# iXTool vs Si

The clearest difference is review sentiment: Si at 33% against iXTool's 0%. Si also leads on update cadence (every 2 months vs every 7 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

iXTool ships an update every 7 months, Si every 2 months. The most recent releases landed on August 12, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | iXTool | Si |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/si-manifold/id1294563130/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 64 MB | 87 MB |
| Requires iOS | **11.0** | 12.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Resideo Technologies, Inc.](https://appshunter.io/developer/1437524946) | [SAUERMANN INDUSTRIE](https://appshunter.io/developer/1169513729) |

## What reviewers say

### iXTool

[App page](https://appshunter.io/ios/app/ixtool/id1270329852)

Connect appliances to your smartphone for easier installation and servicing. This tool supports various communication protocols, aiding technicians in their work.

**Highlights:** WiFi appliance connection, Smartphone integration, Commissioning support, Servicing assistance, OT, microcom, and Modbus support

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

**In-app purchases:** none


### Si

[App page](https://appshunter.io/ios/app/si-manifold/id1294563130)

Instantly and accurately displays numerous measurements like pressure and temperature for specific devices. It supports long-range Bluetooth connectivity and can store and update approximately 120 refrigerants, including environmentally friendly options.

**Highlights:** Real-time measurement display, Bluetooth 4.2 connectivity (up to 30m), Storage for ~120 refrigerants, Environmentally friendly refrigerant support, Updateable refrigerant database

**In-app purchases:** none


## Frequently asked questions

### Is iXTool free?

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

### Is Si free?

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

### Do iXTool or Si have ads?

Neither iXTool nor Si shows ads.

### Which is updated more often, iXTool or Si?

iXTool ships an update every 7 months, and Si every 2 months. Most recently, iXTool was updated on August 12, 2026 and Si on June 2, 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.*