I think there’s accessible tuners. Try applevis.com and search for tuner.

Talking Tuner works great for IOS. With my ukulele, it sometimes takes a bit of fiddling until it recognizes the sound, but with a guitar you probably won't have that problem.

On android, SmartChord. It vibrates when you hit a whole note, which will get you there from being somewhere near. The one Bradley mentioned is called talking tuner and it's good if you have apple stuff. A lot of people I know have it. But usually can't you do it by ear? Maybe I've just been doing it a while, I don't know!

I've made my own web page to help me tune my guitar. This way I can use it from my computer or my phone. If anyone wants to give it a shot, try https://ashleygrobler04.github.io/gt/index.html

I sometimes use Talking Tuner on iOS as has been mentioned here, but more often I will just play a key on one of my keyboards since I know those are always in perfect tune and then just tune my guitar accordingly

Hey there, i use talking tuner, been blind 7 years and it works great.

I just youtube guitar tuner EADGBE. If I'm around my recording gear, I plug into logic, set a tuner meter on the track and go that way. Electric is a bit harder, but doable. You can also use tuning forks. I'm also working on the setup for a pedal board box that will handle tuning if you're blind and let you plug in a guitar/ukulele. It would work just as well without a pedal board as long as you have pickups and an instrument 1/4 to 1/4 cable to plug in, though.

Use beats to tune two adjacent strings to each other. Basically you start with the lowest string, then hold the 6th fret and play it at the same time as the next string, and listen for the beats (volume increasing and decreasing). Tweak the pitch on the second string until the beats get longer and longer, then go away. Repeat for the other strings (one of them is 5th fret instead, I forget which). You should be able to find videos demonstrating beats if you’re not familiar. This is a great method to get strings tuned relative to each other, though they may still be off absolutely.

Tuning fork, I have a fork that vibrates to an A.

There are accessible apps on a phone that can do this. I can't think of any off the top of my head since I got perfect pitch but try applevis.

As another poster said, if you’re looking for a hardware device, the Roadie 3 automatic tuner really is quite good it is a small device that you literally turn on, tell it the tuning, and connected to each of your tuning pegs. It will then robotically tune the guitar. I use it all the time now, but, I also can tune by ear from a reference pitch if I need to. The tuner is a fantastic gadget, but I think before you use something like that, you really should have the ability to tune to a reference pitch first. Because that is a key skill

You could use the be my eyes app and a regular tuner and have the person tell you when the tuner says its tuned properly

I love the Roadie 3 automatic tuner. The setup isn’t great for anyone with poor eyesight, but once you’ve got it set up you just turn it on, hold it to the tuning pegs and it tunes them automatically. It’s amazing.

You can train your ear. I used to be able to tune better than a tuner, but that was back when I was obsessing about perfect pitch.