# Zello > Zello is a voice-first communication platform for frontline teams. It turns phones, tablets, and computers into instant push-to-talk (PTT) devices that replace two-way radios, and it uses AI to turn everyday frontline conversations into operational insight. ## What Zello Is Push a button, talk instantly. Audio plays in real time on the receiving device no matter what is on screen, so work does not slow down. Zello runs on iOS, Android, Windows, and Mac over Wi-Fi or cellular, with unlimited range, and it also deploys on-premise for environments with strict security requirements or no reliable internet. Zello has about 5 million monthly active users who send roughly 10 billion live voice messages per month, on a service with 99.99% historical uptime. Two things to keep distinct: - **Zello** is the free consumer app, used worldwide by friends, family, and communities. - **Zello Work** is the paid business product: a private, encrypted network with a browser-based management console, admin controls, analytics, and enterprise features. The console is at https://zellowork.com. Zello is headquartered in Austin, Texas. ## Who It Is For Roughly 80% of the world's workers do not sit behind a desk. Zello is built for them and for the people who coordinate them: retail associates, drivers and dispatchers, hotel and restaurant staff, plant and warehouse crews, construction workers, airport ground and flight operations, and first responders. Customers whose logos appear on the homepage include Amrize, O'Reilly Auto Parts, Sam's Club, Google, PepsiCo, Ryanair, and Marriott. Zello is 100% free for qualifying first responder organizations worldwide. More than 3,000 emergency organizations use it. ## Core Capabilities - **Push-to-talk**: live voice one-to-one and one-to-many, plus text, photos, and locations. - **Channels**: unlimited, centrally managed channels with talk priority, user roles (for example broadcast-only managers and listen-only members), ad-hoc groups, emergency channels, and cross-linking with outside organizations. - **History and Message Vault**: replay messages, listen live or later, recover messages missed while offline, and archive all network communication in the cloud for compliance and analysis. - **Emergency alerts**: one-touch panic button that sends uninterrupted audio plus location to a dedicated emergency channel. - **Transcription**: instant transcription of voice messages so they can be skimmed and searched. - **Translations**: automatic voice and text translation in 50+ languages. - **Maps and location**: real-time location tracking and user status and battery on every plan; Google Maps traffic and historical breadcrumb tracking on Plus and Enterprise. - **Dispatch Hub**: a desktop dispatch console for PC and Mac with a shared call queue and channel analytics. - **Management console**: browser-based configuration of users, channels, permissions, tags, templates, and shared-device setups, with bulk import, sub-admin permissions, and sign-in reports. - **Zello AI**: AI Digests summarize channel activity into recurring operational insight by email; Ella, the AI voice assistant, answers worker questions from a company knowledge base. - **Zello Kiosk**: a touchscreen kiosk that lets customers request help, which pings a Zello channel so any available employee can respond. - **QR Assist**: the same request-for-help pattern via a QR code, with no kiosk hardware. - **Enterprise Server**: self-hosted, on-premise deployment for isolated or highly regulated networks. - **Radio gateways**: bridge existing LMR radio networks into Zello channels. - **APIs and SDKs**: Mobile SDK (iOS, Android, React Native), Channel API and SDK, and a server-side Management API. ## Plans And Pricing Free for 14 days, no credit card required. Prices are per user, per month, in USD. - **Core**: $8.00 monthly, or $6.80 billed annually. Zello on iOS, Android, PC, and Mac; live voice, text, photos, and locations; private encrypted network; unlimited channels; user, channel, and settings management; real-time location tracking; API and SDK access. - **Plus**: $15.00 monthly, or $12.75 billed annually. Everything