Free Cin7 alternatives: 4 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

4 of the 7 Cin7 alternatives we track can be used for free (free, open source, or with a free plan). Zoho Inventory, ERPNext and Odoo Accounting rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	Zoho Inventory	Free plan + paid	—	No	Web, iOS, Android	4 of 4	68.8
2	ERPNext	Open source	—	Yes	Web, Self-hosted	4 of 4	52.6
3	Odoo Accounting	Free plan + paid	—	Yes	Web, iOS, Android +1	4 of 4	51.2
4	Katana	Free plan + paid	—	No	Web	6 of 6	42.3

1. Zoho InventoryTop pick
Best for: Small multichannel sellers who want stock synced with Amazon, Shopify and their accounting
Free plan + paidWeb, iOS, Android
68.8
score / 100
Why switch from Cin7
Much cheaper, with a free plan and marketplace syncing for smaller sellers.
Pros
Free plan for very small sellers
Syncs stock with Amazon, Etsy, Shopify and WooCommerce
Works closely with Zoho Books and also QuickBooks and Xero
Cons
Order caps on each plan push busy sellers to higher tiers
Serial, batch and barcode features need Premium or above
Limited manufacturing features compared with Cin7 or Katana
Visit Zoho Inventory Details and reviews
How this score is calculated
Editorial fit ×0.3100
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Zoho Inventory a good Cin7 alternative?
Verified facts
4 of 4 verified
Free plan
50 orders/month, 1 user
Checked Nov 8, 2026zoho.com(opens source in a new tab)
Marketplace sync
Amazon, Etsy
Checked Nov 8, 2026zoho.com(opens source in a new tab)
Accounting integrations
Zoho Books, Xero, QuickBooks Online
Checked Nov 8, 2026zoho.com(opens source in a new tab)
Shipping
UPS to 200 countries from inside the app
Checked Nov 8, 2026zoho.com(opens source in a new tab)
2. ERPNext
Best for: Small and mid-sized companies that want accounting tied to inventory and operations without licence fees
Open sourceSelf-hostableWeb, Self-hosted
52.6
score / 100
Why switch from Cin7
Open-source ERP covering stock and manufacturing without per-order pricing.
Pros
All modules free under GPL-3.0
Accounting shares one database with stock, sales and HR
Choice of self-hosting or managed Frappe Cloud
Cons
Overkill for freelancers and very small businesses
Implementation takes time or a partner
Fewer accountants know it than mainstream tools
Visit ERPNext Details and reviews
How this score is calculated
Editorial fit ×0.346
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is ERPNext a good Cin7 alternative?
Verified facts
4 of 4 verified
License
GPL-3.0
Checked Nov 8, 2026github.com(opens source in a new tab)
Price
Free and open source; you pay for hosting
Checked Nov 8, 2026frappe.io(opens source in a new tab)
Managed hosting
From $5/month
Checked Nov 8, 2026frappe.io(opens source in a new tab)
Current version
v16
Checked Nov 8, 2026frappe.io(opens source in a new tab)
3. Odoo Accounting
Best for: Growing businesses that want accounting inside one suite with inventory, sales and HR
Free plan + paidOpen sourceSelf-hostableWeb, iOS, Android, Self-hosted
51.2
score / 100
Why switch from Cin7
Odoo's modular suite adds inventory and manufacturing apps beside accounting.
Pros
Shares data with Odoo inventory, sales, CRM and HR
One app free on Odoo Online with unlimited users
Open-source Community edition can be self-hosted
Cons
Full Accounting features need the paid Enterprise edition
Setup and localisation often need a partner
More complex than a small business needs
Visit Odoo Accounting Details and reviews
How this score is calculated
Editorial fit ×0.341
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Odoo Accounting a good Cin7 alternative?
Verified facts
4 of 4 verified
Free plan
One app, unlimited users
Checked Nov 8, 2026odoo.com(opens source in a new tab)
Free trial
Yes, no credit card
Checked Nov 8, 2026odoo.com(opens source in a new tab)
Bank synchronization
Yes
Checked Nov 8, 2026odoo.com(opens source in a new tab)
Source code
Open-source apps
Checked Nov 8, 2026github.com(opens source in a new tab)
4. Katana
Best for: Small manufacturers and DTC makers who need BOMs, production planning and Shopify-synced stock
Free plan + paidWeb
42.3
score / 100
Why switch from Cin7
Built for makers, with multi-level BOMs, work orders and a free plan for small catalogs.
Pros
Free plan with every feature and unlimited users (30 SKUs)
Multi-level BOMs, work orders and a shop-floor app
Shopify, QuickBooks Online and Xero integrations
Open API plus an MCP server for AI assistants
Cons
Free plan caps you at 30 SKUs after the first 15 days
Paid plan is quote-only with no public price
Only Shopify connects on the free plan for e-commerce
Visit Katana Details and reviews
How this score is calculated
Editorial fit ×0.312
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Katana a good Cin7 alternative?
Verified facts
6 of 6 verified
Free plan
Yes, $0 for up to 30 SKUs
Checked Nov 8, 2026katanamrp.com(opens source in a new tab)
Users
Unlimited
Checked Nov 8, 2026katanamrp.com(opens source in a new tab)
API
Yes, plus MCP server
Checked Nov 8, 2026katanamrp.com(opens source in a new tab)
Paid plan
Advantage, custom pricing
Checked Nov 8, 2026katanamrp.com(opens source in a new tab)
Free plan price
$0, no card required
Checked Nov 8, 2026katanamrp.com(opens source in a new tab)
Advantage plan
Custom annual contract
Checked Nov 8, 2026katanamrp.com(opens source in a new tab)

Quick comparison

1. Zoho InventoryTop pick

Pros

Cons

Verified facts

2. ERPNext

Pros

Cons

Verified facts

3. Odoo Accounting

Pros

Cons

Verified facts

4. Katana

Pros

Cons

Verified facts