# ECOGARD EXPRESS FILTER GUIDE vs A/C Pro

The clearest difference is update cadence: A/C Pro at every 4 months against ECOGARD EXPRESS FILTER GUIDE's every 9 months. ECOGARD EXPRESS FILTER GUIDE's advantage is iOS requirement (11.0 vs 13.0). 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.

ECOGARD EXPRESS FILTER GUIDE ships an update every 9 months, A/C Pro every 4 months. The most recent releases landed on September 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | ECOGARD EXPRESS FILTER GUIDE | A/C Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (293 ratings)](https://appshunter.io/ios/app/ac-pro/id1496953441/reviews)** |
| Number of ratings | — | **293** |
| Positive reviews | — | 27.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 3 MB | 192 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Premium Guard Inc.](https://appshunter.io/developer/1556625190) | [Energizer](https://appshunter.io/developer/1346066670) |

## What reviewers say

### ECOGARD EXPRESS FILTER GUIDE

[App page](https://appshunter.io/ios/app/ecogard-express-filter-guide/id1473311811)

**Features:** macOS Compatibility

**In-app purchases:** none


### A/C Pro

[App page](https://appshunter.io/ios/app/ac-pro/id1496953441)

This app guides you through recharging your vehicle's air conditioning system with step-by-step instructions tailored to your specific car. It offers video tutorials, helps locate the low side pressure port, and provides essential vehicle specifications for a successful DIY recharge.

**Highlights:** Step-by-step vehicle-specific instructions, Bluetooth connectivity with Smartcharge™ gauge, Instructional videos, Low side port finder, A/C spec database, Troubleshooting guide

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful step-by-step instructions
- 🚀 Effective at recharging AC
- 👍 Clear and informative videos

**What reviewers complain about**

- 🐛 App crashes or doesn't work
- 🐛 UPC code not recognized
- 🐛 Incorrect vehicle information
- 🔒 Requires too many permissions
- 🔒 Forced to create account

**Reported bugs**

- App crashes when trying to enter UPC code
- Vehicle information not loading properly
- Bluetooth connection issues

**Requested features**

- Option to bypass app and use analog gauge
- More comprehensive vehicle database
- Closed captions for instructional videos


## Frequently asked questions

### Is ECOGARD EXPRESS FILTER GUIDE free?

ECOGARD EXPRESS FILTER GUIDE is free to download, with no in-app purchases.

### Is A/C Pro free?

A/C Pro is free to download, with no in-app purchases.

### Do ECOGARD EXPRESS FILTER GUIDE or A/C Pro have ads?

Neither ECOGARD EXPRESS FILTER GUIDE nor A/C Pro shows ads.

### Which is updated more often, ECOGARD EXPRESS FILTER GUIDE or A/C Pro?

ECOGARD EXPRESS FILTER GUIDE ships an update every 9 months, and A/C Pro every 4 months. Most recently, ECOGARD EXPRESS FILTER GUIDE was updated on September 15, 2026 and A/C Pro on October 12, 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.*