The short version
RawToHEIC ships with one third-party Swift package — GRDB.swift, used as the on-device SQLite engine for the conversion queue. Every other framework is Apple's. There are no analytics SDKs, no advertising SDKs, and no third-party libraries that make network requests.
1. Third-party Swift packages
GRDB.swift
A toolkit for SQLite databases. RawToHEIC uses GRDB to manage the on-device conversion queue (batches, items, retries) inside the app's App Group container. GRDB never opens a network socket.
Copyright (C) 2015-2025 Gwendal Roué
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
2. Apple platform frameworks
The bulk of RawToHEIC is built on Apple's first‑party frameworks. They are part of iOS, iPadOS, and macOS, governed by Apple's own license terms, and are credited here for transparency:
- PhotoKit — read RAW assets and write HEIC back into the Photos library
- Core Image — RAW decode, tone mapping, gain‑map synthesis
- Image I/O — HEIC encoding and metadata preservation
- Core Graphics — color‑space and pixel handling
- SwiftUI — the entire user interface
- App Intents — the Photos Share‑sheet entry point
- ActivityKit — the Live Activity shown during a batch
- BackgroundTasks — letting batches finish while the screen is off
- UserNotifications — completion alerts
- WidgetKit — the Live Activity Widget Extension
© Apple Inc. All rights reserved. Use of these frameworks is governed by the Apple Developer Program License Agreement.
3. Test-only dependencies
The following package is used only to render snapshot tests during development. It is not compiled into the shipping app and never reaches your device:
4. Contact
Spotted a missing attribution or have a licensing question? Email sgumz [at] me [dot] com and we'll fix it.