# sensitivity.io vs Net Optimizer

The clearest difference is in-app purchases: sensitivity.io at none against Net Optimizer's 3. sensitivity.io also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). Net Optimizer's advantage is update cadence (every 3 weeks vs every 15 months). On price and device support there is nothing between them.

Both are free to download. Net Optimizer sells 3 in-app purchases, starting at $5.99 per month. sensitivity.io asks for nothing beyond the download.

sensitivity.io ships an update every 15 months, Net Optimizer every 3 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | sensitivity.io | Net Optimizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (3.1K ratings)](https://appshunter.io/ios/app/net-optimizer-optimize-ping/id1568708059/reviews)** |
| Number of ratings | — | **3.1K** |
| Positive reviews | — | 70.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 62 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CoSoSys](https://appshunter.io/developer/379244833) | [Ali Burak Goncu](https://appshunter.io/developer/1896771128) |

## What reviewers say

### sensitivity.io

[App page](https://appshunter.io/ios/app/sensitivityio/id1211192287)

**In-app purchases:** none


### Net Optimizer

[App page](https://appshunter.io/ios/app/net-optimizer-optimize-ping/id1568708059)

This app optimizes your internet connection by finding and connecting to the fastest DNS server available. It helps improve web surfing speeds and reduces lag and latency for online gaming.

**Highlights:** Find fastest DNS server, Improve web surfing speed, Reduce gaming lag and latency, Automatic network optimization, Supports mobile data and WiFi, Wide range of DNS server support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Net Optimizer 1 Month Premium | $5.99 | per month |
| Net Optimizer 3 Day Free Trial | $39.99 | per year |
| Net Optimizer 1 Year Premium | $39.99 | per year |

**What reviewers like**

- 🚀 Boosts internet speed
- 👍 Improves gaming performance
- 🚀 Increased download/upload speeds

**What reviewers complain about**

- 🐛 Causes disconnections and freezing
- 🔋 Slows down device performance
- 🐛 Unreliable and inconsistent

**Reported bugs**

- Login issues
- Frequent crashes
- Compatibility problems with older devices

**Requested features**

- More customization options
- Better server selection
- Improved compatibility with different devices


## Frequently asked questions

### Is sensitivity.io free?

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

### Is Net Optimizer free?

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

### Do sensitivity.io or Net Optimizer have ads?

Net Optimizer shows ads; sensitivity.io does not.

### Which is updated more often, sensitivity.io or Net Optimizer?

sensitivity.io ships an update every 15 months, and Net Optimizer every 3 weeks. Most recently, sensitivity.io was updated on October 5, 2026 and Net Optimizer on October 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.*