head to head · open source
Polar vs idurar-erp-crm
Polar has 10,454 GitHub stars, 811 forks, 141 open issues and last shipped yesterday. idurar-erp-crm has 8,934 stars, 3,163 forks, 483 open issues and last shipped 3 months ago. Polar leads on adoption by 17% (10,454 vs 8,934 stars). Polar is written in Python under Apache-2.0; idurar-erp-crm is written in JavaScript under AGPL-3.0. Polar has attracted 8% as many forks as stars, idurar-erp-crm 35%. Polar was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Polar | idurar-erp-crm | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 8.9K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-08-14 |
| Forks | ⑂ 811 | ⑂ 3.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Polar if
- You weight community size — 10K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick idurar-erp-crm if
- You want the idurar-erp-crm feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and idurar-erp-crm fits your workflow better
About Polar
Website • Docs • API Reference Polar: A billing platform for the intelligence era Turn usage into revenue. Polar is the financial layer for a new generation of intelligent software, built for AI startups that need to charge for tokens, agents, and compute without building billing infrastructure from scratch. Ship any pricing model in an afternoon. Usage billing, subscriptions, seats, credits, trials, and discounts. Compose them however your product charges. Meter what matters. Bill tokens, API calls, agent runs, GPU seconds, and storage with precision down to the event. Checkouts that convert , realtime metrics…
read the full Polar overview →
About idurar-erp-crm
Open Source ERP / CRM Accounting Invoice Quote IDURAR ERP CRM Simple To Use IDURAR is Open Source ERP / CRM (Invoice / Quote / Accounting ) Based on Advanced Mern Stack (Node.js / Express.js / MongoDb / React.js ) with Ant Design (AntD) and Redux 🚀 Self hosted Entreprise Version : Features : Invoice Management Payment Management Quote Management Customer Management Ant Design Framework(AntD) 🐜 Based on Mern Stack (Node.js / Express.js / MongoDb / React.js ) 👨💻 May i can use IDURAR for Commercial use : Yes You can use IDURAR for free for personal or Commercial use. Our Sponsors Free Open Source ERP / CRM App…
read the full idurar-erp-crm overview →
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Frequently asked questions
Is Polar or idurar-erp-crm more popular?
Polar has 10,454 GitHub stars and idurar-erp-crm has 8,934. Polar has the larger community by that measure.
Are Polar and idurar-erp-crm free?
Both are open source. Polar is licensed under Apache-2.0 and idurar-erp-crm under AGPL-3.0. Neither carries a licence fee.
What is the difference between Polar and idurar-erp-crm?
Polar is written in Python and idurar-erp-crm in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Polar or idurar-erp-crm?
Choose Polar if you want the larger community (10,454 stars) or its Apache-2.0 licence terms. Choose idurar-erp-crm if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.