Linphone vs BLK CARDS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Linphone
This open-source application provides free audio and video calls, as well as text messaging, over the internet. It allows users to stay reachable at all times via WiFi or mobile data, even when the app is closed. Enjoy secure communication and the ability to connect with traditional phone lines.
- High definition audio and video calls
- Audio conference calls
- Picture and file sharing
- Push notifications for reachability
- Secure communication with encryption
- SIP-compliant VoIP service integration
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Linphone is an open source internet SIP phone or Voice Over IP phone (VoIP). Linphone is an open source app offering free audio/video calls and text messaging. With Linphone, you can be reachable at any time, even if the app is closed, with a WiFi or 3G/4G internet connection. Linphone key features: * high definition audio and video calls * audio conference calls with various participants * pictures and file sharing * Linphone accounts reachable at any time, even if the app is closed (thanks to push notifications) * secure communication (encryption options) * compliant with a large number of SIP-compatible VoIP service providers allowing to reach everyone that has a "classic" phone line. Linphone is available on the main mobile and desktop operating systems and offers various specific features for advanced users (codecs, transport standard, encryption options, DTMF...). For more information, see Linphone project website: www.linphone.org Note for developers and professionals: Linphone can be rebranded and customized to meet specific needs. Contact Belledonne Communications www.belledonne-communications.com for any specific development query.
BLK CARDS
Easily record any URL to NFC cards or tags in seconds. Share links instantly with a single tap on NFC-enabled smartphones, eliminating the need for manual entry or contact saving. Manage multiple URLs for different situations with a unique list feature.
- Record URLs to NFC cards/tags
- Instant URL opening on NFC-enabled phones
- Share social media, contact, and NFT links
- Create and manage unlimited URL lists
- No signup or profile creation required
- Personalize digital business cards
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A simple and intuitive App to record in 5 seconds any URLs directly to any NFC cards or NFC tags (compatible with all the most popular NFC chips NXP ntag213, ntag215, ntag216 and more). The URL will then instantly open on any NFC-enabled smartphones, in just one tap. No need to add people to your contacts, no more hassle spelling names, social media usernames, phone numbers, or email addresses. Share any URLs for example your Whatsapp, Contact vcard, Linktree, Instagram, Facebook, Twitter, Pinterest, LinkedIn, TikTok, YouTube, Vimeo, Linkpop, Dropbox, Soundcloud, Spotify...even your NFTs on Opensea etc...No signup required, no profile to create, no data to store anywhere, complete freedom. Share your exact URLs directly (no servicing platform in the middle). Manage your contactless digital business card with the unique feature "LIST" that allows you to use NFC-On-Demand. You can create, save and order an unlimited list of URLs, and then pick and choose anytime, anywhere, depending on the situation (business, social, private, public...up to you) and it will open automatically on their phone. The App is brought to you by the team at BLKCARDS.COM a top provider of customizable digital business cards, and NFC cards for marketers and brands. It's the first of its kind on the market and it's free, try it out. Don't have an NFC card yet? No problem. We offer every App user a 15% DISCOUNT on all NFC cards purchased on our store (find your PROMO CODE inside the App), and you can also personalize your digital business card with your own brand, logo or name, so get yours now at www.blkcards.com
Screenshots
Verdict
The clearest difference is rating: BLK CARDS at 5.0 against Linphone's 2.7. BLK CARDS also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (12.0 vs 15.0). Linphone's advantage is ratings volume (10 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BLK CARDS holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: Linphone has 10 ratings behind it against 1, so its average is the more settled of the two.
Linphone ships an update every 2 months, BLK CARDS every 10 days. The most recent releases landed on October 20, 2026 and September 29, 2026 respectively.
| Parameter | Linphone | BLK CARDS |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 35.4% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Belledonne Communications SARL | EmerTech Limited |
Customer experience
Linphone
BLK CARDS
Bugs and requests
Linphone
Reported bugs
4 issues- Crashes on startup
- Incoming calls not working properly
- Settings not saving correctly
- Compatibility issues with newer iOS versions
Requested features
4 requests- Add support for multiple SIP accounts
- Improve user interface and navigation
- Provide more customization options
- Enhance audio quality and noise cancellation
BLK CARDS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Linphone
No in-app purchases
BLK CARDS
No in-app purchases
