Comparison

Smart NFC vs JSON Navigator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

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.

Highlights
  • Instant JSON visualization
  • Interactive tree-view interface
  • Data type indicators
  • Expand/collapse nodes
  • Customizable light/dark themes
Features
Read full description

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

Smart NFC4 screens
JSON Navigator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 6 level
Smart NFC versus JSON Navigator: the parameters behind the verdict, then further details
ParameterSmart NFCJSON Navigator
Price$1.99$0.99 — better
Rating4.5 (92 ratings)5.0 (2 ratings) — better
Positive reviews47.6% of reviews66.7% of reviews — better
Number of ratings92 — better2
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#39#33 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.0
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperAlec O'ConnorChase Higgins

Customer experience

Smart NFC

All ratings92 ratings
Positive87.0%
Neutral2.2%
Negative10.9%
Written reviews21 reviews
Positive47.6%
Neutral14.3%
Negative38.1%

JSON Navigator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

Smart NFC

No in-app purchases

None

JSON Navigator

No in-app purchases

Questions

Is Smart NFC free?
Smart NFC costs $1.99, with no in-app purchases.
Is JSON Navigator free?
JSON Navigator costs $0.99, with no in-app purchases.
Which has better reviews, Smart NFC or JSON Navigator?
JSON Navigator is rated higher. Smart NFC averages 4.5 out of 5 from 92 ratings, while JSON Navigator averages 5.0 from 2 ratings.
Do Smart NFC or JSON Navigator have ads?
Neither Smart NFC nor JSON Navigator shows ads.
Which is updated more often, Smart NFC or JSON Navigator?
Smart NFC ships an update fortnightly, and JSON Navigator every 2 weeks. Most recently, Smart NFC was updated on September 29, 2026 and JSON Navigator on October 1, 2026.
Which is more popular, Smart NFC or JSON Navigator?
Smart NFC currently peaks at #39 in the App Store charts, and JSON Navigator at #33. Chart position reflects recent download velocity rather than total install base.

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