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65
BU Score
Solid

NFC21 Tools

4.7 ✍️ Editor
✍️ BU Analytics Review

NFC21 Tools is an iOS app from NFC21 GmbH in the Utilities category, currently rated 4.7★ across 37 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Our BU Score puts it at 65Solid (established niche player). For a Utilities app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

creator

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Excellent rating (4.7★)METRIC
+$2,200
5 starREVIEW
+$1,800
Established app (6y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Localized (6 languages)METRIC
+$600
Pre-traction phase (37 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 3 MB🔞 4+📱 iOS 14.0+🔖 v1.6🔄 updated 3y ago🌐 EN, FR, DE, IT, PT +1📂 Utilities💰 Paid🚀 Launched 2020 (6y old)

📝 About this app

We love NFC, therefore we decided to develop our NFC21 tools. Our app offers you an advanced yet easy to use toolset to explore NFC with your iPhone. Reading as well as writing of NFC-tags is supported and wrapped in an attractive user interface.

NFC21 tools greets you with a history view, which contains all NFC-Tags you have read or written. Additional filters enable you to narrow down the list to ‘Read’, ‘Written’, ‘Drafts’ or ‘Favorites’ only. Tap on an entry for more details like the serial number (uid), memory size, write lock as well as the stored content. Based on the latter, an available action is offered like opening a link in Safari or the import of v-cards into the Contacts app.

Creation of own NFC-tags starts with the selection of a type. We differentiate three different types. First, the standard-type creates NFC-tags which are readable by newer iPhones (iPhone XS, XR or newer) without an additional app. Second, extended types which offer more advanced scenarios like sharing of locations, contacts or WIFI-credentials. These types require a suitable app (like NFC21 Tools or NFC21 Reader) to read and process the stored content. Lastly, the expert type allows the definition of own datatypes, which require suitable / custom apps to use them.

In summary, NFC21 Tools support the following tag-types:

Standard (usable without an app with iPhone XS, XR or newer):
• URL: Share a link to a website with an NFC-tag. Long / complicated addresses are a problem of the past.
• Phone number: Share a number with NFC – always right and directly dialable.
• E-Mail: Prepare a message for a recipient, ready to send with a tap.
• SMS: Create a short message for a predefined number, an optional text and ready to send in an instant.
• FaceTime: Start a FaceTime conversation with a scan.
• Shortcut: Execute a shortcut from the apple shortcuts app with a simple scan.

Advanced (with App):
• Text: Hide a text within an NFC-tag, waiting to be read by a scanning fellow.
• Address: Prepare a location for maps to ease getting direction – complicated street names are not a problem anymore.
• Position: Locate an exact position (treasure)? Store longitude and longitude for use in the maps app.
• Contact: Make your business card smart and let others scan your data like magic.
• WiFi: Share credentials and ease login with a tag scan.

Expert:
• Data: Allows to define custom data types (MIME-Type).
• Bluetooth: Share Bluetooth device IDs for easier coupling.

Recommended NFC-Tag types:
• NXP NTAG 203, 213, 215, 216

Support and NFC-Tags
The NFC21 Tools app is developed by the NFC21 GmbH. Do not hesitate to send feedback and feature requests to our support.
We recommend NFC-Tags based on the NXP NTAG-Series. In our online-shop we offer you a broad selection of NFC-products in various shapes and colors. Furthermore, we produce custom NFC-products based on your individual requirements.

🆕 What's New · v1.6

New: Optional voice output that reads out the content of NFC tags.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
NFC21 Tools
Developer
NFC21 GmbH
Bundle ID
de.nfc21.NFC21-Tools
App Store URL
Open in App Store
Category
Utilities
Content rating
4+
Languages
EN, FR, DE, IT, PT, ES

Company

Website
nfc21.de
Tagline
Wir zeigen das Potenzial von NFC
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$10.4K/mo
Top-grossing rank
Outside top 100 in US Utilities
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
https://www.linkedin.com/company/nfc21-gmbh/
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
https://nfc21.de/press-page/presse
Press / News
Not found

Contacts & Socials

Socials
facebook · instagram · linkedin
Email
Not found
Phone
+49 208 60 70 42 0
Contact page
Not found
About page
https://nfc21.de/teammembers
📈Ratings growth37 ratings+3600% lifetimeShow 3-year history estimate ▾Jan 2021Sep 2024May 2026
Tracked (11 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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