Image and video decision
MirrorCast
A capable engineer can build a narrow local‑network screen‑casting client (DLNA + Chromecast) by reusing OS capture APIs and open techniques, but reproducing the full cross‑device polish, IPTV features and broad device compatibility of the paid app is a multi‑week effort and likely not worth dropping the commercial subscription for most users.
View on the App Store↗$1.67/mo
$20/yr
Read off the official pricing page.
$100one-off76 h to build
$0/mo5 h/mo upkeep
On cash alone, building overtakes the subscription at 5 seats.
Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All MirrorCast alternatives, with the arithmetic →
What a replacement has to do
- Capture iPhone screen, discover and connect to a TV device on local network, encode and stream the captured frames to the device, present device list + playback controls, handle App Store subscriptions for feature unlocks.
What it still won’t have
- Cross‑brand compatibility edge cases and device-specific workarounds
- App Store presence, reviews, and discoverability
- Long‑term polish, bug fixes and performance tuning across many TV models
- Built-in IPTV playlist UI/UX and curated integrations
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 5 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal iOS screen‑mirroring app in Swift (iOS 16+) that mirrors the device display to DLNA and Chromecast devices on the same Wi‑Fi. Use ReplayKit/AVFoundation to capture screen and camera feed, implement mDNS/SSDP discovery for DLNA and Chromecast sinks, transcode/encode captured frames with VideoToolbox into H.264 and serve short HLS segments via an embedded HTTP server (GCDWebServer) for DLNA playback; implement Google Cast sender integration using the GoogleCast iOS SDK for Chromecast. Include a simple SwiftUI device list and controls (connect/disconnect, quality selector, mute), handle errors and network disconnects, gate unlimited casting behind StoreKit subscription, and provide unit tests for the discovery and streaming components plus basic UI integration tests. Out of scope: remote control of TV UIs, full multi‑brand compatibility testing, and IPTV playlist UI beyond a simple URL paste-and-play.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 3 cited sources+3
- Price verified on pricing page+3
- 3/3 assessment runs agreed+4
- Evidence score67
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productMirrorCast: Screen Mirroring - App Store
- open sourceGenymobile / scrcpy
- open sourceNetrisTV / ws-scrcpy
Integrity checks
What held up, and what did not.
