Bitcoin Forum

So I was looking through the types of wallets I could have on my iOS here (https://bitcoin.org/en/choose-your-wallet) and didn't come across a wallet that has the ability to sign and verify messages. Since I'm always away from home it seems like, it would be nice to find a way to be able to get me own wallet on my phone that I could prove I have the private keys too on my phone. Does anyone know of any good wallets that could do this? Maybe an online wallet would have to do?

Mycelium wallet allows it's user to sign message (at least for android). Coinbase allows it's users to sign a message using their address but there are restrictions on which service you can spend the coins in their wallet on.

I'll test the wallet using my iPhone and I'll let you know about others.

Awesome! Thanks for the response. I'll go ahead and download/test it too. If I have any questions I'll be sure to get back to you.

Ok so I just downloaded it and wrote down my master seed, and was looking through the settings and the only thing that I would think would act as signing a message is where it says "export diagnostical data". Is that how you should sign a message through there? I haven't tried it just in case it would mess up anything.

No. I have tried Mycelium and Hive, they are the larger wallets and it seems like they do not allow the signing of the message. Coinbase does on their WebUI, perhaps you can try that. Sorry for the confusion, Mycelium android allows the signing of the message.

Before you consider using mycelium on iOS , you should do some research first. I heard some negative reviews about it. Check this out: https://www.reddit.com/r/Bitcoin/comments/36ke99/mycelium_iphone_vs_android/ and also this veteran member says : https://bitcointalk.org/index.php?topic=293472.msg12705399#msg12705399 I can't confirm it though cuz I am an android user (mycelium on android works great)

Man, that a shame.. Was pretty excited about that. But what's the purpose of signing a message through a web based wallet if you don't even have the private keys that control your bitcoins anyways? I guess I'll just have to stick using my desktop wallet to do that sort of thing and/or wait to get an android when the time comes to enjoy that ability to sign on your phone.

Iam user mobile wallet too (mycellium)
you can use tutorial from shorena it's very detail with screenshoot
https://bitcointalk.org/index.php?topic=990345.0#post_mycelium230

Imo, Mycelium is the way to go

The best one for mobile wallet both in features and security is Mycelium :)
They also has a seed support so you can easily import your wallet from different devices :)