Approval software divides by what you're approving. Documents and creative: Filestage or ReviewStudio. Purchases and spend: Approve.com-class procurement tools or your accounting suite's approvals. Anything inside existing work tools: Jira, Asana and monday.com all ship approval steps. Generic form-to-approval chains: Jotform Approvals or Kissflow. And when the approval logic is genuinely yours — thresholds by amount, routing by department, delegation rules, audit needs — describing it to Greta builds the exact workflow as a real app. The wrong buy here is the common one: a generic tool whose "flexible workflows" flex every way except yours.
Approvals are where organizations discover their actual structure: who can commit money, who signs off on what, and what happens when the approver is on leave. Software either encodes those rules or approximates them — and approximations leak into email threads titled "URGENT re: re: sign-off?".
How we compared
Rule fidelity (thresholds, multi-step routing, delegation), audit trail quality, where approvers actually live (email? Slack? another tool?), and pricing at organizational scale. Pricing checked September 2026.
At a glance
| Tool | Category | Best for | Pricing shape |
|---|---|---|---|
| Filestage | Creative/document review | Agencies, marketing approvals | Per seat tiers |
| Jotform Approvals | Form-driven chains | Simple request→approve flows | Form-plan tiers |
| Kissflow | Workflow platform | Process-heavy mid-size orgs | Per user, mid-market+ |
| Jira / Asana / monday | In-tool approvals | Approvals living inside existing work | Included in plans |
| Accounting-suite approvals | Spend | Invoice/PO sign-off in the money system | Included/add-on |
| Greta | Custom-built | Your actual rules, encoded | Free tier; $20/mo ($5 welcome) |
The categories, honestly
Creative review (Filestage, ReviewStudio) does one job deeply: versioned assets, visual annotation, per-reviewer status. If approvals mean "is this design/video/PDF approved," buy here and don't generalize.
In-tool approvals (Jira, Asana, monday.com) win by location: the approval happens where the work already is, no new login. Their limits are their host's — routing logic is basic, thresholds are mostly absent, and cross-tool approvals (the purchase that spans Jira and the accounting system) fall through the gap.
Form-to-approval (Jotform, Kissflow) covers request-shaped flows: submit, route, approve, log. Jotform is the light entry; Kissflow the heavier platform when processes multiply. Both flex until the rules get conditional — "over $5k adds finance; over $25k adds the CEO; IT purchases always add security review" — where configuration turns into a consulting engagement.
Spend approvals in the money system (your accounting suite, procurement tools) are the right answer when the artifact is an invoice or PO, because the approval and the payment share a system of record. Their scope ends at money.
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When your rules deserve their own system
The conditional-routing sentence above is the tell. If your approval matrix has thresholds, role-based branches, delegation windows and an audit requirement, describing it to Greta yields the system that enforces it: "requests over $500 route to the department head; over $5k adds finance; over $25k adds the CEO; approvers can delegate for vacation windows; every action logs actor and timestamp; requesters see live status." That's a real app with role-scoped views and a database — the approval workflow spec guide shows the state-machine thinking, and the purchase approval field guide specs the spend version precisely. Free tier to build; $20/month flat ($5 welcome offer) — approval systems touch everyone, so the absence of per-seat pricing is structural savings.
The audit-trail bar
Whatever you choose, hold it to this: every approval records actor, timestamp, artifact version, and comment; the log is queryable by request; and nothing can be approved by editing data around the workflow. Systems that fail the third clause — where an admin can just change the status field — have an approval theater, and auditors know the difference.
FAQ
What is approval workflow software? Tools that route requests (documents, purchases, changes) through defined approvers in order, enforce the rules, and record who approved what when — replacing the email thread as the system of record.
Can Slack or email be the approval system? They're fine as notification layers and terrible as systems of record: no enforced order, no thresholds, no queryable audit trail. The pattern that works is approvals living in a real system that notifies through Slack/email.
How much does approval software cost? In-tool approvals come with plans you own; dedicated tools run per-seat into real money at org scale (September 2026; verify live). A custom-built system on Greta is $20/month flat — the economics invert precisely because approvals are org-wide.
How do I handle approvers being unavailable? Delegation rules — time-boxed, logged, and set by the approver in advance. It's the most common gap in bought tools and worth demanding: an approval system without delegation becomes a bottleneck system on the first vacation.
