Linky

Install Linky and your contact list is empty. No phone book, no e-mail, no ID. That is on purpose, and it is also a real drawback: the app has no idea who you know.

So we put a lot of work into finding people. Six ways, in the order you will use them:

1. QR code. Show the one in your Profile tab, the other person taps "Scan contact QR". Not in the same place? Send your linky.fit/p/… link from "Share profile" in any messenger.

2. New users. A friend next to you just installed Linky? The "Add contact" page suggests accounts created in the last hour with a "New" badge.

3. Search by name. When Alice registers [email protected], typing "alice" is enough. A Nostr nickname, an npub or a NIP-05 name work too, and so does a Lightning address of someone without Linky.

4. People nearby. Turn on the beacon at a meetup and your phone says over Bluetooth that you are around. People nearby add you from suggestions, mutual contacts see you at the top of Contacts, and you can add an intent: "Buys BTC" or "Sells BTC".

5. Contacts and groups in a message. Type @ and a name in a chat and the contact lands in the message as a pill. @Climbers sends the whole group, the recipient taps "Add all".

6. NFC card. "Write to tag" in your Profile puts your npub on any NFC card. Whoever touches it to their phone gets your profile and saves you with one tap.

You do not need hundreds of contacts. A friend for lunch, someone from the family, one or two people who sell sats for cash. The rest grows on its own, every new contact can send you theirs. And if you do not know anyone with Linky yet, go to the nearest bitcoin meetup. That is where the QR codes, beacons and NFC cards are.

The whole thing with screenshots: https://linky.fit/blog/finding-contacts/

Updates everywhere.. Now at maximum once a day. If you want more frequent updates, use https://nightly.linky.fit.

Latest version of Linky is 26.10.5 (for now😀)

• extended tutorial
• improved nostr identity switching
• Linky can receive P2PK Cashu tokens locked to your npub
• The Android app gets web updates without waiting for a Google Play release
• ₿ now used for whole bitcoins - seems that it’s not that established for sats
• notifications on Android without Google
• delete messages & contacts
• full emoji support

See the blog posts for more details and animations 😊

• https://linky.fit/blog/linky-26-10-3/
• https://linky.fit/blog/linky-26-10-4/

Linky 26.10.3 is out. The main thing in it is profile links.

Every Linky user now has a page at linky.fit/p/ if you claimed a linky.fit lightning address, or linky.fit/p/ otherwise. The Profile tab has a Share profile button. On a phone it opens the share sheet, on desktop it copies the link.

When someone opens your link and taps Open in Linky, you're saved as their contact and the chat opens with "Hi 👋" already typed. One tap and you hear from them. If they don't have Linky yet, they create an account first and then land in that chat. The QR code on your Profile holds the same link now, so any camera app opens it.

I like this one because nobody has to look at an npub anymore.

Also new: log into websites with your Nostr identity through nostrconnect:// links, experimental Keryx announcements in Settings, and a contact saved twice stays in one chat.

Release notes: https://linky.fit/blog/linky-26-10-3/ App: https://app.linky.fit Nightly, with every change merged to main: https://nightly.app.linky.fit

New avatars

Recurring payments are kind of hidden.. At least for now. You can find them in the transaction history - accessible from wallet page.

Test it out and let us know if you find it useful.

New Linky version is out! 26.10.2 - With many new features and improvements. 🔥

• Recurring payments
• Light mode
• New avatars
• Payment animations
• Payment descriptions
• Proxy payments extended to Brazil 🇧🇷 https://blossom.primal.net/b467e11e892ff3b6888b43c72f2a30fd1714d8fde13f3ed1481445372edbea54.jpg

New features are coming… 🔥

Linky 26.10.1 is out 🚀

• Better UI animations - app feels nicer to use • Cashu receives don't bug out when network has issues • Cleaner history bug fixes • Choose your receive QR: Cashu, Universal or Lightning • Better privacy after logout

How the proxy payments were born.

https://stacker.news/items/1585834

Cleaner profile creation

Now we display basic fee policy of your selected cashu mint

First release of Linky on

🎉

https://zapstore.dev/apps/fit.linky.app

Version 26.7.3 🚀

• Improved flow of adding a new contact
• Fixed fee rates calculation
• Pay button disabled during payment to prevent repeated payment https://blossom.primal.net/47c9a324a6a5111feda936348024dc70aaa669507613bd0055ec798fed4abfa8.mp4

Name registration directly in LN address edit

Dedicated page for master secret

Emojis replaced with cleaner icons

See you there 🫡

Version 26.6.8 🚀

• I made cashu melt to main mint as an opt-in. It will only be offered when you're about to make a payment and don't have enough funds in any specific mint.
• Showing the profile when tilting the phone is now opt-in as well. If you want this feature, you'll need to enable it first.
• Links in messages are now clickable, and website previews are displayed too — just like in other messaging apps.
• Cleanup of evolu tables — transactions and tokens.
• Verified Lightning addresses are now marked in profiles.
• Fixed returning to the wallet after manually entering a transaction.

