Castel Selector vs InArneg
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
InArneg
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Accedi facilmente ai documenti utili e ricevi tutti gli aggiornamenti sulle attività di Arneg in materia di Qualità, Sicurezza, Ambiente e Marketing.
Screenshots
Verdict
The clearest difference is update cadence: Castel Selector at every 6 weeks against InArneg's every 3 months. InArneg's advantage is iOS requirement (12.5 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.
Castel Selector ships an update every 6 weeks, InArneg every 3 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.
| Parameter | Castel Selector | InArneg |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 12.5 — better |
| Further details — not scored | ||
| Size | 26 MB | 149 MB |
| Age rating | 4+ | 17+ |
| Developer | Castel S.r.l. | PS.Mobile srl |
In-app purchases
Castel Selector
No in-app purchases
InArneg
No in-app purchases









