Comparison

Proofn vs Atom Messenger

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

Head to head
About

Proofn

This app allows users to edit or delete unread emails and group messages, even after sending. It also supports inline video, photo, and voice note attachments, offering enhanced privacy and control over communications.

Highlights
  • Edit unread emails and attachments
  • Delete unread messages
  • Inline video, photo, and voice note attachments
  • Private group messaging
  • End-to-end and zero-access encryption
  • Organize messages by sender or group
Read full description

Correct your mistakes forever in unread emails, group messages, and attachments when you and your recipients create free @Proofn accounts. To err is human. That is why more people prefer to email and chat on the free Proofn app. * Create your @proofn.com email account and email your contacts. Their replies will go to your inbox. * Your emails contain signup links in the signatures so others can use Proofn. * When you email their Proofn accounts, they become your Proofn contacts. TAKE CONTROL AFTER YOU HIT “SEND”- until your recipients read your email. * Retrieve and edit any unread email and/or attachment you sent to your Proofn contacts, or delete the message entirely. * Meet deadlines. Your edits won’t change the original email timestamp or its place in a recipient’s inbox. Emails are always read as original and on time. NEVER STRUGGLE- with what to write in your email again. * Recall and update private personalized notes about any Proofn contact while you email them. CREATE AND MANAGE PRIVATE GROUPS- with your Proofn contacts. * Send group messages directly to their inboxes. * Retrieve and edit any unread group message and/or attachment you sent, or delete the group message entirely. * Meet group deadlines. Your edits won’t change the original group message timestamp or its place in their inboxes. Group messages are always read as original and on time. * Only unread emails and group messages are editable and deletable. So there’s no gaslighting risk. * Effortlessly eliminate email and group messages that impede collaboration. EXPRESS YOUR TRUE SELF- make every email and group message you send more personal and meaningful. * Add PeekviewsTM-short inline video attachments that silently autoplay to your emails and group messages. * Take photos on Proofn to add as inline attachments in your emails and group messages. * Record and attach voice notes to your emails and group messages. * Add or remove inline/regular attachments and voice notes (including PeekViews) in any unread email and group message you sent. COMMUNICATE PRIVATELY AND MORE EFFICIENTLY -when you email or chat with individuals and groups. * Want to chat? Toggle chat mode. * Swipe through messages seamlessly. * Convert emails and group messages to easy-to-print PDFs. * Proofn® organizes emails by the sender's name, group name, and non-Proofn email address, so it’s easier to find the message you’re looking for. * Create new folders for related emails and group messages so they are easier to find. * Your communications are always safe with both end-to-end and zero-access encryption for unmatched privacy.

About

Atom Messenger

Read full description

Atom is the integrated messaging solution for organizations or individuals that require maximum security. The combination of Atom's proven security architecture and absolute data ownership create an independent chat environment that is unmatched in terms of confidentiality. PRIVACY AND ANONYMITY Atom is designed to generate the least amount of metadata possible without keeping conversations inside the phone. Each user is anonymous and registration takes place only through direct invitation from the administrator of the single node. SECURE ENCRYPTION Atom performs full end-to-end encryption of all communications exchanged. Only the intended recipient, and No one else, will be able to read your messages. Encryption keys are generated and securely stored on user devices to prevent copying or backdoor access. FULL FEATURED Atom is not only a messenger for encrypted and confidential communications: it is also a versatile and feature-rich tool. • Make voice calls • Compose texts and send voice messages • Send any type of file (pdf animated gif, mp3, doc, zip, etc...) • Create group chats, add and remove members at any time • Profile security settings for cancellation due to inactivity or for managing the self-preservation of communications • Settings to define messages that self-destruct on reading or timed • Verify a contact's identity by scanning their personal QR code • Use Atom as an anonymous instant messaging tool SELF HOSTED SERVERS Atom messenger has a decentralized infrastructure where individual servers are isolated from each other. The application allows you to connect to multiple nodes that you can access by invitation or as an administrator (who purchases and manages an instance of the platform) FULL ANONYMITY Each Atom user receives a random ATOM ID that identifies him. No phone number or email address is required to use Atom. This exclusive feature allows you to use Atom completely anonymously: you don't need to give private information and you don't need to open an account. NO ADVERTISING, NO TRACKER Atom is not funded by advertising and does not collect user data. ASSISTANCE/CONTACTS If you have any questions or problems, check out our website: https://atomapp.cloud

Screenshots

Proofn4 screens
Atom Messenger4 screens

Verdict

The call

The clearest difference is iOS requirement: Atom Messenger at 16.0 against Proofn's 26.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Proofn ships an update every 4 weeks, Atom Messenger every 3 weeks. The most recent releases landed on June 20, 2026 and September 6, 2026 respectively.

Scorecard1 real difference · 8 level
Proofn versus Atom Messenger: the parameters behind the verdict, then further details
ParameterProofnAtom Messenger
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.016.0 — better
Further details — not scored
Size35 MB42 MB
Age rating17+17+
DeveloperMyabuy, LLCigloocy s.r.l.

In-app purchases

None

Proofn

No in-app purchases

None

Atom Messenger

No in-app purchases

Questions

Is Proofn free?
Proofn is free to download, with no in-app purchases.
Is Atom Messenger free?
Atom Messenger is free to download, with no in-app purchases.
Do Proofn or Atom Messenger have ads?
Neither Proofn nor Atom Messenger shows ads.
Which is updated more often, Proofn or Atom Messenger?
Proofn ships an update every 4 weeks, and Atom Messenger every 3 weeks. Most recently, Proofn was updated on June 20, 2026 and Atom Messenger on September 6, 2026.

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