DHD FLY vs Pipe Pressure drop calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DHD FLY
Control a toy quadrocopter in real-time using your device. Stream live video directly from the drone to your screen.
- Quadrocopter control
- Real-time video transfer
- WiFi connectivity
- Supports multiple iOS versions
- Compatible with various iPhone models
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A toy quadrocopter control by wifi with video transfer real time. Support iOS 7 ,iOS 8, iOS 9,iOS 10,iPhone 5 ,iPhone 5c,iPhone 5s, iPhone 6, iPhone 6 plus, iPhone 6s, iPhone 6s plus, iPhone 7, iPhone 7 plus
Pipe Pressure drop calculator
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Easily calculate pipe pressure drop, friction loss, and liquid velocity using the Darcy–Weisbach equation. This app is designed for engineers, plumbers, HVAC designers, and fluid mechanics students who need fast and accurate results for fluid flow in pipes. Features : - Choose from 76 pipe materials (steel, copper, PVC, and more) - Select from 58 types of liquids (water, oil, chemicals, etc.) - Pipe diameters up to 84 inches (2100 mm) supported - Calculate pressure loss, velocity, and head loss in seconds - Useful for pipeline design, hydraulic systems, and industrial applications Whether you’re working on plumbing design, HVAC systems, industrial pipelines, or academic projects, this app gives you a reliable way to calculate fluid flow and optimize your designs. Download now and make pipe pressure loss calculations faster, easier, and more accurate. In-app purchase Details: Lifetime Access for ads free version Privacy Policy : https://applicationcontent.wordpress.com/privacy-policy/ Terms of use : https://applicationcontent.wordpress.com/terms-of-use/
Screenshots
Verdict
The clearest difference is rating: Pipe Pressure drop calculator at 4.0 against DHD FLY's 3.0. DHD FLY's advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 3 months). On price, ads 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. Pipe Pressure drop calculator sells 1 one-off in-app purchase. DHD FLY asks for nothing beyond the download.
Pipe Pressure drop calculator holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
DHD FLY ships an update every 2 weeks, Pipe Pressure drop calculator every 3 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | DHD FLY | Pipe Pressure drop calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 41 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | ShanTou City Vison Electronictechnology Co., Ltd. | Ashvin Kevadiya |
In-app purchases
DHD FLY
No in-app purchases
Pipe Pressure drop calculator
- Lifetime Premium$7.99
Questions
Is DHD FLY free?
Is Pipe Pressure drop calculator free?
Which has better reviews, DHD FLY or Pipe Pressure drop calculator?
Do DHD FLY or Pipe Pressure drop calculator have ads?
Which is updated more often, DHD FLY or Pipe Pressure drop calculator?
Other comparisons
