1. Universal compatibility and reach: Messages: Text SMS sends standard carrier SMS/MMS that reaches any mobile phone, regardless of operating system or installed apps. Because it doesn't rely on proprietary platforms, recipients don't need to install anything, making it the most dependable method to contact people across diverse devices and networks.
2. Works without internet and on weak connections: Messages: Text SMS operates over cellular signaling, so you can send and receive messages even without Wi‑Fi or mobile data. It consumes minimal battery and bandwidth, delivers quickly on poor networks, and automatically queues messages until delivery is possible.
3. Simple, lightweight design and interoperability: The app provides a clean interface, fast search, threaded conversations, contact integration, and MMS support for photos and audio. It starts quickly on low‑end devices, uses little storage, and serves as a reliable fallback when internet‑dependent chat apps are unavailable.
1) Limited message length and media support: SMS restricts texts to 160 characters, causing splits and formatting problems; multimedia requires MMS with reduced quality, inconsistent delivery, and extra carrier limits. Modern conveniences like typing indicators, reactions, read receipts, and high-resolution file transfer are absent or poorly implemented.
2) Weak security and privacy: Standard SMS is transmitted unencrypted and can be intercepted by network attackers or accessed by carriers. Messages and backups may be exposed, and using SMS for authentication risks SIM swapping and interception, making it unsuitable for sensitive or confidential conversations.
3) Carrier dependence, cost and reliability issues: SMS delivery relies on carriers, causing delays, failed or out-of-order messages across different networks or roaming. Carriers may charge per message or for MMS, and group chats often fragment into individual threads. No reliable cross-device sync unless using vendor-specific services.
