PipeChecker vs Volume Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PipeChecker
This tool assists HVAC, sanitary, and plant piping engineers in selecting optimal pressure piping sizes with simple operations. It streamlines the design process for piping equipment technicians.
- Optimal pressure pipe sizing
- Simplified operation
- For piping equipment technicians
- Supports HVAC, sanitary, and plant systems
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このプログラムは、空調・衛生・プラント等の配管設備技術者のためのツールです。簡単な操作で最適な配管(圧力配管)サイズを選択できます。
Volume Converter
This versatile tool converts volume and capacity units across many systems, including metric, US, UK, and traditional Japanese measurements. Its simple, intuitive interface provides instant results, making it useful for professionals and students in fields like engineering, cooking, and architecture. The app functions offline, ensuring accessibility anywhere.
- Converts volume and capacity units
- Supports metric, US, UK, and Japanese units
- Instant conversion results
- Simple and intuitive interface
- Offline functionality
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Easily convert volume and capacity units with this app. It supports common units like m³, L, and mL, as well as US units (gal, qt, pt, cup, fl oz, tbsp, tsp), UK units (gal(UK), qt(UK), pt(UK)), and even traditional Japanese units such as koku, to, sho, and go.\n\nThis app is useful for fields like architecture, engineering, chemistry, physics, cooking, and education. Its simple UI allows intuitive operation—just enter a value and get instant results.\n\nIt works offline, so you can use it anywhere without internet access. Ideal for professionals and casual users alike!\n\n【Main Features】\n- Supports various units (L, mL, gallons, cups, Japanese sho, etc.)\n- Instantly converts values with a simple design\n- Usable offline\n- Intuitive interface\n\nTry this volume and capacity unit converter today!
Screenshots
Verdict
The clearest difference is price: Volume Converter at Free against PipeChecker's $7.99. PipeChecker's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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
Volume Converter is free to download; PipeChecker costs $7.99 up front. Volume Converter sells 2 in-app purchases, starting at $4.99 per month. PipeChecker asks for nothing beyond the download.
PipeChecker ships an update every 4 months, Volume Converter every 10 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | PipeChecker | Volume Converter |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months — better | Every 10 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | AIR DESIGN, INC. | kota tada |
Customer experience
PipeChecker
Volume Converter
In-app purchases
PipeChecker
No in-app purchases
Volume Converter
- Ad-free for 1 month7 Days trial$4.991 Month
- Ad-free for 1 year14 Days trial$49.991 Year
Questions
Is PipeChecker free?
Is Volume Converter free?
Do PipeChecker or Volume Converter have ads?
Which is updated more often, PipeChecker or Volume Converter?
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