Free live interpretation platforms can help an event host test a multilingual session, but “free” can mean very different things: a three-person test room, a listener app for an event someone else bought, or a personal transcription allowance. If you need to reach an audience, start with how many people can listen at once and who provides the translated audio. Monthly minutes alone do not answer either question.
This guide is for someone organizing a class, webinar, town hall, or conference. If you only want to follow a call yourself, see our free versus paid meeting translation guide. That page compares tools for a participant; this one checks whether an organizer can deliver interpretation to other people.
Key Takeaways
- LiveVoice publishes a free test plan for up to three simultaneous participants. Its account plans and AI translation have separate prices.
- Wordly is an AI event-translation platform with a published starting price, not a human-interpreter service without pricing.
- Interprefy can combine AI translation and human interpreters; it quotes based on the event setup.
- Zoom offers interpreter audio channels on eligible paid accounts, but the host assigns the interpreters. A free listener app does not make an event free.
- Otter and Notta publish free transcription allowances. Those numbers should not be mistaken for capacity to serve a multilingual audience.
Compare the job before the price
Ask whether you need translated captions for one person, translated audio for a room, or a professional interpreter for a consequential exchange. An event platform must deliver the output to listeners, often across several languages at once. A transcription app may record one speaker well and still offer no route for dozens of attendees to select an audio channel.
Then count the people who need the service, the length of the event, the languages, and whether a human interpreter is required. These inputs change the quote: Interprefy says duration, language count, attendees needing interpretation, and the choice of AI or human interpreters all affect its price. Free trials are useful for testing the workflow, not for assuming a production event will be free.
What the published plans actually include
The figures below come from the linked provider pages checked in October 2026. Pricing and entitlements can change, so confirm them with the provider before booking an event. “Free for listeners” describes access to an event, not the organizer’s bill.
Swipe the table sideways to compare all columns.
| Service | Published free or paid boundary | Fit for an event host |
|---|---|---|
| LiveVoice | Free test plan: up to 3 simultaneous participants. Paid account plans start at €8/day; AI voice translation and captions are priced separately per minute and language. | A direct way to test attendee audio delivery. Budget a paid plan for a larger audience. |
| Wordly | AI translation and captions; published pricing starts at about $1,500 for a 10-hour package. No free organizer tier is listed on that page. | Event-wide AI audio and captions with a published package starting point; no human interpreters supplied. |
| Interprefy | Custom quote based on event length, languages, attendee count, and AI versus human interpretation. | Ask for a quote when the event needs interpreter staffing, AI, or both. |
| Boostlingo Events | Requests a custom quote for event interpretation. Its 2026 product note describes both AI and human options. | Compare an event-specific proposal, including who supplies the interpreters. |
| Zoom Language Interpretation | Requires a Pro, Business, Education, or Enterprise account and host-assigned interpreters. | Audio routing for a host who already has interpreters; not an interpreting service. |
| KERN RSI VoiceApp | Attendees can use the app or free browser view with an event code and PIN. The organizer arranges the interpreted event with KERN. | Free listener access is not a free event plan. |
| JotMe Free | 20 minutes per month shared by live translation or real-time summary, plus 50 transcription minutes. | Useful for testing an individual meeting workflow; verify audience delivery separately. |
| Notta Free | 120 transcription minutes per month, up to 3 minutes per conversation, and 2 free real-time translation uses. | A short individual test, not a documented event-wide interpreter channel. |
| Otter Basic | 300 transcription minutes per month; access to only the first 30 minutes of each transcript on the free plan. | Transcription allowance, not a live multilingual audience service. |
| MirrorCaption | One free hour per eligible person as an initial allowance, not a monthly refill. | One person or a small shared-screen conversation. No separate attendee channels or human interpreters. |
Three traps in a “free” interpretation list
A listener app is not the organizer plan
KERN’s VoiceApp lets participants join an interpreted event with a code and PIN. That does not establish a free event for the person commissioning it. Ask whether the organizer must book the platform, technical support, interpreters, or all three.
A transcript limit is not a translated-audio limit
Otter’s 300-minute free allowance refers to transcription, and its help page says recordings may continue after 30 minutes while only the first 30 minutes of the transcript remain accessible on Basic. Saying the conversation itself “stops” would be inaccurate. Notta’s three-minute cap is per free transcription. Neither figure proves an audience audio service.
An AI service and a staffed service cost different things
Wordly says it uses AI rather than human interpreters and publishes a package starting price. Interprefy and Boostlingo offer human-interpreter options with event-specific quotes. There is no sound basis for calling all three “human-only” or claiming none publishes any price. Compare the deliverable first: AI voice, translated captions, interpreter channels with your own staff, or an interpreter supplied by the vendor.
Choose a route for your actual event
Three-person rehearsal: LiveVoice’s test plan is a practical way to check devices, headphones, channels, and latency before paying for a larger audience. Check whether any AI feature you want to test adds usage charges.
Webinar with your own interpreters: If you already have eligible Zoom licensing, its Language Interpretation channels let the host assign interpreters and attendees choose audio. Confirm the interpreters’ availability and compensation separately.
Event-wide AI translation: Compare LiveVoice’s participant and per-language charges against Wordly’s hour packages. A 60-person, 90-minute event is outside LiveVoice’s three-person test plan; the host needs a paid plan or a different event service. Do not infer that a personal 300-minute transcription plan covers those 60 listeners.
High-stakes or staffed event: Ask Interprefy or Boostlingo for a quote that specifies the languages, audience, session length, interpreter staffing, preparation, support, and cancellation terms. AI output should be reviewed against the risk of the setting; an AI trial is not a substitute for a required qualified interpreter.
Where MirrorCaption fits
MirrorCaption supports live translation for a person following a meeting or a small conversation. Its initial free hour is a one-time allowance for an eligible person. It does not recruit interpreters or give each event attendee a separate language audio channel, so it is not an event-wide interpretation service. The current app lists a €54.99 yearly plan with 110 hosted hours, a €99 one-time plan with 200 hosted hours, and a €4.99 five-hour Voice Pack; check the in-app offer for the current price before purchase.
For a small group sharing one device, try one real conversation. For a room of independent listeners, request an event platform quote. Our guide to meeting translation without plugins covers the individual browser workflow in more detail.
Frequently Asked Questions
Is there a free platform for a multilingual event?
LiveVoice publishes a free test plan for up to three simultaneous participants. For a larger audience, check its paid account plan and any separate AI translation charges. A free attendee app or a transcription allowance is not a free event service.
Is Wordly a human interpreting platform?
No. Wordly describes its event translation and captions as AI-powered and publishes pricing starting at about $1,500 for a 10-hour package. It can serve event audiences, but it does not supply human interpreters.
Does Zoom include a human interpreter?
Zoom Language Interpretation provides audio channels on eligible paid accounts. The host must assign people to interpret; enabling the feature does not hire an interpreter.
Can Otter or Notta translate a town hall for the audience?
Their published free allowances are useful for testing individual transcription or translation workflows, but they are not evidence of an audience-wide interpretation channel. Otter Basic offers 300 transcription minutes per month with access to only 30 minutes of each transcript; Notta Free offers 120 transcription minutes and up to three minutes per conversation.
What should an organizer check before choosing a free tier?
Confirm how many people can listen at once, whether listeners receive translated audio or text, who supplies human interpreters, the maximum session duration, and whether the free allowance repeats or is a one-time trial.
Test a Small Conversation
Try the one-time free hour and check the current plan in the app.
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