最后更新 / Last updated: 2026 年 8 月 14 日 / August 14, 2026 开发者 / Developer: 徐博宇 联系邮箱 / Contact: 183835370@qq.com
瞬言（InstantSpeech） 是一款 AI 口头表达教练，帮你练口才、练演讲、练普通话。录音即转文字，自动统计语速、停顿、填充词与词汇丰富度，AI 教练给出针对性改进建议。
1. 录音安全吗？会传到服务器吗？
录音音频仅存储在你的设备本地，且已排除 iCloud 备份——不会上传到任何服务器。只有你主动请求”AI 教练”分析时，转写文本（非音频）才会经加密通道发送至我们的服务器用于分析，服务器端不存储。
2. 免费版和 Pro 有什么区别？
免费版即可录音、转写并查看基础表达统计，限制为单次 3 分钟、每天 5 条录音、每月 3 次 AI 深度分析。订阅瞬言 Pro（¥12/月）解锁不限时长录音、更多 AI 教练分析次数与全部高级功能。
3. 如何恢复购买 / 取消订阅？
恢复购买：设置页 → 点击”恢复购买”即可。取消订阅：在 iPhone 的「设置 → Apple ID → 订阅」中管理，随时可取消，取消后下一计费周期前仍可使用 Pro 功能。
4. 转写不准确怎么办？
转写依赖系统语音识别。请确保：① 录音环境安静；② 麦克风权限已开启（设置 → 隐私 → 麦克风）；③ 说话清晰、语速适中。个别错字可在转写结果中手动编辑修正。
5. 如何删除我的数据？
在应用内删除任意录音、转写记录及其分析报告即可，数据将被移除（iCloud 同步副本也将一并删除）。卸载应用并删除记录即停止所有数据处理。
6. 我的数据能在多台设备间同步吗？
可以。转写文本与统计指标通过 iCloud（CloudKit）在你的设备间自动同步（需登录同一 Apple ID 且开启 iCloud 云盘）。录音音频仅存本地，不同步。
7. 支持哪些语言？
界面支持简体中文与英语；AI 教练支持中英文内容的表达分析。
8. 出现崩溃或异常怎么办？
请先尝试：重启应用 → 重启设备 → 更新至最新版本。若问题仍在，请通过下方邮箱联系我们，并附上：设备型号、iOS 版本、App 版本、问题发生步骤（必要时附截图或录屏）。
如遇任何问题、建议或反馈，欢迎邮件联系：
📮 183835370@qq.com
InstantSpeech is an AI oral-expression coach that helps you practice eloquence, public speaking, and Mandarin. Record your voice and get instant transcription, with automatic analysis of speech rate, pauses, filler words, and vocabulary richness — plus actionable tips from the AI Coach.
1. Is my recording safe? Is it uploaded to a server?
Audio recordings are stored on your device only and are excluded from iCloud backup — they are never uploaded to any server. Only when you actively request “AI Coach” analysis is the transcribed text (not audio) sent to our server over an encrypted connection for analysis; nothing is stored on the server.
2. What’s the difference between the free version and Pro?
The free version includes recording, transcription, and basic analytics, limited to 3 minutes per session, 5 sessions per day, and 3 AI coaching sessions per month. InstantSpeech Pro (¥12/month) unlocks unlimited recording time, more AI coaching sessions, and all advanced features.
3. How do I restore purchases / cancel my subscription?
Restore purchases: Settings → “Restore Purchases”. Cancel: manage your subscription in iPhone’s Settings → Apple ID → Subscriptions. You can cancel anytime; Pro benefits remain until the end of the current billing period.
4. Transcription accuracy is poor. What can I do?
Transcription relies on system speech recognition. Please ensure: ① a quiet recording environment; ② microphone permission is enabled (Settings → Privacy → Microphone); ③ speak clearly at a moderate pace. You can also manually edit typos in the transcript.
5. How do I delete my data?
Delete any recording, transcript, or analysis report in-app and it will be removed (including iCloud synced copies). Uninstalling the app and deleting all records stops all data processing.
6. Can my data sync across devices?
Yes. Transcripts and analytics sync automatically across your devices via iCloud (CloudKit) with the same Apple ID and iCloud Drive enabled. Audio stays on the device and does not sync.
7. Which languages are supported?
The UI supports Simplified Chinese and English; the AI Coach can analyze expression in both Chinese and English content.
8. The app crashed or misbehaves. What should I do?
Try: restart the app → restart your device → update to the latest version. If the issue persists, contact us via email below with: device model, iOS version, app version, and steps to reproduce (screenshots or screen recording help).
For any issues, suggestions, or feedback:
📮 183835370@qq.com