# STS vs Wisp

The clearest difference is in-app purchases: STS at none against Wisp's 2. STS also leads on update cadence (every 2 weeks vs monthly) and iOS requirement (13.2 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Wisp sells 2 one-off in-app purchases. STS asks for nothing beyond the download.

STS ships an update every 2 weeks, Wisp monthly. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | STS | Wisp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/wisp-full-screen-browser/id6756587346/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | — | Free |
| Size | 12 MB | 2 MB |
| Requires iOS | **13.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [中铁工程装备集团有限公司](https://appshunter.io/developer/1447605449) | [Tony Sundharam](https://appshunter.io/developer/1585189351) |

## What reviewers say

### STS

[App page](https://appshunter.io/ios/app/sts-mobile/id1538528756)

**In-app purchases:** none


### Wisp

[App page](https://appshunter.io/ios/app/wisp-full-screen-browser/id6756587346)

This app offers a completely frameless web browsing experience, removing all UI elements for maximum immersion. It's ideal for cloud gaming, kiosks, and digital signage, providing a clean, edge-to-edge display.

**Highlights:** Frameless browsing experience, Optimized for cloud gaming, iOS Game Mode integration, Customizable gesture navigation, Always-On mode for kiosks, Privacy-focused design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Res Streams | $1.99 | one-time |
| Advanced Gesture Zones | $3.99 | one-time |


## Frequently asked questions

### Is STS free?

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

### Is Wisp free?

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

### Do STS or Wisp have ads?

Neither STS nor Wisp shows ads.

### Which is updated more often, STS or Wisp?

STS ships an update every 2 weeks, and Wisp monthly. Most recently, STS was updated on October 18, 2026 and Wisp on October 16, 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.*