Best Onebox Alternatives in 2026
Updated
20 apps from business phone systems ranked against Onebox on the same published basis.
- 1Onebox vs Microsoft Teams
- 2Onebox vs 3CX
- 3Onebox vs Freshcaller
- 4Onebox vs RingCentral RingEX
- 5Onebox vs Zadarma
- 6Onebox vs Nextiva
- 7Onebox vs VitalPBX
- 8Onebox vs OnSIP
- 9Onebox vs CallHippo
- 10Onebox vs Yeastar P-Series Cloud Edition
- 11Onebox vs PBXware
- 12Onebox vs NFON Cloudya
- 13Onebox vs Wildix
- 14Onebox vs Vodia PBX
- 15Onebox vs VoIPstudio
- 16Onebox vs Placetel
- 17Onebox vs Intermedia Unite
- 18Onebox vs Zoho Voice
- 19Onebox vs sipgate
- 20Onebox vs Ringover
Onebox alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Microsoft Teams | 9.7 | Free plan | $0.33/mo | Android, iOS, Linux, Mac, Web, Windows |
| 2 | 3CX | 9.4 | Free plan | $25/mo | Web, Windows, Linux, iOS, Android, Mac |
| 3 | Freshcaller | 9.1 | Free plan | $15/mo | Android, iOS, Web |
| 4 | RingCentral RingEX | 8.9 | No | Android, iOS | |
| 5 | Zadarma | 8.9 | Free plan | $44/mo | Web, Windows, Mac, iOS, Android |
| 6 | Nextiva | 8.8 | No | $15/mo | Android, Browser, iOS, Linux, Mac, Web, Windows |
| 7 | VitalPBX | 8.8 | Free plan | $100/mo | Android, API, Browser, iOS, Linux, Mac, self-hosted, Web, Windows |
| 8 | OnSIP | 8.8 | Free plan | $18.95/mo | Android, iOS, Mac, Web, Windows |
| 9 | CallHippo | 8.8 | Free plan | $18/mo | Android, Browser, iOS, Mac, Web, Windows |
| 10 | Yeastar P-Series Cloud Edition | 8.7 | Android, API, Browser, iOS, Mac, Web, Windows | ||
| 11 | PBXware | 8.7 | Web, Windows, Mac, iOS, Android, Linux | ||
| 12 | NFON Cloudya | 8.6 | No | €6.80/mo | Web, Windows, Mac, iOS, Android |
| 13 | Wildix | 8.6 | Web, Windows, Mac, Linux, iOS, Android | ||
| 14 | Vodia PBX | 8.6 | Web, Windows, Mac, Linux, iOS, Android | ||
| 15 | VoIPstudio | 8.6 | No | $6/mo | Android, Browser, iOS, Linux, Mac, Windows |
| 16 | Placetel | 8.6 | No | €690/mo | Android, API, iOS, Mac, Web, Windows |
| 17 | Intermedia Unite | 8.5 | No | $27.99/mo | Android, iOS, Mac, Web, Windows |
| 18 | Zoho Voice | 8.5 | Free plan | Android, Browser, iOS, Linux, Mac, Web, Windows | |
| 19 | sipgate | 8.4 | No | £12.95/mo | Web, Windows, Mac, Linux, iOS, Android |
| 20 | Ringover | 8.4 | No | $15/mo | Web, Windows, Mac, Linux, iOS, Android |
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Questions about Onebox alternatives
What is the best alternative to Onebox?
Microsoft Teams, number 1 in business phone systems with a score of 9.7 out of 10. The others here: 3CX, Freshcaller, RingCentral RingEX and 16 more.
What is the best free alternative to Onebox?
Microsoft Teams is the best-ranked alternative with a free plan. 8 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.