TBD vs Pipe Pressure drop calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TBD
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TBD-flowmeter is a companion software that monitors your daily water equipment, giving you a clear picture of your water usage; and a smarter way to track and reduce water usage based on your water bill
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 in-app purchases: TBD at none against Pipe Pressure drop calculator's 1. TBD also leads on update cadence (every 5 weeks vs every 3 months). 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. Pipe Pressure drop calculator sells 1 one-off in-app purchase. TBD asks for nothing beyond the download.
TBD ships an update every 5 weeks, Pipe Pressure drop calculator every 3 months. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.
| Parameter | TBD | Pipe Pressure drop calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 3 months |
| 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 | 19 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Hangzhou Dashi Wisdom Technology Co., Ltd. | Ashvin Kevadiya |
In-app purchases
TBD
No in-app purchases
Pipe Pressure drop calculator
- Lifetime Premium$7.99
Questions
Is TBD free?
Is Pipe Pressure drop calculator free?
Do TBD or Pipe Pressure drop calculator have ads?
Which is updated more often, TBD or Pipe Pressure drop calculator?
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