# ADC Urethane Systems vs US Air Compressor SmartCom

The clearest difference is ratings volume: US Air Compressor SmartCom at 31 against ADC Urethane Systems's 7. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for ADC Urethane Systems against 4.9 for US Air Compressor SmartCom. Both are backed by a comparable volume of ratings — 7 and 31 respectively.

ADC Urethane Systems ships an update every 3 months, US Air Compressor SmartCom every 2 months. The most recent releases landed on June 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ADC Urethane Systems | US Air Compressor SmartCom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/adc-urethane-systems/id1462098192/reviews)** | [4.9 (31 ratings)](https://appshunter.io/ios/app/us-air-compressor-smartcom/id1519572501/reviews) |
| Number of ratings | 7 | **31** |
| Positive reviews | — | 78.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 13 MB | 98 MB |
| Requires iOS | **11.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CODIFI LLC](https://appshunter.io/developer/1197506641) | [Us Air Compressor LLC](https://appshunter.io/developer/1519572503) |

## What reviewers say

### ADC Urethane Systems

[App page](https://appshunter.io/ios/app/adc-urethane-systems/id1462098192)

This free utility app provides users with essential tools for urethane products. It includes casting calculators, formulation search, and access to technical data sheets and safety data sheets.

**Highlights:** Casting calculators, Formulation search, Technical data sheets, US SDS access, Urethane product information

**Features:** macOS Compatibility

**In-app purchases:** none


### US Air Compressor SmartCom

[App page](https://appshunter.io/ios/app/us-air-compressor-smartcom/id1519572501)

Monitor and manage your air compressors remotely. Update compressor software, check service parts, order replacements, and perform self-diagnostics to ensure optimal performance.

**Highlights:** Monitor compressor parameters, Update compressor software online, Check service parts status, Order new service parts, Self-diagnose compressors

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly app
- 💡 Proactive maintenance reminders
- 🔌 Seamless connectivity
- 🔧 Efficient troubleshooting
- ⚡ Energy saving optimization

**What reviewers complain about**

- 🗑️ Cheaply built junk
- 💸 Overpriced service parts
- 💥 Equipment shutdowns
- 🔒 App acts as ransomware
- 📉 Production falling behind

**Reported bugs**

- Firmware update caused VFD to blow up
- App crashes when trying to connect
- App shuts down compressor at specific times
- Bluetooth doesn't connect with Apple phones
- App has glitches


## Frequently asked questions

### Is ADC Urethane Systems free?

ADC Urethane Systems is free to download, with no in-app purchases.

### Is US Air Compressor SmartCom free?

US Air Compressor SmartCom is free to download, with no in-app purchases.

### Which has better reviews, ADC Urethane Systems or US Air Compressor SmartCom?

ADC Urethane Systems is rated higher. ADC Urethane Systems averages 5.0 out of 5 from 7 ratings, while US Air Compressor SmartCom averages 4.9 from 31 ratings.

### Do ADC Urethane Systems or US Air Compressor SmartCom have ads?

Neither ADC Urethane Systems nor US Air Compressor SmartCom shows ads.

### Which is updated more often, ADC Urethane Systems or US Air Compressor SmartCom?

ADC Urethane Systems ships an update every 3 months, and US Air Compressor SmartCom every 2 months. Most recently, ADC Urethane Systems was updated on June 1, 2026 and US Air Compressor SmartCom on September 23, 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.*