i vs ProPump Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
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Control your Grandfar GEM Series smart circulation pumps anytime, anywhere! Grandfar GEM Remote – Your Smart Pumping Companion Take full command of your Grandfar GEM Series smart circulation pumps with this intuitive app. Designed for homeowners and professionals alike, the app empowers you to optimize water circulation systems effortlessly.
ProPump Calc
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ProPump Calc - QF is the essential offline tool for well installers and technicians to quickly select the best QF submersible pump for any job. Full access requires a paid subscription (auto-renewable monthly or yearly, with a 14-day free trial available on first use). No internet required — perfect for remote sites and fieldwork. Unlock detailed pump/motor recommendations, multi-pipe configurations, check valve placement guidance, and in-stock filtering with your subscription. Subscriptions are subject to Apple's standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/bluediamondfab.com/privacypolicy/home
Screenshots
Verdict
The clearest difference is in-app purchases: i at none against ProPump Calc's 2. ProPump Calc's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement 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. ProPump Calc sells 2 in-app purchases, starting at $8.99 per month. i asks for nothing beyond the download.
i ships an update every 6 weeks, ProPump Calc every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | i | ProPump Calc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 25 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Grandfar | Brandon Wright |
In-app purchases
i
No in-app purchases
ProPump Calc
- ProPump Monthly Subscription14 Days trial$8.991 Month
- ProPump Yearly Subscription14 Days trial$89.991 Year
