Sign 'n' Post vs SignatureAPI
Same price. 10x the volume.
Both charge $25/mo. Sign 'n' Post includes unlimited signing requests. SignatureAPI includes 100 envelopes, then $0.25 each.
Side-by-side pricing
| Sign 'n' Post | SignatureAPI | |
|---|---|---|
| Free tier | ✓ 5 signing + 100 fill requests/mo | ✕ Free trial only |
| Starter plan | $10/mo Plus: 50 signing requests, 5 members | — |
| Pro plan | $25/mo unlimited signing, 1,000 fill requests | $25/mo 100 envelopes |
| Overage | $0.02/req | $0.25/envelope |
| 100 envelopes | $25/mo | $25/mo |
| 500 envelopes | $25/mo | $125/mo |
| 1,000 envelopes | $25/mo | $250/mo |
| Team members | ✓ 10 included | ✕ 1 included, $20/each additional |
| Signing | ✓ 50/mo on Plus, unlimited on Pro | ✕ Counts against envelope limit |
Where they diverge
$0.25 per envelope adds up
SignatureAPI includes 100 envelopes for $25/mo. Envelope 101 costs $0.25. At 500/mo you're paying $125. Sign 'n' Post Pro is $25 flat with unlimited signing.
$20 per additional user
SignatureAPI includes 1 dashboard user. Each additional costs $20/mo. Sign 'n' Post includes 5 members on Plus, 10 on Pro.
No free tier
SignatureAPI offers a free trial, not a free plan. Sign 'n' Post has a permanent free tier with 5 signing requests and full API access.
Free PDF form builder
Sign 'n' Post includes a free public PDF form builder. Build fillable PDFs with text fields, checkboxes, and e-signature placements — no account needed.