# SD Toolkit vs Skylar Enterprise

The clearest difference is update cadence: Skylar Enterprise at every 3 months against SD Toolkit's every 27 months. SD Toolkit's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SD Toolkit ships an update every 27 months, Skylar Enterprise every 3 months. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SD Toolkit | Skylar Enterprise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sd-toolkit/id1618642110/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 45 MB | 54 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Satcom Direct](https://appshunter.io/developer/447415249) | [BroTecs Technologies, LLC.](https://appshunter.io/developer/835813072) |

## What reviewers say

### SD Toolkit

[App page](https://appshunter.io/ios/app/sd-toolkit/id1618642110)

Troubleshoot aviation satcom terminals via serial connection. This tool helps diagnose and resolve issues with satellite communication equipment used in aircraft.

**Highlights:** Troubleshoot satcom terminals, Serial connection support, Aviation specific, Diagnose communication issues

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

**In-app purchases:** none


### Skylar Enterprise

[App page](https://appshunter.io/ios/app/skylar-enterprise/id6476139772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SD Toolkit free?

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

### Is Skylar Enterprise free?

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

### Do SD Toolkit or Skylar Enterprise have ads?

Neither SD Toolkit nor Skylar Enterprise shows ads.

### Which is updated more often, SD Toolkit or Skylar Enterprise?

SD Toolkit ships an update every 27 months, and Skylar Enterprise every 3 months. Most recently, SD Toolkit was updated on October 10, 2026 and Skylar Enterprise on October 9, 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.*