# Sentry NFC vs Trace

The clearest difference is rating: Trace at 5.0 against Sentry NFC's 1.0. Trace also leads on update cadence (every 3 weeks vs every 14 months) and ratings volume (13 vs 1). Sentry NFC's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Trace sells 2 in-app purchases, starting at $20.00 per month. Sentry NFC asks for nothing beyond the download.

Trace holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Trace has 13 ratings behind it against 1, so its average is the more settled of the two.

Sentry NFC ships an update every 14 months, Trace every 3 weeks. The most recent releases landed on June 4, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Sentry NFC | Trace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sentry-nfc/id1604634174/reviews) | **[5.0 (13 ratings)](https://appshunter.io/ios/app/trace-ar-content-creation/id6749387472/reviews)** |
| Number of ratings | 1 | **13** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 200 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [SentryCard Technologies, Inc.](https://appshunter.io/developer/1604634176) | [Trace3d Inc](https://appshunter.io/developer/1532686125) |

## What reviewers say

### Sentry NFC

[App page](https://appshunter.io/ios/app/sentry-nfc/id1604634174)

This utility app enables users to enroll their biometric Sentry Card using their smartphone. It facilitates secure card management and access through your mobile device.

**Highlights:** Biometric Sentry Card enrollment, Phone-based card management, Secure access via smartphone, Card enrollment utility

**Features:** macOS Compatibility

**In-app purchases:** none


### Trace

[App page](https://appshunter.io/ios/app/trace-ar-content-creation/id6749387472)

Easily build and share immersive 3D holographic tours and augmented reality experiences. Add interactive elements, spatial videos, images, and 3D models to bring your creations to life. Publish instantly to any device, from phones to XR headsets.

**Highlights:** Create 3D holographic tours, Design spatial content, Add interactive elements, Publish to any device, Capture 3D scenes, Add spatial videos and images

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trace Creator - Monthly | $20.00 | per month |
| Trace Creator - Yearly | $191.99 | per year |


## Frequently asked questions

### Is Sentry NFC free?

Sentry NFC is free to download, with no in-app purchases.

### Is Trace free?

Trace is free to download, with in-app purchases available.

### Which has better reviews, Sentry NFC or Trace?

Trace is rated higher. Sentry NFC averages 1.0 out of 5 from 1 ratings, while Trace averages 5.0 from 13 ratings.

### Do Sentry NFC or Trace have ads?

Neither Sentry NFC nor Trace shows ads.

### Which is updated more often, Sentry NFC or Trace?

Sentry NFC ships an update every 14 months, and Trace every 3 weeks. Most recently, Sentry NFC was updated on June 4, 2026 and Trace on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*