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Signal vs Zello (2026): which should you pick?

As of Nov 13, 2026, Signal grades higher than Zello: 3.2 against 2.2 out of 4.0.

Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA

Signal grades higher on value for money, the free plan and ease of use. They get the same grade on features and platforms.

Price, platforms and features side by side. The table says where each price was read and when.

Signal

Nonprofit messenger with end-to-end encrypted chats and calls

Free

Zello

Push-to-talk voice messaging for frontline teams

Free trial · from $6.80/mo

Which one is for you

Pick Signal if

  • Fits if you want private messaging with friends, family or a small group
  • Works for people who want no ads and no tracking

Look elsewhere if

  • Skip it if you need a workplace tool, as it has no channels, roles or admin console
  • Not for you if you want a desktop app on its own, since it needs linking from a phone
  • Too light for support, because no paid or business tier is listed
  • Watch out: no integrations or bots are listed, so it will not plug into your other tools

Pick Zello if

  • Fits if you run drivers, crews or shifts that need to talk at the push of a button
  • Works for teams that want location tracking next to voice

Look elsewhere if

  • Pricey if you want transcription, translation, AI or message storage, which need Plus at $12.75
  • Skip it if you want a free plan, since there is only a 14-day trial
  • Watch out: SSO, MDM sign-in and on-premise servers are Enterprise only, sold through sales
  • Skip it if you want a browser version, as none is listed

How we grade them

3.2GPASignalVery good2.2GPAZelloFair
Value for money
AFree outright with no ads or trackers, paid for by grants and donations.
CCore is $6.80 per user a month billed yearly, near the $7 middle. Plus is $12.75, right at the top quarter.
Free plan and trial
AThe whole app is free, with no cap and no paid tier to be pushed toward.
C14-day trial with no card, and no free plan. First responders may qualify for free use.
Features
CText, voice, files, group chats and calls. For a team-chat tool it has no channels, roles or admin controls.
CLive voice, channels, an admin console, location and an API. Storage, transcription, translation and panic buttons need Plus.
Ease of use
BNo rating on record, but you install it and start texting with nothing to set up.
CNo rating on record. An admin sets up the network, channels and users.
Platforms and integrations
BiOS, Android, Windows, Mac and Linux. No web app, and desktop depends on a linked phone.
BiPhone, Android, Windows and Mac, with an API and SDK. No web version.
Best forprivate one-to-one and group messagingpush-to-talk for frontline teams

The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Signal and Zello. How we grade

Price against what you get

Signal has no paid plan and scores 2.7 out of 4 on features, ease of use and platforms. Zello starts at $6.80 a month for each person and scores 2.3.

Signal scores higher and starts $6.80 a month lower. Of the other team communication apps on the chart, none scores higher than Signal for less, and 18 score higher than Zello for less.

Features, ease of use and platforms, averaged

D1.0C2.0B3.0A4.0Free$1$2$5$10$20$50$100$200$500More for lessCosts more, scores moreCosts less, scores lessCosts more, scores lessSignalZello

What paid plans start at, a month (each step along is roughly double) →

  • The best score at each price
  • Has a free plan
  • No free plan
The full chart of team communication apps, and the best at every price

Where they differ

  • Signal is end-to-end encrypted, according to its own site.
  • Signal also covers video calls.
  • Zello also covers transcription.
In commoniOSAndroidWindowsmacOSTeam chat

At a glance

SignalZello
PricingFreeFree trial
Starts atFree$6.80 per user / month, billed yearly ($8.00 billed monthly)
Free planNoneNone
Free trialNone listed14 days free, no credit card required.
macOS
Windows
Linux
iOS
Android
Made bySignal Technology FoundationZello Inc.
Price read fromsignal.orgzello.com
CheckedNov 12, 2026Nov 13, 2026

Worth knowing

Signal

  • Built as a personal messenger: the pages describe no admin console, roles, channels or workspace controls.
  • The desktop apps work only after Signal is installed and linked from a phone.
  • No paid plan or business support tier is listed; the app is funded by donations.

Zello

  • Transcription, translation, AI features, message storage and panic buttons need the Plus plan.
  • SSO, MDM sign-in and on-premise servers are Enterprise only, sold through sales.
  • The pricing page says Zello is free for qualifying first responders.
  • Built around voice on phones and desktops; there is no browser version in the platform list.

Key features

Signal

End-to-end encryption by default
Signal says every message and call is end-to-end encrypted using the open source Signal Protocol, with no optional secure mode.
Text, voice and files
Send text, voice messages, photos, videos, GIFs and files over the phone's data connection instead of SMS or MMS.
Voice and video calls
Make voice and video calls to other Signal users with no long-distance charges.
Group chats
Group chats keep family, friends or coworkers in one conversation.
Desktop apps
Apps for Mac, Windows and Linux; Signal must first be installed on a phone before a desktop app can be used.
No ads or tracking
Signal says it carries no ads, no affiliate marketers and no tracking, and cannot be acquired by a major tech company.

Zello

Live push-to-talk
Hold a button to send voice live to one person or a channel, with texts and photos in the same conversation.
Channels and admin console
Unlimited channels on every plan, managed from a console. Multiple admins, sub-admin permissions and bulk import are listed in the plan comparison.
Location tracking
Real-time location on a map from Core; historical breadcrumb tracking and Google Maps traffic are in the comparison table for higher plans.
Transcription and translation
Plus converts voice messages to text and translates them. The vendor also lists AI summaries and a knowledge-base assistant.
Dispatch tools
A Dispatch Hub for PC and Mac, a shared call queue and channel analytics for teams with a dispatcher.
Emergency alerts and Message Vault
Panic buttons send a channel-wide alert with audio and location; Message Vault stores communications in the cloud for review.

Plans

Signal

  • Free$0

    The whole app is free, with no ads or trackers; development is funded by grants and donations.

Zello

  • Core$6.80

    per user / month, billed yearly ($8.00 billed monthly)

    Live voice, text and photo messages, unlimited channels, a management console, real-time location tracking and API and SDK access.

  • Plus$12.75

    per user / month, billed yearly ($15.00 billed monthly)

    Everything in Core, plus message storage, panic buttons, transcriptions and translations, AI summaries, an AI assistant and location history.

  • EnterpriseCustom

    Sold through sales. Adds an account manager, SSO and MDM sign-in, automated user provisioning, on-premise server options and priority support.

Ways to pay less

Signal

No public discounts listed.

Zello

  • Annual discount

    15% off with yearly billing

    The pricing page shows a Bill yearly toggle marked -15%: Core is $6.80 yearly against $8.00 monthly.

Common questions

Which is cheaper, Signal or Zello?

As of Nov 13, 2026, Signal is cheaper to start with: it is free, against $6.80 a month for each person for Zello. Signal is free, and Zello starts at $6.80 per user / month, billed yearly ($8.00 billed monthly).

Which has a free plan, Signal or Zello?

As of Nov 13, 2026, only Signal has a free plan. Zello does not, though it has a free trial.

Which platforms do Signal and Zello run on?

As of Nov 13, 2026, only Signal lists a Linux app. Both list macOS, Windows, iOS and Android apps. A platform missing from a listing is one its maker's pages did not mention.

More comparisons

How this page was made

  • The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
  • The grades are our own, from each tool’s review or report card. The GPA is their average.
  • Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
  • The differences and the answers to the questions are worked out from those listings.
How we review and grade