TrainTT vs 首信App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrainTT
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1.安全加密： 使用端到端全方位算法保障于安全防范。 2.简介体验：专注即时通讯，提供稳定的核心基础功能。 3.保护隐私:云端不保存聊天记录，可关闭已读回执，同时提供阅后即焚和销毁账号等保护用户隐私。 4.聊天: 提供文本，语音，图片，视频，文件，表情等聊天方式。
首信App
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一款安全私密，免费的即时聊天软件，由单聊、群组组成；方便用户提供日常交流和沟通，丰富的文字、图片、语音、自由切换，沟通再无距离！ 主要功能： 由单聊、群聊、朋友圈组成，丰富的文字、图片、语音、自由切换，为用户提供日常交流和沟通，让沟通再无距离。
Screenshots
Verdict
TrainTT and 首信App are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.
| Parameter | TrainTT | 首信App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 49 MB | 78 MB |
| Age rating | 17+ | 4+ |
| Developer | Qian Yun Network Service Co., Ltd. | Guangzhou Huashi Network Technology Co., Ltd |
In-app purchases
TrainTT
No in-app purchases
首信App
No in-app purchases
