# NFC.cool Tools Tag Reader vs ZenSim

The clearest difference is rating: NFC.cool Tools Tag Reader at 4.5 against ZenSim's 3.7. NFC.cool Tools Tag Reader also leads on ratings volume (6.8K vs 3). ZenSim's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. NFC.cool Tools Tag Reader sells 10 in-app purchases, starting at $2.99 per month. ZenSim asks for nothing beyond the download.

NFC.cool Tools Tag Reader holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: NFC.cool Tools Tag Reader has 6.8K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 66% of NFC.cool Tools Tag Reader's written reviews are positive against 80% of ZenSim's, so the app with the better star average is not the one people write more warmly about.

NFC.cool Tools Tag Reader ships an update every 10 days, ZenSim fortnightly. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NFC.cool Tools Tag Reader | ZenSim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (6.8K ratings)](https://appshunter.io/ios/app/nfccool-tools-tag-reader/id1249686798/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/zensim/id6499236479/reviews) |
| Number of ratings | **6.8K** | 3 |
| Positive reviews | 66.2% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 106 MB | 52 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Nicolo Stanciu](https://appshunter.io/developer/930855677) | [ZenSim](https://appshunter.io/developer/1742862711) |

## What reviewers say

### NFC.cool Tools Tag Reader

[App page](https://appshunter.io/ios/app/nfccool-tools-tag-reader/id1249686798)

This app allows you to read and write NFC tags, scan and create QR codes, digitize documents, and capture 3D models. It offers advanced NFC tools like encryption and batch operations, alongside a versatile QR code scanner and document scanner with OCR.

**Highlights:** Read and write NFC tags, Scan and create QR codes, Digitize documents with OCR, Capture 3D models and room scans, Advanced NFC tools (encryption, batch operations), Customizable QR codes with logos, Automation and integration with iOS Shortcuts

**Features:** macOS Compatibility, Family Sharing, Apple Wallet

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited 3DT Monthly | $2.99 | per month |
| NFC.cool Scanner Monthly | $3.99 | per month |
| Ultra3DT Monthly | $4.99 | per month |
| Mini3DT Yearly | $17.49 | per year |
| Unlimited 3DT Yearly | $24.99 | per year |
| Unlimited7DT Yearly | $24.99 | per year |
| NFC.cool Scanner Yearly | $29.99 | per year |
| UnlimitedPro3DT Yearly | $34.99 | per year |
| Ultra3DT Yearly | $39.99 | per year |
| Ad-free | $6.99 | one-time |

**What reviewers like**

- 💯 Excellent app
- 🚀 Easy to use
- 👍 User-friendly
- 🔥 Awesome features
- 🎉 Great tool

**What reviewers complain about**

- 🐛 Crashes frequently
- 💰 Expensive subscription
- 📢 Too many ads
- 🚫 Doesn't work on older devices
- 🤔 Confusing interface

**Reported bugs**

- Unable to read certain NFC tags
- App freezes during NFC operations
- Compatibility issues with iOS 13 and newer
- Inconsistent behavior when writing tags

**Requested features**

- Add ability to clear/erase NFC tags
- Integrate with Shortcuts app
- Offline mode for writing NFC tags
- Add support for RFID tags
- Improve instructions and documentation


### ZenSim

[App page](https://appshunter.io/ios/app/zensim/id6499236479)

Manage your eSIMs and travel data plans with this app. Activate new eSIMs, purchase travel data, and monitor your account usage and plan details.

**Highlights:** Activate eSIMs, Purchase Travel eSIMs, Manage account, Check usage, Order add-ons, Change plan

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NFC.cool Tools Tag Reader free?

NFC.cool Tools Tag Reader is free to download, with in-app purchases available.

### Is ZenSim free?

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

### Which has better reviews, NFC.cool Tools Tag Reader or ZenSim?

NFC.cool Tools Tag Reader is rated higher. NFC.cool Tools Tag Reader averages 4.5 out of 5 from 6.8K ratings, while ZenSim averages 3.7 from 3 ratings.

### Do NFC.cool Tools Tag Reader or ZenSim have ads?

NFC.cool Tools Tag Reader shows ads; ZenSim does not.

### Which is updated more often, NFC.cool Tools Tag Reader or ZenSim?

NFC.cool Tools Tag Reader ships an update every 10 days, and ZenSim fortnightly. Most recently, NFC.cool Tools Tag Reader was updated on November 3, 2026 and ZenSim on October 24, 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.*