AI-assisted MVP takes about 2 months and a full replacement about 12-24 months, due to hardware device drivers, offline sync queues, and multi-location accounting edge cases..
Which one costs less, Erply or StockIQ?
Erply at $450/mo/mo for a typical mid-market store. The gap between the two is about $24,600/mo a year.
What do I lose if I replace Erply?
Native local hardware wrappers for receipt printers, cash drawers, and barcode scanners Offline-first POS register state engine using local browser storage and sync queues EMV credit card reader direct integrations (Ingenico, Verifone, PAX)
What do I lose if I replace StockIQ?
Advanced statistical forecasting engines (Holt-Winters, Croston's method) Multi-echelon inventory allocation across regional distribution hubs 3D container load optimization and cubic fill calculations
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