Comparison · facts checked
OnDue vs Upflow
Upflow is an established receivables platform priced by revenue band, with broad integrations and AI agents on its higher plans. OnDue is narrower: chasing for QuickBooks Online and Xero, with the price on the site.
What Upflow does better
- Unlimited seats on every plan.
- Integrations well beyond QuickBooks and Xero, including NetSuite, Sage Intacct, HubSpot, Salesforce and billing systems.
- AP portal and cash application agents on its higher plans.
Which one to pick
Pick Upflow if
- You need NetSuite, Sage Intacct, a CRM or a billing system integration today.
- You want unlimited seats for a large AR team.
- You need AP portal submission or a cash application agent.
Pick OnDue if
- You run QuickBooks Online or Xero and want to start without a quote.
- You want a published early-access price instead of a quote.
- You want approval-first AI reminders and reply sorting at $49 or $149 a month.
Line by line
Upflow facts are from Upflow’s own pages and the sources listed below, read on November 6, 2026. Products change; check before you buy.
Pricing
Every plan says “Ask for a quote”. Plans are set by annual invoiced revenue: Starter (up to $10M), Grow (up to $25M), Scale (up to $50M), Accelerate (up to $100M), Enterprise (over $100M).
Source: upflow.io/pricingPublished early-access prices: Starter $49/mo, Growth $149/mo, Scale from $499/mo; annual billing gets 2 months free. Billing hasn’t started, so nobody is charged during early access.
Seats
1 on Starter, 5 on Growth, sized to your team on Scale.
AI agents
An Insights Agent on all plans. Collections and AP Portal agents on Scale and above. A Cash Application agent on Accelerate and above.
Source: upflow.io/pricingAI-drafted reminders you approve, and reply sorting, on every plan.
Payment fees
Upflow Payments: 3.5% + $0.30 on cards and 0.8% on ACH (capped at $5), plus a $390/month platform fee.
Source: upflow.io/pricingA card and ACH pay page through Stripe, at Stripe's standard rates with no OnDue fee, Coming soon. Today customers pay the way they already do, and OnDue stops the reminders when you record the payment.
Integrations
QuickBooks Online, Xero, Pennylane, Rillet, NetSuite, Sage Intacct, HubSpot, Salesforce, Chargebee, Stripe Billing and Zuora.
Source: upflow.io/pricingQuickBooks Online and Xero. Stripe payments, NetSuite, Sage Intacct, Chargebee, Zuora and Stripe Billing Coming soon
AP portal submission
Not available. Coming soon
Cash application
Payments you record in your books stop the reminders. Pay-page write-back and bank-feed cash application Coming soon
Questions
How much does Upflow cost?
As of November 2026, Upflow's pricing page asks for a quote on every plan, set by annual invoiced revenue. Upflow Payments adds 3.5% + $0.30 on cards, 0.8% on ACH (capped at $5) and a $390/month platform fee.
Is OnDue an Upflow alternative for small businesses?
Yes, if you run QuickBooks Online or Xero and want a published price and self-serve setup. If you need NetSuite or Sage Intacct today, unlimited seats or AP portal submission, Upflow covers more.
Does OnDue charge for payments?
No. OnDue doesn't take payments yet; its Stripe pay page is coming soon. When it launches, card and ACH payments are processed by Stripe at Stripe's standard rates and OnDue adds no fee.
Next time an invoice goes late, let OnDue draft the first email.