FlowCast Privacy Policy
Effective: 2026-05-18 · Last updated: 2026-05-18
This is the privacy policy for FlowCast, an iPhone app published by ZPresso LLC. It describes what data the app touches, where that data goes, and what your rights are.
The short version: nothing leaves your phone.
What FlowCast collects
Nothing, in the privacy-policy sense of “collects.”
FlowCast does not have a server. There is no account, no login, no user profile, no analytics service, no advertising SDK, no crash reporter, no third-party tracker. The app makes no network calls during normal use.
What FlowCast accesses on your device
To do its job, FlowCast needs your permission to use a few iOS features. iOS asks you for each one the first time the app needs it. You can change any of these in Settings → FlowCast at any time.
Microphone
FlowCast records your voice when you ask it to (screencast with mic enabled, or Vlog mode). The audio is written directly to a file on your device and never transmitted anywhere.
Camera
FlowCast records your front and/or back camera in Vlog mode. The video is written directly to a file on your device and never transmitted anywhere.
Photo Library
Only when you tap “Save to Photos” on a recording, FlowCast uses the “add only” Photos permission to write the file into your camera roll. FlowCast does not read your existing photos or videos.
Speech Recognition
FlowCast transcribes the first sentence you speak in each new recording so it can rename the file with something meaningful (instead of Screencast_2026-05-18_14-23-45.mp4). On devices and languages that support it, the transcription runs entirely on-device. On older devices or languages where on-device recognition isn't available, Apple's Speech framework may transmit a short audio snippet to Apple's servers for transcription. That snippet is governed by Apple's privacy policy and is never seen by FlowCast or ZPresso LLC.
Screen recording (ReplayKit broadcast)
FlowCast uses Apple's ReplayKit framework for full-screen recording. The frames flow through Apple's broadcast extension API into FlowCast's own bundled extension process, which writes the recording to a file on your device. The frames never leave your device.
Background audio
FlowCast declares the “audio” background mode so the microphone can keep recording while you switch to another app during a screencast. This audio is still written to a local file and never transmitted.
Where your recordings live
In two folders on your iPhone:
- App Group container / Recordings — staging folder used briefly during recording.
- Documents / Recordings — the user-visible folder. Visible to the iOS Files app under On My iPhone → FlowCast → Recordings, where you can delete, move, rename, or share any recording at any time.
When you delete a recording in FlowCast (or in Files), it is removed from your iPhone. There is no copy anywhere else.
Audio processing tools
- Noise reduction — performed by Mozilla's open-source RNNoise neural network running entirely inside the FlowCast app process on your device. The model weights are bundled into the app. No audio is transmitted anywhere during noise reduction.
- Silence detection — performed locally via Apple's AVFoundation.
- Auto-rename — see “Speech Recognition” above.
Children's privacy
FlowCast does not knowingly collect any data from anyone, including children under 13.
Changes to this policy
If we ever add a feature that involves data leaving your device (e.g., a future cloud sync), this policy will be updated and the change will be highlighted in the app's release notes. Until then, this policy describes the entire universe of data FlowCast touches.
Contact
ZPresso LLC engrmoshbari@gmail.com