# WiPhone vs S4U

The clearest difference is in-app purchases: WiPhone at none against S4U's 1. S4U's advantage is update cadence (every 2 days vs every 13 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. S4U sells 1 one-off in-app purchase. WiPhone asks for nothing beyond the download.

WiPhone ships an update every 13 months, S4U every 2 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | WiPhone | S4U |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 98 MB | 118 MB |
| Requires iOS | 16.0 | **14.0.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Wimore S.r.l.](https://appshunter.io/developer/1610976453) | [Security for You](https://appshunter.io/developer/1880089873) |

## What reviewers say

### WiPhone

[App page](https://appshunter.io/ios/app/wiphone/id1660763338)

This internet telephony app allows you to make and receive calls using your smartphone over 4G and WiFi networks. It connects to a dedicated hosted switching system and optimizes bandwidth usage with small band codecs. An account from a VoIP provider is required to use this supplier-specific software.

**Highlights:** Make and receive calls, VoIP calls over 4G/WiFi, Optimized bandwidth usage, Connects to hosted switching system, Supplier-specific application

**In-app purchases:** none


### S4U

[App page](https://appshunter.io/ios/app/s4u-security-4-you/id6759669935)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| no_ads_lifetime | $3.99 | one-time |


## Frequently asked questions

### Is WiPhone free?

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

### Is S4U free?

S4U is free to download, with in-app purchases available.

### Do WiPhone or S4U have ads?

Neither WiPhone nor S4U shows ads.

### Which is updated more often, WiPhone or S4U?

WiPhone ships an update every 13 months, and S4U every 2 days. Most recently, WiPhone was updated on November 3, 2026 and S4U on November 5, 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.*