Best Invoice Approval Software in 2026
Updated
In short: Keelstar is ranked #1 of 37 as of 5 October 2026, ahead of Nanonets Approval Routing Agent and hh2 AP Routing & Approval. The best-ranked option with a free plan is Nanonets Approval Routing Agent. The lowest first paid tier on this page is Finmatics at €1.05/mo.
Invoice approval software can help organize how invoices move through review and sign-off. Compare approval audit trails, conditional routing, delegated approvals, and parallel approvals to assess how entries handle different approval paths. Invoice comments and mobile approval offer additional workflow points to consider, while free-plan availability and paid-from pricing help frame access and cost. Keelstar, Nanonets Approval Routing Agent, and hh2 AP Routing & Approval are among the options; Vic.ai APSuite is also included. Consider who reviews invoices, how decisions need to be recorded, and whether your process calls for delegated or simultaneous approvals.
37 invoice approval software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
3 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | KeelstarWeb · API | Two bars | — | 1 of 6 | $49/mo | 6.4 | |
| 2 | Nanonets Approval Routing AgentWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 3 | hh2 AP Routing & ApprovalWeb · Android · iPhone | Two bars | — | — | 3 of 6 | — | 5.6 |
| 4 | Vic.ai APSuiteWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | $2083.33/mo | 5.6 |
| 5 | XtractWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.5 |
| 6 | DocuClipper Invoice ApprovalWeb · Windows · Mac · Linux · Android · iPhone · API | Two bars | — | — | 6 of 6 | $20/mo | 5.4 |
| 7 | Onivo APWeb | One bar | — | — | 1 of 6 | — | 5.4 |
| 8 | Traild Invoice ApprovalWeb | One bar | — | — | 1 of 6 | — | 5.4 |
| 9 | BillRouteWeb | One bar | — | — | 1 of 6 | — | 5.3 |
| 10 | Document Logistix AP Approval WorkflowWeb · Windows · Mac | One bar | — | — | 3 of 6 | — | 5.3 |
| 11 | DOKKAWeb · Android | No signal | — | — | 2 of 6 | — | 5.3 |
| 12 | OCR-Genius Invoice ApprovalWeb · API | One bar | — | — | 1 of 6 | — | 5.3 |
| 13 | ApprovalSoftWeb · Windows | No signal | — | — | 2 of 6 | — | 5.2 |
| 14 | CflowWeb · Android · iPhone · Self-hosted · API | Two bars | — | — | 3 of 6 | $22/mo | 5.2 |
| 15 | EnvoiceWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | $10/mo | 5.2 |
| 16 | FinControlWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | €49/mo | 5.2 |
| 17 | FinmaticsWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | €1.05/mo | 5.2 |
| 18 | Hili BillingWeb | One bar | — | 1 of 6 | $29/mo | 5.2 | |
| 19 | InvoiceraWeb · Mac · Android · iPhone | Two bars | — | — | 4 of 6 | $50/mo | 5.2 |
| 20 | LightyearWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | $199/mo | 5.2 |
| 21 | RillionWeb · Android · iPhone | Two bars | — | — | 3 of 6 | — | 5.2 |
| 22 | Wrapbook AP Invoice Approval WorkflowsWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 23 | APFlowWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 24 | PleoWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | £8/mo | 5.1 |
| 25 | Qvalia WorkflowWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.1 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Conditional routing | Parallel approvals |
|---|---|---|---|---|---|---|---|---|
| 1 | Keelstar | 6.4 | Free plan | $49/mo | Yes | — | Yes | No |
| 2 | Nanonets Approval Routing Agent | 6.4 | Free plan | Free | Yes | — | Yes | Yes |
| 3 | hh2 AP Routing & Approval | 5.6 | No | — | — | — | Yes | Yes |
| 4 | Vic.ai APSuite | 5.6 | No | $2083.33/mo | — | — | Yes | Yes |
| 5 | Xtract | 5.5 | No | — | — | — | Yes | — |
| 6 | DocuClipper Invoice Approval | 5.4 | No | $20/mo | No | — | Yes | — |
| 7 | Onivo AP | 5.4 | No | — | — | — | Yes | — |
| 8 | Traild Invoice Approval | 5.4 | No | — | — | — | Yes | — |
| 9 | BillRoute | 5.3 | No | — | — | — | Yes | — |
| 10 | Document Logistix AP Approval Workflow | 5.3 | No | — | — | — | Yes | Yes |
| 11 | DOKKA | 5.3 | No | — | — | — | — | — |
| 12 | OCR-Genius Invoice Approval | 5.3 | No | — | — | — | Yes | — |
| 13 | ApprovalSoft | 5.2 | No | — | — | — | — | — |
| 14 | Cflow | 5.2 | No | $22/mo | No | 22 /user/mo | — | — |
| 15 | Envoice | 5.2 | No | $10/mo | No | — | Yes | Yes |
| 16 | FinControl | 5.2 | No | €49/mo | No | — | Yes | — |
| 17 | Finmatics | 5.2 | No | €1.05/mo | No | — | Yes | — |
| 18 | Hili Billing | 5.2 | Free plan | $29/mo | Yes | — | — | — |
| 19 | Invoicera | 5.2 | No | $50/mo | No | — | — | — |
| 20 | Lightyear | 5.2 | No | $199/mo | No | — | — | — |
| 21 | Rillion | 5.2 | No | — | No | — | — | — |
| 22 | Wrapbook AP Invoice Approval Workflows | 5.2 | No | — | — | — | Yes | Yes |
| 23 | APFlow | 5.1 | No | — | — | — | — | — |
| 24 | Pleo | 5.1 | No | £8/mo | No | 14 /user/mo | — | — |
| 25 | Qvalia Workflow | 5.1 | No | — | No | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which invoice approval software is ranked first on Freedom251?
Keelstar is ranked #1 of 37 with a score of 6.4. Nanonets Approval Routing Agent is second and hh2 AP Routing & Approval third.
How many of these have a free plan?
3 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Finmatics has the lowest first paid tier we found: €1.05/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.