# Emf Detector Radiation Reader vs HyperCard

The clearest difference is in-app purchases: HyperCard at none against Emf Detector Radiation Reader's 5. HyperCard also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). Emf Detector Radiation Reader's advantage is update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Emf Detector Radiation Reader sells 5 in-app purchases, starting at $4.99 per 7 days. HyperCard asks for nothing beyond the download.

Emf Detector Radiation Reader ships an update every 3 weeks, HyperCard every 2 months. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Emf Detector Radiation Reader | HyperCard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.3K ratings)](https://appshunter.io/ios/app/emf-detector-radiation-reader/id1588868540/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 76 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bello Studios LLC](https://appshunter.io/developer/1540574147) | [Jiafan Yong](https://appshunter.io/developer/1476403506) |

## What reviewers say

### Emf Detector Radiation Reader

[App page](https://appshunter.io/ios/app/emf-detector-radiation-reader/id1588868540)

Detect and track magnetic fields and potential EMF sources around you. Receive warnings for high readings and access guidelines for safe exposure levels. Monitor your environment and protect your health.

**Highlights:** Track magnetic fields and high readings, Detects ferromagnetic metals, Electrosmog (EMP) detector, Identifies home appliance EMF sources, Radio-Frequency Guidelines table, Warning beep for emissions, Stores readings with date stamps

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| 1 Year Premium | $12.99 | per year |
| Enjoy All The Features | $0.99 | one-time |
| Premium Pack - All Features | $4.99 | one-time |
| Lifetime Access | $14.99 | one-time |

**What reviewers like**

- 🚀 Accurate readings
- 🔒 Helpful for detecting hidden devices
- 👍 Visually appealing interface
- 👍 Easy to use
- 👍 Consistent performance

**What reviewers complain about**

- 🐛 Frequent ads even in paid version
- 🐛 Inconsistent or inaccurate readings in some cases
- 🔋 Drains device battery quickly
- 👎 Lack of clear instructions on interpreting readings

**Reported bugs**

- Readout digits overlapping on screen
- Inconsistent behavior of sound indicator

**Requested features**

- Ability to compare readings over time
- Option to export/share recorded data
- More detailed information on safe/unsafe EMF levels
- Integration with other EMF monitoring devices


### HyperCard

[App page](https://appshunter.io/ios/app/hypercard/id6759632749)

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

**In-app purchases:** none


## Frequently asked questions

### Is Emf Detector Radiation Reader free?

Emf Detector Radiation Reader is free to download, with in-app purchases available.

### Is HyperCard free?

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

### Do Emf Detector Radiation Reader or HyperCard have ads?

Emf Detector Radiation Reader shows ads; HyperCard does not.

### Which is updated more often, Emf Detector Radiation Reader or HyperCard?

Emf Detector Radiation Reader ships an update every 3 weeks, and HyperCard every 2 months. Most recently, Emf Detector Radiation Reader was updated on October 15, 2026 and HyperCard on October 2, 2026.

---

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