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imo alternatives: 4 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave imo: ads in the app, and less transparency about ownership and data use. We ranked 4 alternatives by how directly each one replaces imo, then by reviews, real visits and how recently each app's facts were checked against its own website. WhatsApp currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Signal logoSignalFreeYesWindows, macOS, Linux +25 of 557.2
  1. Signal logo

    1. SignalTop pick

    Best for: Anyone who wants the strongest mainstream privacy without giving up a familiar chat app

    FreeOpen sourceWindows, macOS, Linux, iOS, Android

    57.2

    score / 100

    Why switch from imo

    Encrypted calls without ads from a nonprofit.

    Pros

    • Everything end-to-end encrypted by default, including groups
    • Collects almost no metadata
    • No ads, tracking or paid tier; open source

    Cons

    • Needs a phone number to register
    • Desktop app only works linked to a phone
    • Smaller network than WhatsApp in most countries
    Visit Signal Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Signal a good imo alternative?

    Verified facts

    5 of 5 verified
    License
    AGPL-3.0
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Organisation
    Independent nonprofit
    Checked Oct 25, 2026signal.org(opens source in a new tab)
    Ads and tracking
    None
    Checked Oct 25, 2026signal.org(opens source in a new tab)
    End-to-end encryption
    Always on
    Checked Oct 25, 2026signal.org(opens source in a new tab)
    Desktop app
    Requires Signal on your phone
    Checked Oct 25, 2026signal.org(opens source in a new tab)

The best imo alternative for…

The highest-ranked app in this list for each need.

WhatsApp logo

Best imo alternative for most people

WhatsApp

Larger network with encrypted calls that also work on modest connections.

Signal logo

Best imo alternative for a free option

Signal

Encrypted calls without ads from a nonprofit.

Viber logo

Best imo alternative for a free plan you can upgrade

Viber

Free calls plus Viber Out for cheap calls to regular phone numbers.

Signal logo

Best imo alternative for open source

Signal

Encrypted calls without ads from a nonprofit.

Telegram logo

Best imo alternative for Mac

Telegram

Ad-free personal chats with good call quality and cloud sync.

WhatsApp logo

Best imo alternative for Windows

WhatsApp

Larger network with encrypted calls that also work on modest connections.

Viber logo

Best imo alternative for Linux

Viber

Free calls plus Viber Out for cheap calls to regular phone numbers.

WhatsApp logo

Best imo alternative for iPhone and Android

WhatsApp

Larger network with encrypted calls that also work on modest connections.

WhatsApp logo

Best imo alternative for working in the browser

WhatsApp

Larger network with encrypted calls that also work on modest connections.

imo alternatives: common questions

What is the best alternative to imo?

WhatsApp ranks first right now. Larger network with encrypted calls that also work on modest connections. Viber and Telegram follow it in our ranking.

Is there a free alternative to imo?

Yes. WhatsApp (free), Viber (free plan + paid), Telegram (free plan + paid) and Signal (free) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to imo?

Yes: Signal.

Which imo alternatives work on Linux?

Viber, Telegram and Signal run on Linux.

Why do people switch from imo?

The complaints we hear most: ads in the app; less transparency about ownership and data use; small user base in North America and Europe.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces imo, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.