Comparison

Signal vs Comera

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Signal

This messaging app prioritizes your privacy with strong end-to-end encryption for all communications. It offers free text, voice, and video messaging, including group chats and disappearing stories, all without collecting your data.

Highlights
  • End-to-end encrypted messaging
  • Free voice and video calls
  • Group chats up to 1000 people
  • Disappearing Stories
  • File sharing
  • Admin controls for groups
Features
Read full description

Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your communication completely private. • Send texts, voice messages, photos, videos, GIFs, and files for free. Signal uses your phone’s data connection, so you avoid SMS and MMS fees. • Call your friends with crystal-clear encrypted voice and video calls. Group calls supported for up to 50 people. • Stay connected with group chats up to 1,000 people. Control who can post and manage group members with admin permission settings. • Share image, text, and video Stories that disappear after 24 hours. Privacy settings keep you in charge of exactly who can see each Story. • Signal is built for your privacy. We know nothing about you or who you’re talking to. Our open source Signal Protocol means that we can’t read your messages or listen to your calls. Neither can anyone else. No back doors, no data collection, no compromises. • Signal is independent and not for profit; a different kind of tech from a different kind of organization. As a 501c3 nonprofit we are supported by your donations, not by advertisers or investors. • For support, questions, or more information please visit https://support.signal.org/ To check out our source code, visit https://github.com/signalapp Follow us on Twitter @signalapp and Instagram @signal_app

About

Comera

Connect with loved ones through secure one-to-one and group chats, voice, and video calls. Share photos, videos, documents, and locations with end-to-end encryption for complete privacy. Enjoy unlimited, ad-free communication worldwide.

Highlights
  • End-to-end encrypted calls and messages
  • Unlimited free voice and video calls
  • Group chats for multiple users
  • Share photos, videos, documents, and locations
  • Ad-free communication experience
  • Contact syncing for easy access
Features
Read full description

Comera is a free-messaging app that allows you to talk to your friends and family via one-to-one chats, voice calls, and video calls through connectivity over mobile data or Wi-Fi. It also enables you to connect through group chats and lets you share photos, videos, documents, locations, and a whole lot more. Why Comera? - FREE CALLS & MESSAGES: No limitations on the messages and calls, including audio and video calls, placed internationally. Talk FREE for unlimited hours. - GROUP CHATS: Communicate with multiple people at once for even faster communication - NO ADS: A seamless communication experience without the annoying ads. - SAFE AND SECURE: Comera is embedded with features like End-to-End Encryption to keep your messages and calls completely safe and private. - TALK ANYWHERE: Talk to your friends and family across the world. No need to worry about the time of the day or roaming charges. - QUICK & SECURE ACCESS: Start using Comera by entering your phone number, and getting it verified through OTP. No need to log in every time you want to use the app. - CONTACT SYNCING: No need to build a separate contact list. Easily embed the contact list of your phone with Comera, and get on messaging, sharing, and calling right away. - SHARE MULTIMEDIA: Photos, videos, documents, locations, and so much more to share? Comera supports all your multimedia-sharing needs. - Emojis: With exciting Emojis and Stickers, make your conversations much more fun. We are actively seeking to make Comera better for you. For queries, customer support and feedback, contact us at info@mycomera.com

Screenshots

Signal4 screens
Comera4 screens

Verdict

The call

The clearest difference is in-app purchases: Comera at none against Signal's 1. Signal's advantage is ratings volume (1.1M vs 5.3K) and review sentiment (68% vs 53%). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Signal sells 1 in-app purchase, starting at $1.99 per month. Comera asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Signal against 4.6 for Comera. That said, the two scores are not equally well evidenced: Signal has 1.1M ratings behind it against 5.3K, so its average is the more settled of the two. Written reviews are what separate them: 68% of Signal's written reviews are positive against 53% of Comera's.

