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PubNub suits apps that need managed publish/subscribe messaging, persistence or presence. But one Reddit thread describes buggy chat and API integration, while another reports a Wink service change that disrupted integrations. The pricing data lists PubNub from $98 alongside a free plan, but doesn’t specify the free-tier caps. The alternatives below aren’t all direct pub/sub replacements: they’re options for teams whose real need is communications APIs, voice, video or customer conversations.
01Why people leave PubNub
Integration bugs and support concerns
A React Native Reddit poster reported duplicate chat messages, buggy APIs and an unhelpful support response. That’s one account, not a measure of typical service quality.
Service changes can break clients
In a Wink-related Reddit thread, users traced disrupted integrations to a changed subscription origin. It shows the risk of relying on a service or integration that can change.
Recheck the price against your use
The pricing data lists PubNub from $98 and a free plan, but doesn’t give the free-tier caps. Confirm the limits and expected bill before choosing to stay or switch.
02The alternatives, ranked by fit
- Custom communications workflows
TwilioTwilioChoose Twilio if the job has grown beyond PubNub-style app messaging into custom communications workflows or several messaging channels. Its listing describes usage-based APIs and a starting price of $0.0001, with a free plan. That price alone won’t predict your bill: budget for usage, and account for messaging registration friction before moving production traffic.
Trade-off: Usage can complicate budgeting, and messaging registration adds friction.
7.6/10from
$0.00/mofree plan - Realtime voice and video
DailyDailyDaily is a better fit when the reason for leaving PubNub is a need for audio or video calls, or realtime voice AI agents. Its listing starts at $0 with a free plan and highlights a realtime toolkit and open-source agent framework. It is aimed at calls and agents, not a like-for-like replacement for PubNub’s publish/subscribe messaging.
Trade-off: It targets calls and agents, not general publish/subscribe messaging.
7.0/10from
Freefree plan - Voice and video agents
LiveKitLiveKitConsider LiveKit if your app needs voice or video agents and you want control over models and behavior. The listing includes a free plan and a $50 starting price, but says projects need to fit included minute caps. That makes it worth comparing for agent workloads, not assuming it covers every PubNub messaging use case.
Trade-off: Check minute caps, model costs and telephony before production.
7.6/10from
$50/mofree plan - Multichannel customer conversations
GupshupGupshupGupshup fits teams moving from app messaging toward customer conversations across channels, WhatsApp campaigns or AI voice support. Its listing describes pay-as-you-go entry pricing, but gives no starting price and flags unclear limits and layered fees. Treat it as a different communications workflow, and get a cost breakdown before replacing anything central.
Trade-off: Starting price and limits are unclear; fees may be layered.
6.8/10from
Custom - Voice, video and messaging
Vonage Communications APIsVonage Communications APIsVonage Communications APIs may suit a team that wants voice, video and messaging in one broad API offering, particularly when serving customers across countries. The listing starts at $13.99. Pricing details and user sentiment are unverified in the published information, so confirm both the billable units and fit for your current messaging flows.
Trade-off: API pricing and user sentiment are unverified.
5.5/10from
$13.99/mo - Messaging and payments
CM.com Communications PlatformCM.com Communications PlatformCM.com is worth comparing if your switch is about coordinating customer conversations and payments rather than reproducing PubNub’s messaging layer. Its listing describes a communications toolkit, AI agents across channels and a $58 starting price. Important plan limits are unspecified, so ask for them before estimating migration cost or committing a team to the platform.
Trade-off: Plan limits are unspecified.
6.0/10from
$58/mo
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 PubNub PubNub (current) | 6.2 | $98/mo | Yes | Apps needing managed publish/subscribe messaging |
| Twilio Twilio | 7.6 | $0.00/mo | Yes | Teams building custom communications workflows |
| Daily Daily | 7.0 | Free | Yes | Teams building realtime voice AI agents |
| LiveKit LiveKit | 7.6 | $50/mo | Yes | Teams building voice or video agents |
| Gupshup Gupshup | 6.8 | Custom | No | Teams building multichannel customer conversations |
| Vonage Communications APIs Vonage Communications APIs | 5.5 | $13.99/mo | No | Teams building multi-channel customer interactions |
| CM.com Communications Platform CM.com Communications Platform | 6.0 | $58/mo | No | Teams wanting messaging and payments together |
Questions people ask
Who uses PubNub?
PubNub is for teams building apps that need managed publish/subscribe messaging, persistence or presence. The published product summary also names prototypes within free-tier caps as a fit. The exact free-plan limits aren’t specified in the pricing information here, so check those against your expected usage.
What are some alternatives to LiveChat?
If you mean customer-conversation APIs rather than hosted live-chat software, Gupshup, Twilio and CM.com are options in this comparison. Their listed use cases include multichannel conversations, messaging workflows and coordinating customer conversations. They aren’t presented here as direct LiveChat replacements; verify the product type and channel coverage you need.
What does PubNub do?
PubNub provides managed publish/subscribe messaging for apps. The published summary also identifies persistence and presence as relevant capabilities. Teams evaluating a switch should compare the replacement against the exact messaging, persistence and presence requirements they rely on, rather than choosing only by the headline starting price.