
Castpane
Mirror your iPhone, iPad or Mac to a Windows PC
What is Castpane?
Castpane is a screen mirroring receiver for Windows 10 and 11 that works with AirPlay. On an iPhone, iPad or Mac, open Control Center, choose Screen Mirroring and pick your PC: the screen and sound appear in a normal window you can move, resize, keep on top or make full screen. There is also an audio-only mode that turns the PC into a speaker. Sound is included, with no watermark and no second app. When a device cannot see the PC, a built-in connection wizard checks the firewall, network type, adapters and discovery and says what to change in plain words. Free companions: Castpane Link for Mac helps on networks that hide the PC, and the Castpane Tab Cast extension sends a Chrome or Edge tab with sound. The download is free with 15 minutes per connection; a one-time in-app purchase removes the limit. No subscription, no account, no ads.
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What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
we have a million dollars a day budget at the campaign level... with the guard rails in you won't be spending 1 million a day of course you will only spend up to your total campaign cap
Set campaign budget to $1M/day to remove pacing caps — guard with spend limits
At accounts already spending $50k+/day, an artificially low daily budget signals the algorithm to throttle delivery. Setting the campaign-level budget to $1M/day while placing real spend controls at the campaign-cap level removes that ceiling and lets the algorithm compete for higher-quality inventory. In one case this produced a hockey-stick volume increase while cost-per-purchase fell simultaneously.
Monthly equivalent price when people can see oh it's just going to cost me $8 even if they have to be billed for the whole year it's good — we saw success there.
Show monthly equivalent price even when billing annually — "$8/month" converts better than "$99/year"
Annual subscriptions look expensive at first glance. Displaying the monthly equivalent price ($8/month) alongside the annual billing total ($99/year) dramatically increased conversion in Microsoft's tests — users process a small monthly number as affordable even knowing they'll be billed in one shot. This single framing change is one of the lowest-effort, highest-return paywall experiments available.
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