Letstalk IM vs 發發IM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Letstalk IM
Secure and private communication for individuals and businesses globally. Offers multiple encryption layers for messages and calls, cross-device support, and advanced chat settings. Share files, save important messages, and utilize disappearing messages for enhanced privacy.
- Multiple encryption layers
- Cross-device support
- Multi-account management
- Safe Box for message storage
- Burn after read messages
- Scheduled message sending
- Customizable chat settings
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Letstalk provides free, no advertisement communication services with multiple encryptions for individuals or businesses around the world. Others cannot get your profile, messages, or calls under multiple security encryptions. Letstalk supports cross-device, multi-account management, and the variety of chat settings. • Send a post about your life: Share files or latest news to your friends or family in the chatroom. • No more losing important messages: Save the message to the Safe Box and set a password for the security. • Account management: Log in to all your accounts on the same device and switch at any time. • Let messages disappear automatically: Send the ""Burn after read"" message or set the message preserve time, deleting the message when expired. • Send the greetings or remind someone on time: Preset the text and sending time, the message will be sent automatically when expires. • Want to express your feeling: Send a sticker or adjust the display size of text, make your messages vividly. Want to know more about Letstalk? • Letstalk: https://www.letstalk.net/ • Facebook: https://www.facebook.com/LetstalkIM/ • Instagram: https://www.instagram.com/letstalk.im/
發發IM
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數據可控，私有部署 支持獨立服務器私有化部署，數據完全掌握在自己手中，避免封號、數據外泄與第三方風險，實現真正的客戶資產沈澱。 企業級安全體系 多重風控策略、權限管理、聊天安全設置（禁言、禁互加、隱藏成員信息等），全面保護用戶隱私與社群安全環境。 全球高速 · 多節點架構 采用分布式多服務器與智能加速技術，境內外訪問穩定高速，跨地域、跨網絡環境依然保持流暢體驗。 全場景即時通訊能力 覆蓋單聊、群聊、文件傳輸、高清音視頻等全功能 IM 場景。
Screenshots
Verdict
The clearest difference is update cadence: 發發IM at every 4 days against Letstalk IM's fortnightly. On price, ads, in-app purchases and device support 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.
Letstalk IM ships an update fortnightly, 發發IM every 4 days. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.
| Parameter | Letstalk IM | 發發IM |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (101 ratings) — better | — |
| Positive reviews | 33.6% of reviews | — |
| Number of ratings | 101 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 484 MB | 122 MB |
| Age rating | 17+ | 4+ |
| Developer | Letstalk Technology Limited | SEDONA PUBLIC LIBRARY, INC. |
In-app purchases
Letstalk IM
No in-app purchases
發發IM
No in-app purchases
