# KvantPhone vs Quanta

The clearest difference is in-app purchases: Quanta at none against KvantPhone's 3. KvantPhone's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. KvantPhone sells 3 in-app purchases, starting at $2.99 per month. Quanta asks for nothing beyond the download.

KvantPhone ships an update every 2 weeks, Quanta monthly. The most recent releases landed on October 30, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | KvantPhone | Quanta |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | — | Free |
| Size | 103 MB | 74 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Arenim Infosec Kft.](https://appshunter.io/developer/1595599782) | [Titanium Secure Services, LLC](https://appshunter.io/developer/1700131412) |

## What reviewers say

### KvantPhone

[App page](https://appshunter.io/ios/app/kvantphone/id1641683309)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $2.99 | per month |
| Ultimate | $3.99 | per month |
| 250 extra credit | $0.99 | one-time |


### Quanta

[App page](https://appshunter.io/ios/app/quanta-enterprise-comms/id6455696374)

Secure your communications with quantum-resistant encryption for calls, messages, and file transfers. This app protects your data against future threats from quantum computing, offering end-to-end security and privacy controls.

**Highlights:** Quantum-resistant end-to-end encryption, Secure messaging, voice, and video calls, Confidential file transfers up to 100 MB, Disappearing messages with sender control, Zero Trust architecture, No communication content stored on servers, Independent hosting in the U.S.A.

**Features:** iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is KvantPhone free?

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

### Is Quanta free?

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

### Do KvantPhone or Quanta have ads?

Neither KvantPhone nor Quanta shows ads.

### Which is updated more often, KvantPhone or Quanta?

KvantPhone ships an update every 2 weeks, and Quanta monthly. Most recently, KvantPhone was updated on October 30, 2026 and Quanta on November 7, 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.*