UpkeepUpdate frequency

Signal ships an update weekly, Comera every 8 days. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

Scorecard5 real differences · 6 level
Signal versus Comera: the parameters behind the verdict, then further details
ParameterSignalComera
PriceFreeFree
Rating4.7 (1.1M ratings) — better4.6 (5.3K ratings)
Positive reviews67.7% of reviews — better52.9% of reviews
Number of ratings1.1M — better5.3K
Update frequencyWeekly — betterEvery 8 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#9 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size239 MB501 MB
Age rating12+12+
DeveloperSignal Messenger, LLCComera Technology LLC

Customer experience

Signal

All ratings1,105,850 ratings
Positive93.4%
Neutral3.2%
Negative3.5%
Written reviews3,547 reviews
Positive67.7%
Neutral8.0%
Negative24.4%

Comera

All ratings5,239 ratings
Positive89.8%
Neutral3.2%
Negative6.9%
Written reviews276 reviews
Positive52.9%
Neutral10.1%
Negative37.0%

User reviews

Signal

From 1.1M App Store ratings

What we love

  • 🔒 Security and privacy
  • 👍 Ease of use
  • 🚀 Great call quality
  • 🚀 Smooth and pleasant user interface
  • 🔒 End-to-end encryption

Room to improve

  • 🐛 Delayed message delivery
  • 🐛 Inconsistent image/video quality
  • 🐛 Buggy call functionality
  • 🐛 Inability to edit sent messages
  • 🐛 Unreliable notifications

Comera

From 5.3K App Store ratings

What we love

  • 👍 Fantastic conversations and memories
  • 👍 Prefect app
  • 👍 Nice app
  • 👍 5 star experience
  • 👍 Better than any other app

Room to improve

  • 🐛 Cannot add contact
  • 🐛 Rude and uneducated staff
  • 🐛 A lot of advertisement
  • 🐛 Always on top issue
  • 🐛 OTP problem

Bugs and requests

Signal

Reported bugs

5 issues
  • Problem retrieving data, resulting in lost message history
  • Keyboard covering the current conversation
  • Inconsistent behavior when attaching photos/videos
  • Scrolling issues when reading through messages
  • Inability to recover message history after device change

Requested features

10 requests
  • Add filters and customization options
  • Allow adding music to stories
  • Implement a sticker store
  • Add ability to pin messages in group chats
  • Allow new members to view previous group messages
Show 5 more
  • Make group background changes visible to all
  • Implement a backup/restore feature
  • Add option to move sent messages to the left side
  • Bring back pause and skip functions for longer audio messages
  • Allow batch deletion of group messages

Comera

Reported bugs

18 issues
  • Cannot add contact
  • Rude and uneducated staff
  • A lot of advertisement
  • Always on top issue
  • OTP problem
Show 13 more
  • Dropped calls
  • Font size too small
  • Cannot sign in due to OTP issue
  • Camera opens randomly during voice calls
  • Unable to verify phone number
  • Bad video call quality
  • No sound on speakerphone
  • Missed calls don't show
  • Last seen doesn't work well
  • Bluetooth issues on iOS 16
  • Can't register
  • Calls stopped working on mobile data
  • Delayed and disappearing messages

Requested features

5 requests
  • iPad version
  • Group calls
  • Screen recording without sharing screen
  • Lighter theme option
  • Group/conference call function

In-app purchases

1 purchases

Signal

Subscriptions1
  • Signal Secure Backups$1.991 Month
None

Comera

No in-app purchases

Questions

Is Signal free?
Signal is free to download, with in-app purchases available.
Is Comera free?
Comera is free to download, with no in-app purchases.
Which has better reviews, Signal or Comera?
Signal is rated higher. Signal averages 4.7 out of 5 from 1.1M ratings, while Comera averages 4.6 from 5.3K ratings.
Do Signal or Comera have ads?
Neither Signal nor Comera shows ads.
Which is updated more often, Signal or Comera?
Signal ships an update weekly, and Comera every 8 days. Most recently, Signal was updated on October 29, 2026 and Comera on October 26, 2026.

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