Comparison

HEMS 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

HEMS

Read full description

Home Energy Management System that provide measurement of Energy consumption, Environment and air pollution for example: Temperature, Humidity, PM2.5,etc. All data show on both Application and Website. This system also include the Air condition controller which user can control on remote area by using Application or Website.

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

HEMS3 screens
Volume Converter2 screens

Verdict

The call

The clearest difference is in-app purchases: HEMS at none against Volume Converter's 2. HEMS also leads on iOS requirement (11.0 vs 15.0). Volume Converter's advantage is device support. On price 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

Both are free to download. Volume Converter sells 2 in-app purchases, starting at $4.99 per month. HEMS asks for nothing beyond the download.

Scorecard3 real differences · 6 level
HEMS versus Volume Converter: the parameters behind the verdict, then further details
ParameterHEMSVolume Converter
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 10 months
Ads—Yes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
Devices—iPhone, iPad, iPod — better
Requires iOS11.0 — better15.0
Further details — not scored
Size53 MB29 MB
Age rating4+4+
DeveloperNDR Solution (Thailand) Co., Ltd.kota tada

In-app purchases

None

HEMS

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 HEMS free?
HEMS is free to download, with no in-app purchases.
Is Volume Converter free?
Volume Converter is free to download, with in-app purchases available.

Other comparisons