RMDB vs Katana: Manufacturing Software Comparison (2026)

RMDB vs Katana is a comparison that comes up among small manufacturers evaluating their first manufacturing software. Katana is a modern, cloud-based manufacturing ERP popular with D2C brands and small makers. RMDB is a dedicated finite capacity scheduling system built over 35+ years for job shops and make-to-order manufacturers. They solve different problems, and understanding which problem you actually have is the key to choosing correctly.

For the full scheduling software landscape, see our production scheduling software comparison guide.

Company Background

Katana

Katana Cloud Inventory was founded in 2017 in Estonia (same origin as MRPeasy). The company has focused on making manufacturing ERP accessible to small manufacturers, particularly those selling direct-to-consumer through e-commerce platforms. Katana's modern interface, Shopify/WooCommerce integrations, and startup-friendly branding have resonated with makers, craft manufacturers, and small-batch producers. The platform covers inventory management, production planning, sales orders, purchasing, and shop floor control.

RMDB by User Solutions

RMDB is developed by User Solutions, founded in 1991. With over 35 years in manufacturing scheduling, RMDB serves manufacturers in aerospace, defense, automotive, electronics, heavy equipment, and precision machining. The software focuses exclusively on finite capacity scheduling and works as a scheduling add-on to any ERP system.

Feature Comparison

Different Tools for Different Problems

The most important thing to understand about RMDB and Katana is that they solve different problems.

Katana Solves: "I Need a Manufacturing ERP"

If your shop has outgrown spreadsheets for inventory tracking, order management, and basic production planning, Katana provides a clean, modern platform that handles these functions well. It is particularly strong for:

• D2C/e-commerce manufacturers who sell through Shopify or WooCommerce and need inventory synced with online orders
• Small batch producers making consumer products with relatively simple production workflows
• Manufacturers new to software who want an intuitive, modern interface without enterprise complexity

Katana's scheduling is adequate for linear production flows — first come first served, basic priority adjustments, capacity checks against available hours. For many small producers, this level of planning is sufficient.

RMDB Solves: "I Need Better Scheduling"

If your shop's primary problem is scheduling — missed due dates, bottleneck confusion, constant firefighting, inability to answer "when will this ship?" — RMDB addresses the root cause with a depth that Katana's built-in planning cannot match. RMDB excels for:

• Job shops with high-mix, low-volume production where every job has different routings
• Manufacturers with bottleneck work centers that create cascading delays
• Operations requiring what-if analysis to evaluate schedule changes before committing
• Shops with sequence-dependent setups where job order on a machine significantly affects throughput
• Manufacturers needing to add scheduling to an existing ERP without replacing it

Scheduling Depth: The Core Difference

Katana Production Planning

Katana provides production planning that is a step up from spreadsheets:

• Create manufacturing orders from sales orders
• See material availability and allocate inventory
• Track production tasks and operator assignments
• Visualize production timeline with basic capacity checks
• Prioritize orders with drag-and-drop on the task list

This works well when production is relatively straightforward — a few work centers, predictable routings, moderate order volumes. Where Katana struggles is when scheduling problems get genuinely complex.

RMDB Finite Capacity Scheduling

RMDB handles the complexity that breaks simpler tools:

• Simultaneous constraint resolution across machines, labor, tooling, and materials
• EDGEBI Gantt charts that show every operation on every resource with drag-and-drop rescheduling
• What-if scenarios — "What happens if we take this rush order? Which jobs get pushed?"
• Sequence-dependent setup optimization that minimizes changeover time
• Forward and backward scheduling logic
• Automatic identification of bottleneck work centers

The difference becomes critical as shops grow. A 10-person shop making candles might never need RMDB. A 40-person job shop machining aerospace parts with 300 active orders across 20 machines will hit Katana's scheduling limits quickly.

Pricing Comparison

Katana Pricing

• Essential: $179/month (1 user) — basic manufacturing ERP
• Advanced: $399/month (up to 5 users) — adds shop floor control, batch tracking
• Professional: $999/month (up to 25 users) — adds advanced analytics, custom workflows
• Enterprise: Custom pricing

Over 5 years, Katana costs range from $10,740 (Essential) to $59,940+ (Professional).

RMDB Pricing

• One-time license: $5,000-$15,000
• Optional annual maintenance: ~$1,000-$2,000
• 5-year total: $9,000-$23,000

5-Year Comparison

At the Essential tier, costs are comparable. At higher Katana tiers, RMDB's one-time model becomes significantly more economical — while delivering deeper scheduling.

When Katana Is the Better Choice

Katana makes sense when:

• You need a full manufacturing ERP, not just scheduling. If you have no ERP and need inventory, orders, purchasing, and basic production planning in one tool, Katana covers that ground.
• You sell through e-commerce. Katana's Shopify and WooCommerce integrations are a genuine differentiator for D2C brands.
• Your production is simple. Linear workflows, limited work centers, predictable routings — Katana's planning handles this well.
• You prefer cloud access. Browser-based, accessible anywhere, no IT infrastructure needed.
• You want modern UX. Katana's interface is one of the best-designed in the manufacturing software space.

When RMDB Is the Better Choice

RMDB is the stronger fit when:

• Your scheduling problems are costing you money. Late deliveries, lost customers, excessive overtime, bottleneck chaos — RMDB addresses these with finite capacity intelligence.
• You already have an ERP. RMDB adds scheduling power to whatever ERP you already run — Katana, Epicor, SAP, JobBOSS, or any other.
• Your production is complex. High-mix job shop environments, multi-constraint scheduling, and what-if analysis are where RMDB delivers value that Katana cannot.
• You want to own your software. One-time license, no recurring fees, no vendor lock-in.
• You need scheduling expertise. User Solutions' 5-day implementation includes 35+ years of scheduling methodology, not just software training.

Can You Use Both?

Yes. Some manufacturers use Katana for ERP functions (inventory, orders, purchasing) and RMDB for scheduling. This gives you Katana's modern ERP with RMDB's scheduling depth. The integration requires data exchange setup but is entirely feasible.

The Bottom Line

Katana is a well-designed manufacturing ERP for small producers who need an all-in-one system with strong e-commerce integration. Its scheduling features work for simple production environments.

RMDB is a dedicated scheduling powerhouse for manufacturers where production scheduling is the critical operational challenge. It delivers the finite capacity scheduling, visual planning, and constraint management that complex manufacturing operations require.

Choose Katana if you need a manufacturing ERP. Choose RMDB if you need to fix scheduling.

Frequently Asked Questions

See What Real Scheduling Looks Like

If scheduling is your problem — not inventory management, not order tracking — see what a dedicated APS does with your data. Contact User Solutions for a demo using your actual jobs, routings, and constraints. Request a demo today.