DontGuess vs ReplenOS
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of May 13, 2026 for DontGuess, Oct 13, 2026 for ReplenOS.
The short answer
- ReplenOS lists 7 features DontGuess’s listing doesn’t mention, including Auto-restock, Inventory tracking, Low stock alerts.
Head to head
Enterprise
- · 30-day free trial
- · All other features plus
- · Dedicated Onboarding and Training
- · Dedicated Support
- · For stores with $5M+ Annual Revenue
- · Periodic account reviews
Starter
- · AI-driven Insights, Alerts and KPIs
- · AI-powered Demand Forecasting
- · Automated Purchase Orders to Suppliers
- · Automated Replenishment Supply Plans
- · For stores up to $500K in Annual Revenue
- · Set Inventory Budget per Order Cycle
Growth
- · AI-driven Insights, Alerts and KPIs
- · AI-powered Demand Forecasting
- · Automated Purchase Orders to Suppliers
- · Automated Replenishment Supply Plans
- · For stores $500k to $2M Annual Revenue
- · Set Inventory Budget per Order Cycle
Premium
- · AI-driven Insights, Alerts and KPIs
- · AI-powered Demand Forecasting
- · Automated Purchase Orders to Suppliers
- · Automated Replenishment Supply Plans
- · For stores $2M to $5M Annual Revenue
- · Set Inventory Budget per Order Cycle
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureLaunching a new product with zero sales history? DontGuess finds similar products in your existing Shopify catalog, combines them with your pre-launch signals like waitlist size and conversion rate, and generates a size-by-color buy plan you can defend. Every recommendation shows the comps used, the math behind it, and how constraints like MOQ and pack multiples were applied.
ReplenOS is the inventory analyst you always wanted by your side. Connect your Shopify store in minutes and get AI-powered demand forecasts, optimized reorder quantities, and a clear replenishment schedule that tells you exactly what to order, when, and how much. Create and send purchase orders to suppliers. Set an inventory budget and ReplenOS ranks must-order vs. can-defer — so you never over-commit cash.
- Find similar products in your catalog to estimate demand for new launches
- Get a size-by-color buy grid with evidence behind every number
- Apply MOQ and pack multiple constraints with clear explanations
- Edit any cell in the final plan, then export a clean CSV for your PO
- AI demand forecasting that auto-selects an accurate model for every SKU
- AI Analytics and Reorder quantities that balance in-stock protection vs. cash
- Must Order By Date factoring lead time, safety stock, and velocity
- Inventory budgeting: set a budget, see "must-order" vs. "can-defer" ranked POs
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  DontGuess |  ReplenOS |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | DontGuess | ReplenOS |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 1 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
DontGuess and ReplenOS: common questions
- What features does each app list that the other doesn’t?
- DontGuess lists 5 the others don’t mention, such as Auto-processing, Backorders, Pre-orders, SKUs. ReplenOS lists 7 the others don’t mention, such as Auto-restock, Inventory tracking, Low stock alerts, Out of stock notifications. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of May 13, 2026 for DontGuess, Oct 13, 2026 for ReplenOS; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of May 13, 2026 for DontGuess, Oct 13, 2026 for ReplenOS. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.