“Sharp TV remote app” is really three questions wearing one trench coat, because Sharp has shipped more smart TV systems than almost anyone: Roku in the US, Android TV and Google TV in Europe, Fire TV on some recent sets, and its own Aquos system before all of that. Which one you own decides everything, so start there.
Which Sharp is it?
Power the set on (the physical button hides on the underside or lower rear) and look at the home screen:
| Home screen | System | Phone control |
|---|---|---|
| Purple-accented app grid | Roku TV (US, ~2015 onward) | Instant, no pairing |
| Google search bar, content rows | Android TV / Google TV (mostly EU) | 6-digit on-screen code |
| Amazon banner rows | Fire TV (some recent models) | On-screen approval |
| Anything older-looking | Legacy Aquos | Partial at best, see below |
How do I control a Sharp Roku TV from my iPhone?
The lucky case, and in the US the common one. Roku needs no pairing ceremony: put the iPhone on the TV’s Wi-Fi, open A Decent Remote, tap the Sharp in the scan, and you have power, volume, input, apps, d-pad and the phone keyboard for search. Off Wi-Fi after a router change? The Roku guide includes the hotspot trick that brings it back without any remote.
How do the Android TV and Fire TV Sharps pair?
Like every other set on those platforms: the TV shows a six-digit code (Android TV / Google TV) or an approval prompt (Fire TV) the first time your phone connects. Type or approve once and it’s remembered. Details and edge cases live in the Android TV guide and the Fire TV guide.
Why can’t an app fully control an old Sharp Aquos?
Here is the honest part most remote-app listings skip. Legacy Aquos sets do have a network control protocol, and we studied it before deciding not to support it: the protocol carries power, volume, mute, input and channel, but no navigation keys at all. No up, down, left, right, OK. You could change inputs from your phone but never move through a menu, and a remote that can’t navigate is a coaster. That is a limit of the TV’s firmware; any app claiming full Aquos control is bluffing with an IR feature your iPhone doesn’t have hardware for.
For an old Aquos the practical paths are a cheap universal IR replacement remote, or the upgrade path: a streaming stick in HDMI 1, which your phone controls completely and which replaces the aging Aquos software with something current. Either way the panel itself is fine; Sharp built those to last.