QR Code Scanners to check BTC balance

[Hhampuz]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address? I've been trying to find some for some time but it's just one faulty app with bugs after another. Some apps claim to be able to scan QR codes but they only give you the option to send btc to it - it won't display the balance.

[TryNinja]

If you're on iOS, you can just use the native camera. Scan the QR, click the bottom right QR code icon, select "copy".

[Hhampuz]

If you're on iOS, you can just use the native camera. Scan the QR, click the bottom right QR code icon, select "copy".

Yeah I know that, I was just hoping to get some realtime balance updates from scanning it rather than copying and going to a block explorer and doing it all "manually". I know there were some in the past, but they've all been shut down or removed.

[Crypto Library]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address? I've been trying to find some for some time but it's just one faulty app with bugs after another. Some apps claim to be able to scan QR codes but they only give you the option to send btc to it - it won't display the balance.

You can try this- https://play.google.com/store/apps/details?id=com.bitcoinbalancechecker&hl=en&gl=US
edited-
oh sorry it's for the Android versions. I am a Android user, don't know if they have apps for ios users.

[AB de Royse777]

If you're on iOS, you can just use the native camera. Scan the QR, click the bottom right QR code icon, select "copy".

Yeah I know that, I was just hoping to get some realtime balance updates from scanning it rather than copying and going to a block explorer and doing it all "manually". I know there were some in the past, but they've all been shut down or removed.

It must be a co-incidence LOL
I was looking for the same thing a few weeks ago and then gave up because nothing I found that was doing the job :-D

[RickDeckard]

While looking for any help in the Internet I found out that this need was discussed way back in 2012 right here[1] and it seems that 12 years latter there isn't a solution for iOS users. In the past there were some applications available (Baseline[2] and Scanbook[3] p.e.) but they seem to have vanished now.

Just a random idea but would creating a recipe in IFTTT[4] work? The way I see it is whenever you scanned a QR code, the action would be to modify an existing saved URL (for example - https://mempool.space/address/PASTEDURL) and then open that website. Not sure if that's doable however...
[1]https://bitcointalk.org/index.php?topic=94985.0
[2]https://itunes.apple.com/us/app/baseline-bitcoin-balance-tracker/id731521731?mt=8
[3]https://itunes.apple.com/en/app/scanbook-bitcoin-address-utility/id536215208

[PX-Z]

Yeah I know that, I was just hoping to get some realtime balance updates from scanning it rather than copying and going to a block explorer and doing it all "manually". I know there were some in the past, but they've all been shut down or removed.

It must be a co-incidence LOL
I was looking for the same thing a few weeks ago and then gave up because nothing I found that was doing the job :-D

I searched something similar and i found something that has this feature. It works like, after scanning the qr code you will need to save it using the plus icon to check its balance. I can't guarantee how safe it on your device though. It's an android app and supports other coins too.

[FatFork]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address?

"Blockchain BTC Address Book" can do that. The app lets you scan QR codes to easily add Bitcoin addresses to your watchlist.
https://apps.apple.com/us/app/blockchain-btc-address-book/id1361408498?platform=iphone

While I haven't tried it myself, seems to have good reviews.

[bitmover]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address? I've been trying to find some for some time but it's just one faulty app with bugs after another. Some apps claim to be able to scan QR codes but they only give you the option to send btc to it - it won't display the balance.

I could add that function to https://bitcoindata.science/bitcoin-balance-check

Would you use it in your phone browser?

I could add a camera button and the scanned address would automatically be added to the list to be checked.

[Hhampuz]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address? I've been trying to find some for some time but it's just one faulty app with bugs after another. Some apps claim to be able to scan QR codes but they only give you the option to send btc to it - it won't display the balance.

I could add that function to https://bitcoindata.science/bitcoin-balance-check

Would you use it in your phone browser?

Phone browser would not be an issue for me and that'd be greatly appreciated! I use chrome on my phone, if that matters.

[bitmover]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address? I've been trying to find some for some time but it's just one faulty app with bugs after another. Some apps claim to be able to scan QR codes but they only give you the option to send btc to it - it won't display the balance.

I could add that function to https://bitcoindata.science/bitcoin-balance-check

Would you use it in your phone browser?

Phone browser would not be an issue for me and that'd be greatly appreciated! I use chrome on my phone, if that matters.

Nice. I will try to come back here in a few days with this function implemented so you can give me your feedback

[dkbit98]

I don't use iPhone so I have no idea OP.

I could add that function to https://bitcoindata.science/bitcoin-balance-check

That would be cool tool to have, but be careful with many QR codes standards that exist, there could be many issues with compatibility.
Making it work with all of them is an not easy task, especially when some wallet developers are trying to invent wheel all over again.

[bitmover]

As title reads, are there any recommendations of apps for iphone that can scan a QR code of a bitcoin address and display the balance of said address? I've been trying to find some for some time but it's just one faulty app with bugs after another. Some apps claim to be able to scan QR codes but they only give you the option to send btc to it - it won't display the balance.

