Nauta vs RELEX Solutions: Which Retail Planning Software Fits Your Operation?

Nauta and RELEX Solutions solve different problems. RELEX is a retail and supply chain planning suite: it forecasts demand, plans replenishment, and recommends what to order across stores and distribution centers. Nauta is an operational brain: it unifies live data from ERP, TMS, WMS, emails, and PDFs, then deploys AI agents that execute on exceptions across supply chains. If your gap is planning accuracy in retail, RELEX is a strong fit. If your gap is what happens after the plan, when containers slip, suppliers miss, and margin leaks, Nauta closes it.

What is Nauta?

Nauta is the operational brain powering your supply chain agents. It connects fragmented operational data into a single AI-native data layer, then puts purpose-built agents to work on it: predicting stockouts 5 to 14 days out, chasing suppliers, resolving document exceptions, and catching freight anomalies before they hit the P&L. Agents act. Humans decide. A food and beverage distributor lifted fill rate from 74% to 90% and held it there.

What is RELEX Solutions?

Founded in Helsinki in 2005, RELEX Solutions serves 600+ retailers, wholesalers, and manufacturers with a unified planning suite covering demand forecasting, replenishment, inventory, merchandising, pricing, promotions, and workforce planning. It has been named a Leader in the Nucleus Research Enterprise Supply Chain Planning Value Matrix and has expanded into manufacturing planning, supporting nearly 140 manufacturers. In 2026 RELEX added agentic AI capabilities and its Rebot assistant on top of the planning core.

RELEX's center of gravity is the plan. Its strongest results come from forecast accuracy, waste reduction, and automated replenishment in grocery and retail environments with dense point-of-sale data.

The core difference: a plan is not an operation

RELEX answers the question every planner asks: what should we buy, where, and when. Nauta answers the question every operator lives with: the plan just broke, now what. A forecast does not call the supplier when the PO slips. A replenishment recommendation does not clear the container stuck at port or dispute the demurrage invoice. Planning tools stop at the recommendation. Nauta's agents carry the chain to execution: order placed, container cleared, margin protected.

There is also a data difference. RELEX runs on structured transactional data. Nauta was built for the reality of import-heavy operations, where the truth lives in emails, PDFs, supplier portals, and spreadsheets. The brain ingests unstructured data automatically and learns from every action the agents take, so the core gets harder to copy over time.

Nauta vs. RELEX: side by side

Nauta RELEX Solutions
Category System of Action: autonomous execution Planning suite: forecasting and recommendations
Core buyer Import-heavy distributors, manufacturers, CPG operators Retailers, grocers, wholesalers with dense POS data
Data handled Structured + unstructured (emails, PDFs, portals) Primarily structured transactional data
AI role Purpose-built agents that execute on exceptions Forecasting models plus assistive agentic features
End of chain Execution: order placed, container cleared Recommendation: plan handed to humans
Time to value Integrations in under 20 IT hours Enterprise planning implementations, typically months

Who should choose which

Choose Nauta if you run inbound supply chains where the daily fight is suppliers, containers, documents, and landed cost, and where you need action taken, not another recommendation queue. Choose RELEX if you are a retailer or grocer whose main lever is forecast-driven replenishment across hundreds of stores. Many operations run both: RELEX plans, Nauta executes.

Alternatives to RELEX Solutions worth evaluating

o9 Solutions fits large enterprises that need integrated business planning and S&OP across demand, supply, and finance, beyond retail replenishment.

Kinaxis is the option for concurrent planning and scenario modeling when fast replanning across a complex network matters more than retail-specific features.

Aera Technology suits teams that want decision intelligence recommendations over existing data rather than a full planning suite.

Nauta fits when the problem is what happens after the plan: containers slipping, suppliers missing, margin leaking. It unifies live data and runs agents that execute on those exceptions across the operation.

The bottom line

RELEX tells you what to plan. Nauta runs what happens next. If your losses come from execution, missed POs, stuck containers, invoice leakage, the operational brain is the layer you are missing. See how the operational brain runs supply chains at getnauta.com. Book a walkthrough with your own lanes and SKUs, not a generic demo.

Frequently Asked Questions

What are the best alternatives to RELEX Solutions?

The main alternatives to RELEX Solutions are o9 Solutions, Kinaxis, and Aera Technology, along with Nauta. o9 and Kinaxis handle broad supply chain planning and scenario modeling, while Aera focuses on decision intelligence. Nauta is different in kind: it unifies your live data and runs agents that execute on exceptions, rather than producing a plan for people to act on.

How is Nauta different from RELEX Solutions?

RELEX Solutions is a retail and supply chain planning suite focused on demand forecasting, replenishment, and inventory. Nauta is the operational brain for supply chains: it unifies ERP, TMS, WMS, emails, and PDFs into one AI-native data layer and deploys agents that act on exceptions before they cost fill rate or margin. RELEX plans what to order; Nauta runs what happens after the plan.

Who are RELEX Solutions' main competitors?

RELEX Solutions competes most directly with o9 Solutions, Kinaxis, and Aera Technology in enterprise planning and decision intelligence. Operators evaluating these tools also consider Nauta when the gap is execution on live exceptions rather than forecast accuracy.