Comparison

Atom Messenger vs OffGrid

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

Head to head
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

About

OffGrid

Communicate privately with end-to-end encrypted messaging. This app collects no user data, requires no personal information for signup, and prevents screenshots. A killswitch feature erases all conversations.

Highlights
  • End-to-end encryption
  • No data collection
  • No ads or trackers
  • No screenshots
  • Killswitch feature
  • No personal info required
Features
Read full description

Your messages are never stored. Not with us. Not with you. Chat in real-time. • No phone number, email, or social • No data collection, no ads, no trackers • No screenshots or screen recordings • No access to your camera, contacts, or location Killswitch erases everything. End-to-end encrypted.

Screenshots

Atom Messenger4 screens
OffGrid4 screens

Verdict

The call

The clearest difference is iOS requirement: Atom Messenger at 16.0 against OffGrid's 18.0. 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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 21, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 8 level
Atom Messenger versus OffGrid: the parameters behind the verdict, then further details
ParameterAtom MessengerOffGrid
PriceFreeFree
Rating—5.0 (5 ratings) — better
Number of ratings—5 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size42 MB52 MB
Age rating17+17+
Developerigloocy s.r.l.Vetra Labs Inc.

In-app purchases

None

Atom Messenger

No in-app purchases

None

OffGrid

No in-app purchases

Questions

Is Atom Messenger free?
Atom Messenger is free to download, with no in-app purchases.
Is OffGrid free?
OffGrid is free to download, with no in-app purchases.
Do Atom Messenger or OffGrid have ads?
Neither Atom Messenger nor OffGrid shows ads.
Which is updated more often, Atom Messenger or OffGrid?
Atom Messenger ships an update every 3 weeks, and OffGrid every 3 weeks. Most recently, Atom Messenger was updated on September 21, 2026 and OffGrid on October 9, 2026.

Other comparisons