# Volume Units Converter vs TriCalc

The clearest difference is price: TriCalc at Free against Volume Units Converter's $1.99. TriCalc also leads on update cadence (daily vs every 32 months) and iOS requirement (13.0 vs 15.0). Volume Units Converter's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

TriCalc is free to download; Volume Units Converter costs $1.99 up front. TriCalc sells 1 one-off in-app purchase. Volume Units Converter asks for nothing beyond the download.

Volume Units Converter ships an update every 32 months, TriCalc daily. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Volume Units Converter | TriCalc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/volume-units-converter/id1443940327/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 32 months | **Daily** |
| Monetization | Paid | — |
| Size | 1 MB | 26 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [KAKARO LLC](https://appshunter.io/developer/1869891225) |

## What reviewers say

### Volume Units Converter

[App page](https://appshunter.io/ios/app/volume-units-converter/id1443940327)

Easily convert volume measurements between 18 different units. Simply input your value and select the desired units for instant conversion. Supports a wide range of common and specialized volume measurements.

**Highlights:** Converts between 18 volume units, Supports cubic meters, liters, gallons, and more, Intuitive input and unit selection, Displays converted values instantly, Covers UK and US liquid/dry measurements

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### TriCalc

[App page](https://appshunter.io/ios/app/tricalc/id6757951248)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $1.99 | one-time |


## Frequently asked questions

### Is Volume Units Converter free?

Volume Units Converter costs $1.99, with no in-app purchases.

### Is TriCalc free?

TriCalc is free to download, with in-app purchases available.

### Do Volume Units Converter or TriCalc have ads?

TriCalc shows ads; Volume Units Converter does not.

### Which is updated more often, Volume Units Converter or TriCalc?

Volume Units Converter ships an update every 32 months, and TriCalc daily. Most recently, Volume Units Converter was updated on October 10, 2026 and TriCalc on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*