I could add that function to https://bitcoindata.science/bitcoin-balance-check

Would you use it in your phone browser?

Phone browser would not be an issue for me and that'd be greatly appreciated! I use chrome on my phone, if that matters.

I have created a first version,, it is already working.

Please tell what you think and if you have suggestions.

https://bitcoindata.science/bitcoin-balance-check

[Hhampuz]

I have created a first version,, it is already working.

Please tell what you think and if you have suggestions.

https://bitcoindata.science/scan-address

This works like a charm! I really appreciate it and the fact that you can scan multiple and it saves the last few ones on the bottom - very helpful!

Would it be possible on your end to make it so the camera is either a bit more zoomed in when pressing "start scanning" or anything else that would make it a bit more easy to detect a qr? I tried it now and even though the QR code I'm scanning is quite small I have to basically put my camera a millimeter away from it, haha. Could just be an iphone issue, too.

Sadly I don't have any merit to give you as I've run out but I'll make sure to send over a donation!
EIT; Not sure how difficult but, would it be possible to display both current $ value as well as $ value at time of tx?

[CryptoHeadlineNews]

I have created a first version,, it is already working.

Please tell what you think and if you have suggestions.

https://bitcoindata.science/scan-address

Just as Sir Hhampuz said, I stand to the second person to say this new tool of yours is actually fantastic, because I recently just gave it a try, and it just worked like magic by displaying both the address of the scanned BTC QR code, exact amount of BTC and it's current value in dollar at the moment as shown below.

Thank you once again Sir Bitmover..

[bitmover]

This works like a charm! I really appreciate it and the fact that you can scan multiple and it saves the last few ones on the bottom - very helpful!

Would it be possible on your end to make it so the camera is either a bit more zoomed in when pressing "start scanning" or anything else that would make it a bit more easy to detect a qr? I tried it now and even though the QR code I'm scanning is quite small I have to basically put my camera a millimeter away from it, haha. Could just be an iphone issue, too.

Sadly I don't have any merit to give you as I've run out but I'll make sure to send over a donation!

Thank you!!!

I didn`t see any configuration in the library that I am using which would make scan process easier... Maybe you could zoom in the QR code before scanning?

EIT; Not sure how difficult but, would it be possible to display both current $ value as well as $ value at time of tx?

This might be a bit more complex than it looks like, because the address could have several inputs from different times. Each input would need to have 2 values.

It is doable, but I would have to break each address by input. I will think about it! Maybe if you click in the addresss like "Details" , we could see a detailed information about the address.

Just as Sir Hhampuz said, I stand to the second person to say this new tool of yours is actually fantastic, because I recently just gave it a try, and it just worked like magic by displaying both the address of the scanned BTC QR code, exact amount of BTC and it's current value in dollar at the moment as shown below.

Thank you once again Sir Bitmover..

Thank you!

[khaled0111]

Thank you for the great and helpful tool, bitmover. It works like a charm indeed!

This might be a bit more complex than it looks like, because the address could have several inputs from different times. Each input would need to have 2 values.

It is doable, but I would have to break each address by input. I will think about it! Maybe if you click in the addresss like "Details" , we could see a detailed information about the address.

Am sorry if I got it wrong but I think the number of inputs or their values are irrelevant here. What you need to get this done is the current value of the transaction and the value of bitcoin when the transaction got confirmed then you can do the math.
You can call this blockchain api endpoint^*:

Code:

https://blockchain.info/frombtc?value=(current transaction value)&currency=USD&time=(Unix time when the transaction got confirmed)&textual=false&nosavecurrency=true

Not sure if blockchain api has any limitation on how many requests you can make, though
^*: https://bitcoin.stackexchange.com/questions/41772/get-value-at-time-of-transaction-from-blockchain-info-api

[bitmover]

Am sorry if I got it wrong but I think the number of inputs or their values are irrelevant here. What you need to get this done is the current value of the transaction and the value of bitcoin when the transaction got confirmed then you can do the math.
You can call this blockchain api endpoint^*:

Code:

https://blockchain.info/frombtc?value=(current transaction value)&currency=USD&time=(Unix time when the transaction got confirmed)&textual=false&nosavecurrency=true

Not sure if blockchain api has any limitation on how many requests you can make, though
^*: https://bitcoin.stackexchange.com/questions/41772/get-value-at-time-of-transaction-from-blockchain-info-api

The point is that I am scanning addresses,  not transactions.

Imagine that you scan a signature campaign addresses for example. It could contain dozens of transactions...

I would have to  show the value of each transaction from/to that address.

[khaled0111]

The point is that I am scanning addresses,  not transactions.

Oh sorry, my bad! I thought you were talking about a transaction inputs not an address input. Thank you for the clarification.
The confusion was because of Hhampuz's question.
In this case, you are right. It's going to be more complicated and a bit resource intensive as you will have to list all the transactions of the scanned address and both their current and original values.

[bitmover]

Hhampuz's ,

I have updated the tool. I decided to integrate it inside the balance-checker tool

https://bitcoindata.science/bitcoin-balance-check

Please take a look. I also made a small UI improvement,.