Threema Alternatives for Private Messaging

Threema is alive and still Swiss. The paid messenger needs no phone number or email to sign up, its apps are open source, and its servers stay in Switzerland after ownership passed from Afinum to Comitis Capital at the start of 2026. The Threema pricing page shows prices in CHF, EUR or USD depending on your country: the private app is a one-time 6.00, and Threema Work costs 3.00 (Core) or 5.00 (Professional) per user a month, billed yearly. The US App Store lists the app at $6.99.

People leave Threema for three reasons: friends will not pay for it, the desktop app is still a beta that needs the phone app installed, or a company wants something it can self-host or federate. The eight picks below are ordered for the first group, then for teams, and end with the two mass-market apps your contacts most likely already have.

Prices below are as of November 6, 2026. Our method is on How we review tools.

Quick comparison

Signal

Signal is the usual landing spot for Threema users who are tired of convincing friends to pay. It costs nothing, is run by a US nonprofit with no ads or trackers, and Wire's Proteus protocol is based on it. Desktop apps exist for Windows, Mac and Linux.

The trade is identity. Signal still requires a phone number to register, although usernames added in February 2024 let you hide that number from people who have not saved it. Since September 2025 the Signal secure backups plan stores text plus the last 45 days of media for free, or up to 100 GB for $1.99 a month. Our Signal alternatives page goes the other direction.

Best for: Private one-to-one and group chats with people who will only install a free app.

Pricing:

• Free
• Secure backups: free tier, or $1.99 a month for up to 100 GB of media

Watch out for:

• A phone number is mandatory at sign-up, the main thing Threema avoids.
• A 2026 phishing wave posing as Signal Support took over accounts of politicians and journalists; Signal staff never ask for codes or PINs.

Official site: Signal. Our listing: Signal.

SimpleX Chat

Threema gives you a random ID instead of a phone number. SimpleX goes further and gives you none: contacts connect through one-time links or QR codes, and the relays that pass messages have no user identifiers to log. The code is AGPLv3, and Trail of Bits audited it in 2022 and 2024.

It moves quickly. Version 6.5 in April 2026 added channels in beta, and the company raised money through equity crowdfunding on Wefunder in August 2026. The SimpleX FAQ says the desktop app works by linking your mobile profile on the same network, and that iOS notifications are harder to get right than on Android.

Best for: Users who want the least metadata possible and can live with a younger app.

Pricing:

• Free
• Optional supporter badges with larger file limits; no standalone price listed

Watch out for:

• Received files expire from relays after two days, and iOS push notifications are less reliable than Threema's.

Official site: SimpleX Chat.

Session

Session matches Threema on anonymous sign-up, with no phone or email, and adds onion routing so your IP address is hidden from the nodes that store messages. A Swiss foundation, the Session Technology Foundation, now runs it.

Its cryptography is weaker in one place that matters. The Session FAQ says there is no perfect forward secrecy until Protocol V2, and groups top out at 100 members. Session Pro, from $2.99 a month, raises the message length to 10,000 characters and adds unlimited pins.

Best for: People who want anonymity on the network level, not only an anonymous ID.

Pricing:

• Free
• Session Pro: from $2.99 a month

Watch out for:

• No forward secrecy yet, so a stolen key could expose older messages.
• A donation appeal says funding covers critical infrastructure and a smaller team into 2027.

Official site: Session.

Olvid

A French counterpart to Threema, Olvid asks for no phone number, email or name and never reads your address book. Contacts are added by scanning a code or through a mutual contact, so there is no central directory to leak.

It also carries a government stamp: Olvid passed France's ANSSI CSPN certification in 2021, and a November 2023 circular told French government members to use it. The Olvid App Store listing shows paid Individual options at $4.49 and $44.90 and Family options at $5.99 and $59.90; receiving calls stays free.

Best for: European users and public bodies who want a certified messenger without a phone number.

Pricing:

• Free to install and message
• Individual: $4.49 or $44.90 in-app purchase
• Family: $5.99 or $59.90 in-app purchase

Watch out for:

• The client is AGPL but the server is proprietary, and placing video calls needs a paid option.
• No Linux app.

Official site: Olvid.

Wire

Wire is the natural stop for Threema Work customers. It signs up with an email address, runs on every desktop and in a browser, and its clients are GPL while the server is AGPL. A version for German federal use, Wire Bund, is approved for classified-restricted material until the end of 2028.

The Wire pricing page lists a free plan for up to five people and eight devices, then an SMB plan at EUR 7.45 per person per month billed yearly, or EUR 8.94 billed monthly. Wire is owned by Schwarz Digits, part of the group that owns Lidl.

Best for: Companies that want guest rooms, an admin console and a browser client.

Pricing:

• Free: up to 5 people, 8 devices
• SMB: EUR 7.45 per person a month billed yearly, or EUR 8.94 billed monthly
• Enterprise: contact sales

Watch out for:

• The free plan has no conference calls with more than two people, and Wire's servers keep contact lists.

Official site: Wire.

Element

Element is the main app for Matrix, an open, federated protocol. Threema OnPrem gives one organisation a private server. Matrix goes further: any organisation can run a homeserver that talks to everyone else's, and new rooms are end-to-end encrypted by default. NATO, the Bundeswehr and UK government bodies appear among Element's customers.

The Element pricing page keeps a free Community edition for 1 to 100 non-professional users, self-hosted under AGPL. Enterprise is priced per seat from 100 users with no public rate.

Best for: Organisations that want to own the server and federate with partners.

Pricing:

• Personal app: free
• Community (self-hosted, 1 to 100 users, non-professional): free
• Enterprise: per seat per month, contact sales

Watch out for:

• Your homeserver stores message history and account details, so a public server sees more metadata than Threema's.

Official site: Element.

Telegram

Telegram is what many people mean by a messenger that is not WhatsApp. Groups hold up to 200,000 members, channels have no cap, bots are easy to build, and there are apps for every desktop plus the web.

It is not a privacy pick. The Telegram FAQ confirms that cloud chats and groups use server-client encryption, and only one-to-one Secret Chats are end to end. Our Telegram alternatives page covers the trade-offs in detail.

Best for: Communities and broadcast channels where reach matters more than encryption.

Pricing:

• Free
• Telegram Premium: price varies by country, shown in the app

Watch out for:

• Group chats are never end-to-end encrypted, and Secret Chats do not sync across devices.

Official site: Telegram. Our listing: Telegram.

WhatsApp

If the real reason to leave Threema is that nobody you know uses it, WhatsApp is the practical answer. Personal messages and calls are end-to-end encrypted, it is free, and usernames that hide your phone number began rolling out in June 2026.

The cost is metadata. The WhatsApp privacy policy lists usage, device and connection data, including IP address, and says it shares information with other Meta companies, including for ads. Since June 2025 the Updates tab also carries ads.

Best for: Everyday chats with family and friends who already have it.

Pricing:

• Free

Watch out for:

• Owned by Meta and tied to your phone number; the opposite of Threema's data model.

Official site: WhatsApp.

How to choose

When to stay with Threema

Stay if you value Threema's mix: anonymous IDs, Swiss jurisdiction, open-source apps and a single payment with no subscription. It also decided in July 2026 against interoperability with WhatsApp under the EU Digital Markets Act, arguing it would weaken privacy, so it will not become a bridge to bigger networks. Desktop users can now run the 2.0 beta on up to two computers, and it keeps working with the phone switched off once linked.

Frequently asked questions