Comparison

PipeChecker vs Volume Converter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Optimal pressure pipe sizing
  • Simplified operation
  • For piping equipment technicians
  • Supports HVAC, sanitary, and plant systems
Features
Read full description

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。

About

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.

Highlights
  • Converts volume and capacity units
  • Supports metric, US, UK, and Japanese units
  • Instant conversion results
  • Simple and intuitive interface
  • Offline functionality
Features
Read full description

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

PipeChecker4 screens
Volume Converter2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
PipeChecker versus Volume Converter: the parameters behind the verdict, then further details
ParameterPipeCheckerVolume Converter
Price$7.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 4 months — betterEvery 10 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size27 MB29 MB
Age rating4+4+
DeveloperAIR DESIGN, INC.kota tada

Customer experience

PipeChecker

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Volume Converter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PipeChecker

No in-app purchases

2 purchases

Volume Converter

Subscriptions2
  • Ad-free for 1 month7 Days trial$4.991 Month
  • Ad-free for 1 year14 Days trial$49.991 Year

Questions

Is PipeChecker free?
PipeChecker costs $7.99, with no in-app purchases.
Is Volume Converter free?
Volume Converter is free to download, with in-app purchases available.
Do PipeChecker or Volume Converter have ads?
Volume Converter shows ads; PipeChecker does not.
Which is updated more often, PipeChecker or Volume Converter?
PipeChecker ships an update every 4 months, and Volume Converter every 10 months. Most recently, PipeChecker was updated on November 3, 2026 and Volume Converter on October 30, 2026.

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