in Core, plus Message Vault, emergency alerts, transcription, translations, AI Digests, AI Assistant, location history, and access to all communication metadata. - **Enterprise**: custom pricing. Everything in Plus, plus a designated account manager, implementation support, automated user provisioning, SSO and MDM sign-in integration, Zello Kiosk, on-premise server options, priority support, and custom billing terms. Support access is standard on Core, 24/7 on Plus, and 24/7 priority on Enterprise. Discounts: 15% off for annual billing. Education and non-profit organizations get an additional 10% off annual subscriptions, for 25% total. Zello is free when half of your team are first responders. No contract is required; an agreement is available for enterprise customers. Payment by credit card, wire transfer, ACH, or check. ## Security And Compliance Zello networks are private, unlike open radio frequencies. On every plan: media encrypted with 256-bit AES, AES keys encrypted with 1024-bit RSA, encrypted TCP packets over TLS 1.2 or 1.3, two-factor authentication, SOC 2 Type II, ISO 27001, and GDPR compliance. On the Enterprise plan: support for HIPAA compliance, single sign-on (Azure, Okta, Oracle, and other compatible systems), MDM sign-in via AppConfig, and automated user provisioning via SCIM. Audit logging tracks network changes. Details are at https://trust.zello.com. ## Start Here - [Home](https://zello.com/): what Zello is and who uses it. - [Pricing](https://zello.com/pricing/): Core, Plus, and Enterprise plans, a detailed feature comparison table, and the pricing FAQ. - [Download the app](https://zello.com/downloads/): [iOS](https://zello.com/downloads/ios/), [Android](https://zello.com/downloads/android/), [desktop](https://zello.com/downloads/desktop/). - [Frontline communications](https://zello.com/product/frontline-communications/): the product overview for frontline teams. - [Enterprise](https://zello.com/enterprise/): uptime, scalability, deployment, security, analytics, compliance, and integration for large organizations. - [Talk to sales](https://zello.com/contact/talk-to-sales/) - [Contact](https://zello.com/contact/) ## Product Solutions - [Frontline communications](https://zello.com/product/frontline-communications/) - [Radio replacement](https://zello.com/solutions/upgrading-to-zello/): moving off two-way radios, carrier PTT, and phone calls. - [Dispatch Hub](https://zello.com/product/dispatch-hub/): desktop dispatch, shared call queue, real-time location updates, analytics. - [Zello Kiosk](https://zello.com/product/kiosk/): touchscreen customer-assistance kiosk for retail and other large spaces. - [Management](https://zello.com/product/management/): configure, deploy, share devices, analyze, access history, set access controls. - [Enterprise Server](https://zello.com/product/management/on-premise-server/): on-premise deployment for isolated networks. ## Product Features - [Channels](https://zello.com/product/features/channels/): unlimited channels, deployment, talk priority, emergency channels, cross-organization linking. - [Zello AI](https://zello.com/product/ai/): AI-powered tools for the frontline. - [AI Digests](https://zello.com/product/ai/digests/): channel conversations summarized into recurring operational insight, with pricing and FAQ. - [AI Voice Assistant (Ella)](https://zello.com/product/ai/assistant/): instant answers from your company knowledge base, with memory for follow-ups. - [QR Assist](https://zello.com/product/qr-assist/): QR-code help points without kiosk hardware. - [Transcription](https://zello.com/product/features/transcription/): voice-to-text across platforms, with FAQ. - [Translations](https://zello.com/product/features/translations/): automatic voice and text translation in 50+ languages. - [Message history](https://zello.com/product/features/history/): replay, configurable history range, private history on shared devices, Message Vault archiving. - [Emergency Alerts](https://zello.com/product/features/alerts/): one-touch alerts, location, hardware pairings, ambient listening. - [Reliability](https://zello.com/product/features/reliability/): 