Smart NFC vs JSON Navigator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart NFC
This app allows users to read, write, and interact with NFC tags directly from their compatible iPhone. It supports various record types, tag formatting, and direct memory access for advanced customization. Background reading is also available on newer devices.
- Read, write, duplicate, erase, and lock NDEF tags
- Format tags as NDEF
- Interact with links and social media records
- Background tag reading
- Direct tag memory access
- Send custom commands to tags
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NFC is supported on iPhone 7 or newer only; iPad and iPod Touch do not have the hardware to interact with NFC tags. ----- Read, write, interact, and hack your NFC tags on your supporting iPhone! Smart NFC is one of the first apps to support native NFC writing directly from your device. With numerous custom records to get you started, you'll be writing to most NDEF-formatted NFC tags in no time. Don't have any NDEF-formatted tags? Format them in the Advanced section. Tag-specific features are being added that allow you to edit a tag's memory directly, which opens the doors to all kinds of new features! Tag not scanning? NDEF format new tags from the Advanced section to get them working right! An NFC tag is written with a single "Message" which contains any number of "Records." These records define text, links, and data to be stored on the tag. Most tags can be scanned by holding the top of your iPhone within a few centimeters. A chip is only limited only by its size. As long as the chip is NDEF-formatted (most are, and other formats will be supported in a later version) and it has enough space, the limits are endless! Features: - Read, write, duplicate, erase, and permanently lock NDEF-formatted tags - Monitor a tag's max capacity (usually somewhere between 256-1024 Bytes) - Read, write, and interact with links (https://, sms://, facetime://, mailto:, etc.) - Write a variety of pre-defined Social Media and website records - Read and write text records with multiple language localizations - Use Background Tag Reading to interact with NFC tags without an app. Write a link to a tag and then tap it to your phone. Voila! (Supported on iPhone XS and newer) - Review and rewrite previous messages from your History to another tag - Format factory-programmed tags as NDEF tags in-app (Supports most common tags such as Type 2 and Type 5 NFC tags) - Read and write directly to a tag's memory - Send custom commands directly to a tag - And of course, target your users better by using a tag's unique identifier Extras: - Dark Mode - Privacy: we collect nothing as you use the app. Supported Devices: - NFC scanning is available on iPhone 7 and newer. iPad and iPod Touch do not have the required hardware. - Background Tag Reading is available on iPhone XS and newer. iOS will present a notification for the first valid link stored on a tag. Supported Tags: - Any NDEF-formatted tags - MIFARE Ultralight - NTAG 213/215/216 - NXP ICODE® Tags, ISO 15693 Tags, and Type 5 Tags Future support for: - MIFARE DESFire Limitations: - MIFARE Classic tags are not currently supported by iOS Future features: - Include a tag's ID and/or its read count in a record - Password-protect an NFC chip - Connect to a Bluetooth device Feel free to Tweet feature requests to me at @0xA1EC
JSON Navigator
This app transforms JSON data into interactive, visualized trees directly within Safari. It offers instant visualization, data type indicators, and easy navigation through complex structures. Customize your viewing experience with light and dark themes.
- Instant JSON visualization
- Interactive tree-view interface
- Data type indicators
- Expand/collapse nodes
- Customizable light/dark themes
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Transform JSON Data into Interactive Trees with JSON Navigator for Safari JSON Navigator provides clean visualization of API responses through an elegant tree-view interface. Designed for developers. Powerful features: - Instant JSON Visualization: Converts JSON responses into interactive trees instantly on page load - Data Type Indicators: Lets you know if you are dealing with a string, number, object, date or other data type and includes element counts - Interactive Tree Navigation: Expand and collapse nodes with ease, making it simple to explore deep data structures - Customizable Interface: Choose between various light and dark themes to find your preferred style Enhance your development workflow with an intuitive tool for JSON analysis. JSON Navigator delivers powerful functionality in a lightweight, efficient package, making API response validation and data structure examination effortless. Perfect for developers on the go.
Screenshots
Verdict
The clearest difference is rating: JSON Navigator at 5.0 against Smart NFC's 4.5. JSON Navigator also leads on review sentiment (67% vs 48%) and price ($0.99 vs $1.99). Smart NFC's advantage is ratings volume (92 vs 2). On update cadence, ads, in-app purchases and chart position 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
Smart NFC costs $1.99 and JSON Navigator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
JSON Navigator holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Smart NFC has 92 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 48% of Smart NFC's written reviews are positive against 67% of JSON Navigator's.
Smart NFC ships an update fortnightly, JSON Navigator every 2 weeks. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.
| Parameter | Smart NFC | JSON Navigator |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 4.5 (92 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 47.6% of reviews | 66.7% of reviews — better |
| Number of ratings | 92 — better | 2 |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #39 | #33 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Alec O'Connor | Chase Higgins |
Customer experience
Smart NFC
JSON Navigator
In-app purchases
Smart NFC
No in-app purchases
JSON Navigator
No in-app purchases








