# Spectrum SD vs C4HSecure

The clearest difference is rating: C4HSecure at 2.3 against Spectrum SD's 1.7. Spectrum SD's advantage is ratings volume (43 vs 12) and iOS requirement (9.0 vs 16.6). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

C4HSecure holds the better App Store score, 2.3 against 1.7. Both are backed by a comparable volume of ratings — 43 and 12 respectively. Written reviews complicate that: 22% of Spectrum SD's written reviews are positive against 20% of C4HSecure's, so the app with the better star average is not the one people write more warmly about.

Spectrum SD ships an update every 2 months, C4HSecure every 5 weeks. The most recent releases landed on September 9, 2026 and August 3, 2026 respectively.

## The numbers

| Metric | Spectrum SD | C4HSecure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (43 ratings)](https://appshunter.io/ios/app/spectrum-sd/id719782523/reviews) | **[2.3 (12 ratings)](https://appshunter.io/ios/app/c4hsecure/id1497828978/reviews)** |
| Number of ratings | **43** | 12 |
| Positive reviews | **22.2% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 69 MB | 51 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Amtelco](https://appshunter.io/developer/362337074) | [Call 4 Health, Inc.](https://appshunter.io/developer/1545062391) |

## What reviewers say

### Spectrum SD

[App page](https://appshunter.io/ios/app/spectrum-sd/id719782523)

This app offers secure messaging and paging for businesses, ensuring HIPAA and HITECH compliance. It allows for encrypted communication of protected health information and provides features like message filtering, custom replies, and adjustable security settings.

**Highlights:** Secure messaging and paging, HIPAA and HITECH compliant, Encrypted data transmission, Configurable passcode protection, Message filtering and history, Pre-set custom replies and notes, Adjustable auto-logoff settings

**Features:** macOS Compatibility

**In-app purchases:** none


### C4HSecure

[App page](https://appshunter.io/ios/app/c4hsecure/id1497828978)

This platform offers secure messaging, on-call scheduling, and personalized support for healthcare professionals. It ensures HIPAA compliance and protects sensitive health information with features like biometric login and message filtering.

**Highlights:** HIPAA-compliant secure messaging, Biometric authentication (Face ID, Touch ID), On-call schedule management, Message composition and filtering, Customizable notification settings, Password reset with OTP

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spectrum SD free?

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

### Is C4HSecure free?

C4HSecure is free to download, with no in-app purchases.

### Which has better reviews, Spectrum SD or C4HSecure?

C4HSecure is rated higher. Spectrum SD averages 1.7 out of 5 from 43 ratings, while C4HSecure averages 2.3 from 12 ratings.

### Do Spectrum SD or C4HSecure have ads?

Neither Spectrum SD nor C4HSecure shows ads.

### Which is updated more often, Spectrum SD or C4HSecure?

Spectrum SD ships an update every 2 months, and C4HSecure every 5 weeks. Most recently, Spectrum SD was updated on September 9, 2026 and C4HSecure on August 3, 2026.

---

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