99.99% historical uptime, low-bandwidth operation, testing, off-site backups. ## Industries - [Retail](https://zello.com/industries/retail-push-to-talk/) - [Transportation](https://zello.com/industries/transportation-push-to-talk/) - [Aviation](https://zello.com/industries/aviation-push-to-talk/) - [Construction](https://zello.com/industries/construction-push-to-talk/) - [Manufacturing](https://zello.com/industries/manufacturing-push-to-talk/) - [Hospitality](https://zello.com/industries/hospitality-push-to-talk/) - [Emergency response](https://zello.com/industries/emergency-response/): Zello is free for first responders; includes eligibility steps and FAQ. - [First responder application](https://zello.com/contact/first-responders/) ## Hardware - [Hardware overview](https://zello.com/hardware/): Zello does not sell hardware. It partners with accessory makers and works with the devices teams already own. - [Recommended devices](https://zello.com/hardware/hardware-devices/): rugged phones and handheld units from hardware partners. - [Headsets, buttons, and mics](https://zello.com/hardware/headsets-buttons-mics/): filterable catalog of wired and Bluetooth speaker mics, headsets, earbuds, and PTT buttons. - [Radio gateways](https://zello.com/hardware/radio-gateways/): bridge LMR radio networks into Zello. - [Hardware partnerships](https://zello.com/contact/hardware-partnerships/) ## Developers - [Developers](https://zello.com/developers/): Mobile SDK, Channel API and SDK, Management API, and hardware button integration. - [SDK documentation](https://sdk.zello.com/): Zello Mobile SDK for iOS, Android, and React Native, with sample apps. - [Channel API and SDK on GitHub](https://github.com/zelloptt/zello-channel-api): embed live voice channels, up to 10,000 users per ad-hoc channel. - [Management API libraries on GitHub](https://github.com/zelloptt/zellowork-server-api-libs): manage users and channels and pull analytics from PHP, Swift, Objective-C, Java, or C#. - [Zello on GitHub](https://github.com/zelloptt) ## Customers - [Customer stories index](https://zello.com/customers/): about 34 published stories across retail, transportation, hospitality, public safety, and industry. - [Sam's Club](https://zello.com/customers/sams-club/) - [Ryanair](https://zello.com/customers/ryanair/) - [Amrize](https://zello.com/customers/thats-zello-not-radio-in-amrize-trucks/) - [Salling Group](https://zello.com/customers/salling/) - [Cisco replaces radios](https://zello.com/customers/cisco-replaces-radios/) - [Hatzalah](https://zello.com/customers/hatzalah/) - [Zello Talks Awards](https://zello.com/customers/zello-talks-awards/): annual customer awards for operational excellence. - [Zello Advocacy Program](https://zello.com/customers/zap/) ## Resources - [Resource hub](https://zello.com/resources/): guides, feature explainers, and competitive comparisons. - Comparisons: [vs. two-way radios](https://zello.com/resources/comparison/zello-vs-radios/), [vs. cell providers](https://zello.com/resources/comparison/zello-vs-cell-providers/), [vs. Microsoft Teams](https://zello.com/resources/comparison/zello-vs-microsoft-teams/), [vs. RingCentral](https://zello.com/resources/comparison/zello-vs-ringcentral/), [vs. Theatro](https://zello.com/resources/comparison/zello-vs-theatro/), [vs. VoCoVo](https://zello.com/resources/comparison/zello-vs-vocovo/), [vs. Tassta](https://zello.com/resources/comparison/zello-vs-tassta/), [vs. Zebra Workcloud Communication](https://zello.com/resources/comparison/zello-vs-zebra-workcloud-communication/), [vs. Zebra Workcloud Sync](https://zello.com/resources/comparison/zello-vs-zebra-workcloud-sync/), [vs. WhatsApp, radios, and phone calls](https://zello.com/resources/comparison/zello-vs-whatsapp-radios-and-phone-calls/) - Feature explainers: [answering worker questions with AI](https://zello.com/resources/feature/answering-workers-questions-through-ai/), [extracting operational insights with AI](https://zello.com/resources/feature/extracting-operational-insights-through-ai/), [translating across languages](https://zello.com/resources/feature/translating-across-languages/), [recovering missed