CLARITY HUD

Building Clarity HUD — turns your phone into a windshield head-up display. Solo indie dev. Free on Android.

[CLARITY HUD @ClarityHUD]

@TheBigAristotl1 @GoingParabolic Not a dork at all, nav and music are what make a car livable every day. A good phone setup gets you most of the way there without paying for a built-in screen.

[CLARITY HUD @ClarityHUD]

@daareaallbraat Pulling over is the right call though. A backup that doesn't depend on the head unit helps a lot, even just the phone running nav on its own.

[CLARITY HUD @ClarityHUD]

@ayhannytgn Language apps, every time. Putting the content where people already look instead of asking them to open something is the right instinct. Same reason I built an app that puts navigation on the windshield.

[CLARITY HUD @ClarityHUD]

@thecatzeus3 Adding one: switch accounts on the same device. Found a restore purchases issue exactly that way last week, the happy path never would have shown it.

[CLARITY HUD @ClarityHUD]

@rexotech1 100% this. For me it was store billing, the review wait and restore purchases edge cases. The features felt like the easy part next to all of that.

[CLARITY HUD @ClarityHUD]

@gabrielbuilds_ Leaning on auto-converted USD prices. In some countries the app came out way too expensive. Setting regional prices by hand, keeping the same discount ratio between monthly, yearly and lifetime, fixed it.

[CLARITY HUD @ClarityHUD]

@ElijahTandi 71-100% gone in the first second is brutal but useful data. What moved it most for you, the hook text or the first visual? Making reels for my own app and the opening frame seems to matter more than the words.

[CLARITY HUD @ClarityHUD]

@Jul3102 @keenan_main If the robotic phrasing works and the natural one doesn't, that's the opposite of what a voice assistant is for. In the car is exactly where you can't afford to repeat yourself three times.

[CLARITY HUD @ClarityHUD]

@AppiahMehra Underrated tip. One thing worth adding: download a bigger area than you think you need. A detour around traffic can push you just outside the saved box, right when the network drops.

[CLARITY HUD @ClarityHUD]

@MilkPls68 The radar comparison is way too accurate. The funny part is the radar sits next to your knee, so you're glancing down the whole time. Moving that line up to eye level changes how the whole drive feels.

[CLARITY HUD @ClarityHUD]

@flyslowno @MCCCANM The reference line is such a clever bit of design: the display doesn't just inform, it lines up with the real world. Car HUDs borrowed the idea but mostly stop at showing speed. Always wondered why more of that logic never reached the road.

[CLARITY HUD @ClarityHUD]

@JassiV07 @AlexEdgerton Agree, screens date a car fast while a phone gets replaced every few years anyway. Analog dash plus phone nav is a solid combo, especially if the phone sits flat and reflects on the glass instead of hanging off a mount.

[CLARITY HUD @ClarityHUD]

@it4mu @UMetalDetecting Agree, keeping the factory dash lines matters a lot. The other route for older cars is getting the phone off the mount and out of your eyeline. I built a free app that reflects the nav onto the windshield, works well in older cars.

[CLARITY HUD @ClarityHUD]

Stop looking down. Look up. 👆

Clarity HUD turns your phone into a windshield head-up display. Lay it on the dash and your speed, turns and speed limits reflect upright on the glass. No extra hardware needed.

[CLARITY HUD @ClarityHUD]

@Village_boy7 The speed camera warnings alone make it worth having on for long drives. Having the limit in view the whole time keeps you honest without thinking about it.

[CLARITY HUD @ClarityHUD]

@bronze_bae It's not just you, the newer LED headlights are brutal. Keeping everything inside the car dim at night helps a little, at least the glare isn't coming from two directions.

[CLARITY HUD @ClarityHUD]

@aradhik11 The +1 tax. Letting CI set the build number from the pipeline fixed this for good on my side. Now the only way to hit it is uploading a local build by hand.

[CLARITY HUD @ClarityHUD]

@devsolojr Day 13 is right around where most people quietly stop, so keep going. The boring days are the ones that compound. Solo Android dev here too, following along.

[CLARITY HUD @ClarityHUD]

@sshahzaiib A debug mode that spawns fake members moving along recorded GPX tracks saves a ton of time. Then one real outdoor test with an old phone in a friend's car to catch what the fakes miss.

[CLARITY HUD @ClarityHUD]

@TheXSami @marieforleo 12 years building for others and then your own, that's a big one. Shipping something imperfect beats polishing it forever. What surprised you most once real users had it?