Comparison

Knock Messaging vs Rosetta Messenger

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

Head to head
About

Knock Messaging

Features
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Knock Messaging lets you send messages and media through iMessage. Recipients can instantly view shared content using an App Clip or the full app. The App Clip provides a fast and lightweight way to preview messages without installing the full app. Knock Messaging is designed for simple, direct message sharing with a seamless experience across supported devices.

About

Rosetta Messenger

Features
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Rosetta is a private messenger built for secure everyday communication. Create an account without a phone number, protect access with your recovery phrase, and keep your chats synced across devices. Rosetta supports private conversations, group chats, photos, videos, files, voice messages, replies, forwards, and fast message search. What you can do in Rosetta: - Chat privately with end-to-end encrypted messages - Create multiple accounts whenever you need them - Sign in without using a phone number - Share photos, videos, files, and voice messages - Create groups and manage members - Reply, forward, copy, and organize messages - Restore access with your recovery phrase Rosetta keeps messaging simple, private, and focused on the people you talk to.

Screenshots

Knock Messaging4 screens
Rosetta Messenger4 screens

Verdict

The call

The clearest difference is device support: Knock Messaging at 3 against Rosetta Messenger's 1. Knock Messaging also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Knock Messaging ships an update every 5 days, Rosetta Messenger weekly. Both last shipped on October 25, 2026.

Scorecard2 real differences ยท 4 level
Knock Messaging versus Rosetta Messenger: the parameters behind the verdict, then further details
ParameterKnock MessagingRosetta Messenger
PriceFreeFree
Update frequencyEvery 5 days โ€” betterWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size36 MB74 MB
Age rating4+17+
DeveloperBaseline Polls Limited Liability CompanyVilis Luse

In-app purchases

None

Knock Messaging

No in-app purchases

None

Rosetta Messenger

No in-app purchases

Questions

Is Knock Messaging free?
Knock Messaging is free to download, with no in-app purchases.
Is Rosetta Messenger free?
Rosetta Messenger is free to download, with no in-app purchases.
Do Knock Messaging or Rosetta Messenger have ads?
Neither Knock Messaging nor Rosetta Messenger shows ads.
Which is updated more often, Knock Messaging or Rosetta Messenger?
Knock Messaging ships an update every 5 days, and Rosetta Messenger weekly. Most recently, Knock Messaging was updated on October 25, 2026 and Rosetta Messenger on October 25, 2026.

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