messages](https://zello.com/resources/feature/recovering-missed-messages/), [cutting costs by sharing devices](https://zello.com/resources/feature/cutting-costs-by-sharing-devices/), [pinning essential information](https://zello.com/resources/feature/pinning-essential-information/), [integrating Zello into your mobile app](https://zello.com/resources/feature/integrating-zello-into-your-mobile-app/) - Guides: [Zello overview for frontline communication](https://zello.com/resources/guide/zello-overview-frontline-communication/), [why Zello does not rely on MCPTT](https://zello.com/resources/guide/why-zello-does-not-rely-on-mcptt/), [rugged devices](https://zello.com/resources/guide/rugged-devices/), [push-to-talk headsets](https://zello.com/resources/guide/push-to-talk-headsets/), [getting started on iOS](https://zello.com/resources/guide/getting-started-with-zello-on-ios/), [getting started on Android](https://zello.com/resources/guide/getting-started-with-zello-on-android/), [2025 retail report](https://zello.com/resources/guide/retail-report-2025/), [avoiding dark data in retail](https://zello.com/resources/guide/retail-essential-guide-avoid-dark-data/), [beat the walkout window](https://zello.com/resources/guide/checklist-beat-the-walkout-window/), [stop losing time on your jobsites](https://zello.com/resources/guide/checklist-stop-losing-time-on-your-jobsites/), [turn labor spend into sales](https://zello.com/resources/guide/white-paper-turn-labor-spend-into-sales/), [your stores are speaking](https://zello.com/resources/guide/ebook-your-stores-are-speaking/) ## Company - [About us](https://zello.com/about-us/): why Zello focuses on frontline workers and on voice. - [Partners](https://zello.com/partners/): reseller, ISV, hardware, and referral programs. - [Careers](https://zello.com/careers/) and [careers FAQ](https://zello.com/careers/faq/) - [Press](https://zello.com/press/): press releases and coverage. - [Brand toolkit](https://zello.com/brand-toolkit/) - [Zello in Europe](https://zello.com/zello-in-europe/) - [Referral program](https://zello.com/refer/) - [Community user guidelines](https://zello.com/community/user-guidelines/) - [Release notes](https://zello.com/release-notes/): [iOS](https://zello.com/release-notes/ios/), [Android](https://zello.com/release-notes/android/), [web console](https://zello.com/release-notes/web-console/), [desktop](https://zello.com/release-notes/desktop/). ## Support And Trust - [Support centers](https://zello.com/support/): routes to the right help center. - [Support for Zello Work](https://support.zello.com/zw/): the paid business product. - [Support for friends and family](https://support.zello.com/zc/): the free consumer app. - [Trust center](https://trust.zello.com): security posture, certifications, and policies. - [Service status](https://status.zellowork.com/) - [Blog](https://blog.zello.com/) - [Zello Work console sign-in](https://zellowork.com/home.htm) ## Legal - [Legal index](https://zello.com/legal/) - [Privacy policy](https://zello.com/legal/privacy-policy/) - [Terms of service](https://zello.com/legal/terms/) - [Master subscription agreement](https://zello.com/legal/master-subscription-agreement/) - [Acceptable use policy](https://zello.com/legal/acceptable-use-policy/) - [Data processing addendum](https://zello.com/legal/data-processing-addendum/) - [Security measures](https://zello.com/legal/security-measures/) - [Business associates agreement](https://zello.com/legal/business-associates-agreement/) - [SDK terms and conditions](https://zello.com/legal/sdk-terms-conditions/) - [Cookie policy](https://zello.com/legal/cookies/) ## Optional - Localized versions of most pages are published under path prefixes: Spanish at `/es`, French at `/fr`, German at `/de`, and Italian at `/it`. For example, https://zello.com/es/pricing/. English is served without a prefix. - Zello also publishes keyword-targeted campaign landing pages under `/lp/` (for example https://zello.com/lp/best-push-to-talk-app/). These restate the product pages above for search and paid campaigns; prefer the canonical product pages for accurate detail. - [Sitemap](https://zello.com/sitemap.xml)