Vapi vs Retell for UAE Deployments: The Comparison Nobody Localises

Search "Vapi vs Retell" and the results read almost identically: a per-minute headline number, a US Twilio rate quietly standing in for "telephony," and a language section that stops at English and Spanish. Most of these comparisons are published by the platforms themselves or by US agencies reselling both. None of them touch what actually decides the outcome for a Dubai business: a +971 number registered the right way, Arabic that has to work on a real call rather than a demo, and a compliance framework neither platform was built around.

MAJ Leads runs both stacks in production for UAE clients, so this is not a spec-sheet exercise. It is what the two platforms actually cost, and actually require, once calls are routed through TDRA-registered telephony to callers who might open in Arabic, English, Hindi, or Malayalam in the same afternoon.

What do Vapi and Retell actually charge, in real terms?

Start with what each vendor publishes, because the headline numbers mislead in opposite directions. Vapi's Build plan charges $0.05 per minute for call hosting only, with every model-provider cost (speech-to-text, the LLM, text-to-speech) passed through separately at actual cost. Retell's pay-as-you-go tier quotes $0.07 to $0.31 per minute, and that figure already bundles voice infrastructure, text-to-speech, and the LLM into one number. Compare $0.05 to $0.07 and Vapi looks cheaper. Compare what each number actually includes and the picture is less clear-cut.

Retell's own breakdown explains why its band is wide: $0.055/min for voice infrastructure, plus $0.015/min for standard text-to-speech (Retell, Minimax, Fish, Cartesia, or OpenAI voices) or $0.040/min if you choose ElevenLabs voices, plus an LLM layer priced $0.003 to $0.16 per minute depending on the model. GPT-4.1, for reference, sits at $0.045/min on Retell's own published table. None of that is hidden; it is bundled, where Vapi's is not.

Retell's published add-on menu is longer than Vapi's, and the relevant ones for a UAE outbound or support deployment are a knowledge base at $0.005/min or $8/month, batch calling at $0.005/dial, advanced denoising at $0.005/min, safety guardrails at $0.005/min, and PII removal at $0.01/min. Vapi's own menu is shorter and pointed at a different buyer: HIPAA compliance at $2,000/month and Zero Data Retention at $1,000/month, both stacked on top of the Build or Scale plan. Neither add-on is a UAE compliance product on its own, but both become relevant to a UAE data-residency conversation, which we come back to below.

Does the telephony model matter more than the AI platform in the UAE?

Yes, and this is the gap every US-written comparison misses, because in the US telephony is close to a rounding error next to the AI stack. Neither Vapi nor Retell publishes a UAE telephony rate on its own pricing page. What decides your real cost, and whether the deployment even holds up reliably, is the SIP route and the +971 number behind it, not which AI platform sits on top of it.

Twilio's own published UAE rate card gives the market reference point: outbound calls to a UAE local number cost $0.3635 per minute, outbound calls to a UAE mobile number cost $0.2995 per minute, and the SIP/WebRTC interface itself runs $0.0040 per minute, the same rate in both directions. All three figures are current as of 27 July 2026 and worth re-checking before you budget, since carrier pricing moves.

This is why registered SIP matters more than the AI platform's own billing model. A number that is not registered under your trade licence is a compliance problem before it is a cost problem. Cabinet Resolution 56's Article 4(3) requires marketing calls to use local numbers registered under the calling company's commercial licence, and Article 4(13) separately bars using numbers that are not registered to the licensed company at all. This is the same reasoning behind our own on-site build for IT World Trading LLC: a multilingual outbound agent running on TDRA-compliant SIP telephony installed on-site, rather than routed through international termination.

Does Arabic quality actually differ between the two platforms?

Neither platform publishes an Arabic quality score, and no honest vendor would. Speech-to-text and text-to-speech performance in Gulf Arabic varies by the specific voice, the specific STT model, and the specific prompt, not by which orchestration platform is running underneath. A vendor who quotes you a benchmark number for "Arabic support" is quoting something neither Vapi nor Retell has published anywhere.

What we run instead, on every deployment regardless of which platform it sits on, is a test of the full realtime pipeline in both language directions before a single live call happens: a caller opening in English, a caller opening in Arabic, and the mid-call switch between them. That is a websocket-level test against the actual voice pipeline, not an offline transcript check, because a transcription engine can pass a batch test on clean audio and still mishear or mis-render Arabic on a live mobile call. If a vendor cannot show you that test, ask why not.

Which platform is wired for TDRA compliance out of the box?

Neither. Vapi and Retell are voice-AI orchestration platforms built for a global market, and TDRA compliance is something you configure on top of either one, not a switch either vendor ships pre-enabled for the UAE.

Three obligations under Cabinet Resolution 56 of 2024 apply regardless of platform: the agent must inform the caller that the call is being recorded, at the start of the call (Art. 4(7)); marketing calls may only run inside the 09:00 to 18:00 window (Art. 5(3)); and outbound numbers must be screened against the Do Not Connect Register before the call is placed (Art. 4(5)). All three are decisions built into your prompt design and your dialer logic on whichever platform you choose. See our full reference on the UAE telemarketing rules for the complete provision-by-provision breakdown.

Across MAJ's own production outbound dialing (1,094 timestamped dials over the 2 June to 12 July 2026 campaign), 100.0% fell inside the permitted weekday 09:00–18:00 GST window. Not because either platform enforces that on its own, but because the scheduler we built refuses to place a call outside it. See the full cold-calling benchmark for the rest of that dataset.

The data-residency question sits alongside this. The UAE's Personal Data Protection Law (Federal Decree-Law No. 45 of 2021) requires clear, specific consent for processing personal data, but its Executive Regulations, meant to clarify exactly this kind of operational detail, had still not been issued as of 27 July 2026. That gap is where Vapi's add-on menu becomes relevant again: Zero Data Retention at $1,000/month and HIPAA compliance at $2,000/month are the concrete, priced levers available today if a client's data-residency posture demands them, ahead of clearer PDPL guidance.

So which platform should a UAE business actually choose?

On the published numbers alone, as of 27 July 2026, Vapi is cheaper at the floor if you are comfortable sourcing and managing your own model providers, and Retell is simpler to budget because the bundle is one number instead of four. Neither difference is large enough to be the deciding factor, because in a UAE deployment the SIP route, tested Arabic, and compliance wiring cost more, in money and in risk, than the gap between $0.05 and $0.07 a minute.

The honest answer is that platform choice is the least consequential decision on this list. Both run in UAE production today when the telephony is registered correctly, the Arabic has actually been tested rather than assumed, and the compliance rules are built into the dialer rather than bolted on after a complaint. That is the work behind our own AI receptionist deployments in Dubai and AI appointment booking builds, regardless of which of the two platforms sits underneath a given client's build; see the full range of services we deploy for how that maps to a specific use case. If you want the platform-agnostic buyer's framework that goes beyond just these two, see the seven questions that matter when choosing a voice-AI platform for the UAE.