# RSD Notes vs Lennox Prodigy

The clearest difference is review sentiment: RSD Notes at 100% against Lennox Prodigy's 25%. RSD Notes also leads on rating (5.0 vs 4.3) and update cadence (monthly vs every 7 months). Lennox Prodigy's advantage is ratings volume (12 vs 3). 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.

RSD Notes holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 12 respectively. Written reviews point the same way: 100% of RSD Notes's written reviews are positive against 25% of Lennox Prodigy's.

RSD Notes ships an update monthly, Lennox Prodigy every 7 months. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | RSD Notes | Lennox Prodigy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rsd-notes/id639483216/reviews)** | [4.3 (12 ratings)](https://appshunter.io/ios/app/lennox-prodigy/id802832431/reviews) |
| Number of ratings | 3 | **12** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free | Free |
| Size | 54 MB | 1 MB |
| Requires iOS | **13.4** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Refrigeration Supplies Distributor](https://appshunter.io/developer/639483219) | [Lennox Industries](https://appshunter.io/developer/355049651) |

## What reviewers say

### RSD Notes

[App page](https://appshunter.io/ios/app/rsd-notes/id639483216)

Organize your job-related information with this app. Create notes, attach media, and easily find store locations. Access a built-in refrigerant pressure-temperature chart for quick reference.

**Highlights:** Create and store notes, Attach photos, videos, and voice recordings, Find RSD store locations with GPS, Built-in refrigerant PT chart, Email notes to RSD employee, Corporate contact information

**Features:** macOS Compatibility

**In-app purchases:** none


### Lennox Prodigy

[App page](https://appshunter.io/ios/app/lennox-prodigy/id802832431)

Access technical information, troubleshooting guides, and how-to videos for a rooftop unit control system. This app serves as a central database for service and installation needs, minimizing the reliance on printed materials.

**Highlights:** How-to videos, Technical literature access, Alarm lookup tables, Step-by-step troubleshooting, Searchable configuration parameters, Frequently Asked Questions

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RSD Notes free?

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

### Is Lennox Prodigy free?

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

### Which has better reviews, RSD Notes or Lennox Prodigy?

RSD Notes is rated higher. RSD Notes averages 5.0 out of 5 from 3 ratings, while Lennox Prodigy averages 4.3 from 12 ratings.

### Do RSD Notes or Lennox Prodigy have ads?

Neither RSD Notes nor Lennox Prodigy shows ads.

### Which is updated more often, RSD Notes or Lennox Prodigy?

RSD Notes ships an update monthly, and Lennox Prodigy every 7 months. Most recently, RSD Notes was updated on October 2, 2026 and Lennox Prodigy on October 16, 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.*