IN Pocket Reference vs Castel Selector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IN Pocket Reference
A mobile reference guide for home inspectors, offering quick charts and data for use during inspections. Features are designed to scale with screen size for easy viewing. More content is planned for future updates.
- Quick charts and references
- Designed for professional inspectors
- Scalable charts for screen size
- Reference data for home inspections
- Feature requests welcomed
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This app serves as a quick reference guide for professional members of Inspector Nation. It contains a number of quick charts and references to use during your home inspections. More features to come! Reach out to us if you would like to request a feature! Charts will scale in size with your screen to use directly during an inspection.
Castel Selector
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Castel selection app is able to help you through the design of systems by choosing the correct valve within your system. This software is able to size all Castel products, indicating theirs behaviour according to the installation branch and the gas used, providing the appropriate pressure drop value used for each selection. With this app you are able to generate a report with all the information about circuit and about selection.
Screenshots
Verdict
The clearest difference is update cadence: IN Pocket Reference at every 2 weeks against Castel Selector's every 6 weeks. IN Pocket Reference also leads on iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IN Pocket Reference ships an update every 2 weeks, Castel Selector every 6 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | IN Pocket Reference | Castel Selector |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 18 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Gregory Enterprises | Castel S.r.l. |
In-app purchases
IN Pocket Reference
No in-app purchases
Castel Selector
No in-app purchases
Questions
Is IN Pocket Reference free?
Is Castel Selector free?
Do IN Pocket Reference or Castel Selector have ads?
Which is updated more often, IN Pocket Reference or Castel Selector?
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