Please let me know if you run into any issues 🙏

Version 26.6.7 👤

• Thanks to everyone who got their own lightning address in Linky. 🙏 You can now also get NIP-05 verification in your profile edit. This means that other nostr apps will also see that you're verified by linky.fit
• When adding a new contact, it no longer has to be just that long npub string - you can now use the NIP-05 identifier, for example [email protected]. And if it ends with @linky.fit, you don't even need to type that part...
• When you click on a contact's photo, you copy their npub. You can then send it to someone in a message for easier network building.
• When making payments, I've added the option for manual entry—lightning address, lightning invoice, cashu request, ... and now you can also enter a NIP-05 contact.
• It also searches through your contacts as you type during payment. Please test how it works for you. 🔥
• And some more fixes and new yet unknown bugs as always 😀

Version 26.6.5 🎉

• Support of BIP321 (cashu/lightning)
• Automatically adding contact after paying cashu request
• Showing profile when you twist the mobile to your peer - inspired by Arké application
• Added rates for EUR and CHF
• More specific push to PWA from web version
• Display of network fees in history https://blossom.primal.net/3785a1fcc37585087e654286b34e5c33716bde37815920c564b5192dc7dbabb1.png

Workshops on

are very inspiring . The most useful insights so far mainly from

and

Improved web https://linky.fit/

Version 26.5.8 introduces lightning addresses ending with @linky.fit 🚀

• The main benefit is that you can now receive tokens from your primary mint (until now, tokens received through this feature always came from Minibits, even if you were using different mint).
• New accounts will get this address suffix automatically, but you can simply change it to @npub.cash and it should work as well.
• For existing accounts, just open your profile settings and click the refresh button to switch to the Linky version.
• I've also added a paid option to set a custom address — for example, I personally use [email protected].
• Only one custom address can be purchased per npub.
• Both your generated address and your custom address will work for receiving payments. 
Let me know if you have any questions, ideas, or feedback about this 🫡

Version 26.5.7

• Small fix for the contacts scroll — it should stutter less now
• Increased the font size when typing a message
• Added the ability to set a custom status in profile editing
• Avatar refresh — until now, your contacts’ avatars were loaded only once; now the app checks from time to time if they’ve changed
• Added the ability to archive contacts (and filter archived ones)
• Added the ability to block contacts

Improved UI of the messages

• Sent messages are highlighted in green, received messages in gray
• Token amounts now display their unit
• If you share a contact in a message, it's now visually represented as well — clicking it adds that contact
• I also fixed owner rotation and incorrect message display when a message comes from a deleted contact
• If you pay to a Lightning address that's in your contacts, it's now correctly linked to that contact in the transaction history as well https://blossom.primal.net/0af6bf78bcffde2779c493880cd24887480d2167cfeb46d31c95d4e6e59430d4.png

Fast switching between units… and private mode 🥷

Many bug fixes and info about new version has been added.

Avatar customization is now more fun

Automatic key saving 🎉 Chrome, Safari work – Android doesn’t yet, but it should be available soon as well.

On the website for cash withdrawal, I set the main action as "Pick up in Linky." However, if you click on "Other options," it will also offer you a QR code (cashu), or you can enter an LN address where the funds should be withdrawn to.

After clicking on "submit," the scan continues to open (you can scan various things – for example, lnurl, lightning address, a specific invoice, or even a cashu token, contact, etc.).

I have now added an option to select a photo from your gallery at the bottom – this allows you to load a QR code in this way, which is useful when moving from one app to another. Personally, I would prefer copy/paste, but I've seen a lot of people do it this way. More interesting is the option to emit a token – you enter the amount that will be reserved from your funds, then you can show someone the QR code, send it to a specific contact, or even send it via Signal or any messenger – even to someone who doesn't have any bitcoin app.

