Side by side
CollectFlows vs InvoiceShelf
Both stand on accounts receivable software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial AndroidAPIiPhone+1
Choose CollectFlows if your business needs to organize its own overdue B2B invoices, promises, and customer follow-ups. Look elsewhere if you need a service to contact debtors or collect debt on your behalf; CollectFlows does not perform that work.
Visit CollectFlows
Free plan Open source AndroidAPISelf-hosted+1
InvoiceShelf combines invoicing, expense tracking, payment records, customer access, and reports in a free self-hosted package. Its hosting requirements and setup are worth considering before choosing it.
Visit InvoiceShelfThe facts
| CollectFlows | InvoiceShelf | |
|---|---|---|
| Free plan | A free trial | Yes |
| Open source | Not published | Yes |
| Runs on | Android, API, iPhone, Web | Android, API, Self-hosted, Web |
| Lowest paid plan | Growth: 145 AED a month | Free or on request |
| Plans published | 3 | 2 |
| Maker | Not published | Not published |
| Website | collectflows.com | invoiceshelf.com |
| On accounts receivable software | #5 of 28 | #1 of 28 |
CollectFlows: what it does well
- Imports invoice, collections, and branch-target files from Excel or CSV
- Automatically groups invoices into due-date aging buckets
- Tracks promises and flags them after their dates pass
- Logs calls, emails, and WhatsApp touchpoints with attribution
- AI assistant supports English and Arabic, including voice input
What to know first
- No free plan
- Growth excludes the AI assistant and Microsoft 365 connection
- Business limits use to 20 users
InvoiceShelf: what it does well
- Free forever, open source under AGPL-3.0
- Unlimited invoices and customers
- Recurring invoices and payment reminders
- Customers can view documents in a private portal
- Backups can include files, database, or both
What to know first
- Requires self-hosting and server setup
- Requires PHP 8.3 or 8.4
- Webhooks are marked as coming soon
Alternatives to CollectFlows Alternatives to InvoiceShelf The whole list