Sogool vs OfflineSMS Messenger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sogool
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Sogool is a privacy-focused secure messenger that brings secure chat, private chat, video calls, voice calls, private notes, and file protection together in one app. No phone number, email registration, or separate account is required. Sogool is designed to keep conversations and personal data as device-centered as possible. P2P Secure Chat After the minimum signaling needed to establish the initial connection, Sogool secure chat allows users’ devices to communicate directly through P2P. Messages and files are encrypted on the sender’s device first and then sent directly to the other device. Chat content is not stored on Sogool’s service servers. The first one-to-one connection uses a 16-character secret key. Once the connection is established, the other person is registered as a secure friend on the device. After that, you can start a conversation from the secure-friends list without entering the secret key again. Video Calls · Voice Calls You can make video and voice calls with secure friends. Video and audio data are protected by WebRTC’s encrypted transport together with Sogool’s additional frame encryption. You do not need to open a chat room first. Choose a secure friend directly from the video-call or voice-call menu and start the call. Video and voice calls can be used without a separate limit on the number of calls. Private Notes Keep personal memos, journals, schedules, ideas, and other important records encrypted on your own device. Create and read notes without an internet connection. Sogool also supports image and file attachments, category management, and encrypted backup and restore. Private Notes work independently and do not require secure chat or a friend connection. File Protection Protect important photos, videos, documents, and other files with AES-256-based encryption on your device. Files are not uploaded to a Sogool server for encryption or decryption, and file protection can be used offline. Large files and a variety of file formats can also be encrypted and managed. Key Sogool Features • Secure messenger with no account registration • P2P secure chat and private chat • Encrypted video calls and voice calls • P2P direct transfer after encrypting messages and files • Chat content is not stored on Sogool service servers • First connection using a 16-character secret key • Secure-friend management • Private notes and secure notes • AES-256 file encryption • Offline notes and file protection • Encrypted backup and restore • Report and block features Sogool is designed to manage more than secure chat. Video calls, voice calls, personal records, and important files can all be handled in one app. Use a secure messenger without registration, P2P private chat, video calls, voice calls, private notes, and file protection together in Sogool. Using Sogool’s privacy features to violate the rights of others or break applicable laws is prohibited. Ads may appear on some screens to support operation of the service.
OfflineSMS Messenger
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OfflineSMS is an offline-first messaging app designed to help people stay connected even when internet access is unstable. Create one-to-one conversations, chat in groups, share photos and voice messages, and keep your messages organized in a simple, familiar interface. OfflineSMS is built around a local-first experience: messages and drafts can be prepared while connectivity is limited, then synced when the connection is available again. Key features: • One-to-one and group messaging • Offline-first chat experience • Drafts and queued messages • Photo and voice message sharing • Message reactions and replies • Typing indicators and presence status • Push notifications • Clean, lightweight chat interface OfflineSMS is useful for communities, teams, students, organizations, and anyone who needs a messaging experience that remains usable when the network is not always reliable.
Screenshots
Verdict
The clearest difference is ads: OfflineSMS Messenger at none against Sogool's shown. Sogool's advantage is update cadence (every 6 days vs fortnightly). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sogool ships an update every 6 days, OfflineSMS Messenger fortnightly. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.
| Parameter | Sogool | OfflineSMS Messenger |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 56 MB | 31 MB |
| Age rating | 17+ | 4+ |
| Developer | BYUNGHEE GONG | Kafel Technologies L.L.C. |
In-app purchases
Sogool
No in-app purchases
OfflineSMS Messenger
No in-app purchases









