Aircall vs Signals
Which Customer Support AI tool is better in 2026?
Aircall
Cloud-based phone system and AI conversation intelligence for sales and support teams
Signals
Proactive AI customer support that engages high-value users
Side-by-side
Aircall leads on both fronts — more capital raised ($226M) and a lower entry price than Signals.
| Metric | Aircall | Signals |
|---|---|---|
| Taglinei | Cloud-based phone system and AI conversation intelligence for sales and support teams | Proactive AI customer support that engages high-value users |
| Foundedi | 2014🏆 | 2026 |
| HQi | New York, United States | San Francisco, US |
| Employeesi | 740🏆 | 1-10 |
| Neuron scorei | 75🏆 | 50 |
| Total fundingi | $226M🏆 | $500K |
| Latest roundi | Series D · Jun 2021 | Seed · Jan 2026 |
| Valuationi | $1B🏆 | — |
| Cheapest paid plani | From $30/mo🏆 | Pricing not disclosed |
| Free plani | ✗ | ✗ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free trial · From $30/mo | Pricing not listed |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Aircall and Signals.
| Capability | Aircall | Signals |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| OAuth 2.0 | ✓ | ✗ |
| SDK languages | 1 (JavaScript) | — |
| Free plan | ✗ | ✗ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Aircall
- Has raised more capital ($226M vs $500K)
- Higher Neuron score (75 vs 50)
- Offers a free trial
- Lower starting price ($30/mo)
🔵 Strengths of Signals
- Newer company (2026)
Which should you choose?
Choose Aircall if price matters most — it starts at Free trial · From $30/mo, which is friendlier for teams watching burn. Both AI Customer Support tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Aircall if you want the most established option — it has raised $226M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Aircall vs Signals — which is better?
It depends on your priority. Aircall has raised more capital and is the more established option; Signals has broader feature depth. See the side-by-side table above.
Is Aircall cheaper than Signals?
Yes — Aircall's cheapest paid plan is Free trial · From $30/mo, while Signals's is Pricing not listed.
Do Aircall and Signals offer free plans?
Aircall: Free trial only. Signals: Paid only.
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