Sweet NFC
Transform NFC tags into instant digital business cards. Tap, share, connect.
Download Sweet NFC4.6★
User Rating
50K+
Downloads
Free
Android App
Write unlimited NFC tags - No subscription required
Transform NFC tags into instant digital business cards. Tap, share, connect.
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Sweet NFC converts any compatible NFC tag into a programmable digital business card. The app writes NDEF records containing vCard data directly to the tag's memory sectors, allowing instant contact sharing through proximity-based NFC communication. Each profile supports up to 12 custom fields including name, phone numbers, email addresses, social media handles, and website URLs.
The writing process uses Android's NFC API to encode data in Type 2 or Type 4 tag formats, ensuring compatibility with 98% of modern smartphones. Tags can be rewritten unlimited times, with each write operation taking approximately 2-3 seconds depending on data complexity and tag memory capacity.
Profile templates enable rapid deployment across multiple tags - create once, write to dozens of tags without re-entering information. The app automatically validates phone number formats, email syntax, and URL structures before writing, preventing invalid data from being encoded onto physical tags.
Write to as many NFC tags as you need without subscription limits. Compatible with NTAG213, NTAG215, NTAG216, and Mifare Classic tags. Each tag retains data permanently until overwritten, with read speeds under 500 milliseconds on supported devices.
Store and manage up to 50 different contact profiles within the app. Switch between personal, business, and event-specific profiles instantly. Each profile maintains independent field configurations and can be assigned custom labels for quick identification.
Export any profile as a standard vCard 3.0 file for backup or email distribution. Files include all contact fields, notes, and custom data. Import existing vCard files from other contact apps to convert physical business cards into NFC-enabled smart cards.
After writing, the app automatically reads back the tag content to verify successful encoding. Real-time feedback shows field-by-field comparison between intended and written data. Failed writes trigger instant retry prompts with error diagnostics.
Every profile generates a companion QR code containing identical contact data. Share profiles with non-NFC devices or print codes on traditional business cards. QR codes update automatically when profile data changes, maintaining synchronization across formats.
Queue multiple tags for sequential writing using the same profile. Ideal for conferences, networking events, or team deployments. The app guides you through each tag placement with audio and haptic feedback, processing up to 30 tags per minute.
Free on Android 7.0+. No account required. Installs in under 60 seconds. Start writing NFC tags immediately.
Get Sweet NFC for AndroidRequires NFC-enabled Android device. Free download with no in-app purchases. Age rating: Everyone.