# SMART Pro/R Service Tool vs Zeus Ordering

The clearest difference is rating: Zeus Ordering at 1.9 against SMART Pro/R Service Tool's 1.5. Zeus Ordering also leads on ratings volume (185 vs 24) and update cadence (every 3 weeks vs every 6 weeks). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Zeus Ordering holds the better App Store score, 1.9 against 1.5. That said, the two scores are not equally well evidenced: Zeus Ordering has 185 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 11% of SMART Pro/R Service Tool's written reviews are positive against 16% of Zeus Ordering's.

SMART Pro/R Service Tool ships an update every 6 weeks, Zeus Ordering every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | SMART Pro/R Service Tool | Zeus Ordering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (24 ratings)](https://appshunter.io/ios/app/smart-pror-service-tool/id1067668522/reviews) | **[1.9 (185 ratings)](https://appshunter.io/ios/app/zeus-ordering/id1521493903/reviews)** |
| Number of ratings | 24 | **185** |
| Positive reviews | 11.1% of reviews | **16.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 62 MB | 156 MB |
| Requires iOS | 26.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Parker Hannifin Corporation](https://appshunter.io/developer/491113305) | [SDI Inc.](https://appshunter.io/developer/1521493905) |

## What reviewers say

### SMART Pro/R Service Tool

[App page](https://appshunter.io/ios/app/smart-pror-service-tool/id1067668522)

This tool helps HVACR technicians quickly calculate superheat and subcooling using embedded refrigerant data and Bluetooth sensors. It allows for data recording, custom PDF report generation, and sharing of findings.

**Highlights:** Temperature and pressure difference calculation, Superheat and subcooling calculation, Embedded refrigerant data, Record data and generate PDF reports, Customizable display and selectable units, Over 115 refrigerants supported

**In-app purchases:** none


### Zeus Ordering

[App page](https://appshunter.io/ios/app/zeus-ordering/id1521493903)

This app streamlines procurement for MRO, PPE, and indirect supply needs. It offers eProcurement software with extensive category access, data analytics for efficiency insights, and automation to reduce repetitive tasks. Storeroom technology enables accurate inventory management and tracking.

**Highlights:** eProcurement software, Data analytics and dynamic sourcing, Robotic process automation, Mobile storeroom technology, Inventory management system, Barcode scanning

**In-app purchases:** none

**What reviewers like**

- 👍 Getting better over time
- 👍 Good for ordering parts
- 👍 Easy to use for knowledgeable users
- 👍 Innovation in MRO space
- 👍 Real-time order visibility

**What reviewers complain about**

- 🐛 Constantly crashes
- 🐛 Frequent error messages
- 🐛 Lost connection issues
- 🐛 No pictures for parts
- 🐛 Incorrect part descriptions

**Reported bugs**

- Constantly crashes
- Frequent error messages
- Lost connection
- App doesn't log in
- Server is down

**Requested features**

- Add pictures for parts
- Improve part descriptions with details
- Allow direct communication with suppliers
- Ability to send pictures in comments
- Add ability to copy from catalog to paste elsewhere


## Frequently asked questions

### Is SMART Pro/R Service Tool free?

SMART Pro/R Service Tool is free to download, with no in-app purchases.

### Is Zeus Ordering free?

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

### Which has better reviews, SMART Pro/R Service Tool or Zeus Ordering?

Zeus Ordering is rated higher. SMART Pro/R Service Tool averages 1.5 out of 5 from 24 ratings, while Zeus Ordering averages 1.9 from 185 ratings.

### Do SMART Pro/R Service Tool or Zeus Ordering have ads?

Neither SMART Pro/R Service Tool nor Zeus Ordering shows ads.

### Which is updated more often, SMART Pro/R Service Tool or Zeus Ordering?

SMART Pro/R Service Tool ships an update every 6 weeks, and Zeus Ordering every 3 weeks. Most recently, SMART Pro/R Service Tool was updated on October 24, 2026 and Zeus Ordering on October 24, 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.*