Pay with cashu to your contacts

Top up Linky with any lightning ⚡️ wallet…

Or test it first with testnet mint without worries.

Three clicks to start accepting bitcoin

• Web now provides android file
• You can selectwhole balance when you click on ‘available’ in send modal https://blossom.primal.net/94f87713e6339293ee7f08eb92188ce396153f63caff7468cc6ae94d86bf4548.png

First web version is deployed 🚀

https://linky.fit/

Update released 🚀

• Improved copy on welcome screen
• The items in “Getting Started” are now bullet points
• I removed cashu words from the settings - it wasn’t working properly. If there’s interest in the future, I’ll implement it again
• The scan feature is larger
• Added the option to input data into scanning - for example an LN invoice or npub
• The scanner now opens immediately when adding a contact
• I set “Wallet” as the main page
• I wasn’t able to implement URI linking… I think a native app will be needed first
• I fixed repeated loading of already received messages

You can choose your avatar from 8 random derivations.

You can switch to fiat if you are not ready for sats. I chose a somewhat unconventional approach. Two different units are not shown at the same time. And no decimals. If you want USD, you don’t see sats, and vice versa. In reality, everything is of course still in sats. Give it a try. I think it works quite nicely.

I also adjusted the limit setting for payments without confirmation. You can now enter your own amount as well, always in your selected currency.

It’s now also possible to scan LNURL (even without a predefined amount). At the same time, if a contact can be extracted from it, the app assigns it so you know who you’re paying. If you don’t have that contact saved yet, the app will offer to save it to your contacts.

Lightning payments above defined threshold needs to be confirmed now.

You can change the threshold in settings.

Visible messages from unknown contact

Simplified profile and receive screen.

Messages from unknown users will be visible for faster pairing.

Improved messages:

• Reply
• Edit
• Reactions 🚀 https://blossom.primal.net/65925d35a66f5aa187bcbcc6f4325fa5098f9241d0cb535257a570d789f21df5.png

New domain 🎉

https://linky.fit/

Todays update:

Message deduplication

After payment, you are taken straight to messages and should see the latest payment

In Advanced Settings, there is an overview of used Evolu storage

In Tokens, there is an option to check all tokens at once and delete non-functional ones

Fixed: Not enough funds available for swap

Added https://testnut.cashu.space to the list of offered mints for testing without risk. When you select this mint and then enter an amount in Receive, the invoice is automatically paid and you receive a test token.

Promises in payments are shown only when they are enabled

10s to pay 10sats to your friend…

• Screens (contacts/wallet) can be switched by swiping left/right or clicking on the button in the bottom
• The top navigation bar has the same profile and menu on both screens
• When scrolling up, you will see the option to search for a contact or select a filter (if you use groups for your contacts) https://blossom.primal.net/74c3056baaf1facbcc849224450caf745a1741e1e0d22ad58ef6d84fe56dd01b.png https://blossom.primal.net/15e0cf877b36552773d0f9b0273646fd5da51bba83550a55f8abef90062d9641.png

Switching between Contacts and Wallet seems to be confusing for many tester.. Will improve that…

Contact list now has a preview of last message or payment. Payment can be triggered directly in message.

Tokens are now hidden in details of wallet.

Now You can set custom mint in Linky. And sending tokens from various mints in the same time. Linky prefers to keep tokens from selected mint and spend primary the tokens from other mints..

Pay to contact with cashu on default.

Additional option to recover cashu tokens added to Linky

• Improved transaction reliability and UX
• Able to scan lightning address and select amount to pay
• Offers contact addition after payment

Adding tutorial

Direct top-up added into wallet

New profile now gets generated name, avatar, and lightning address.

• User can always get back to these default values
• Also improved fetching from nostr

Hello World, New app for personal contact management is here:

• Linky creates a new account with a single click
• Immediately generates a Lightning address for you
• When you receive bitcoin to this address, it appears in your wallet
• You can instantly pay your contacts
• Everything is updated in real time across all devices where you log in with the same account
• If your contact uses Nostr, you can also exchange encrypted messages with them
• At the same time, you won’t see any spam — communication intentionally requires consciously adding each other as contacts first
• All data is independent of the app, so you can switch to a copy of it or another app using the same protocols at any time and everything will keep working
 You can check it out here: https://linky-weld.vercel.app/ Please provide your feedback 🙏