# HarbisonWalker Mobile Tools vs VoxSMS

The clearest difference is ratings volume: HarbisonWalker Mobile Tools at 4 against VoxSMS's 1. HarbisonWalker Mobile Tools also leads on iOS requirement (11.0 vs 13.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for HarbisonWalker Mobile Tools against 5.0 for VoxSMS. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Both ship on a similar rhythm, roughly every 10 months. The most recent releases landed on July 31, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | HarbisonWalker Mobile Tools | VoxSMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/harbisonwalker-mobile-tools/id918657435/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/voxsms/id1514259980/reviews) |
| Number of ratings | **4** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | Every 10 months |
| Monetization | Free | Free |
| Size | 31 MB | 66 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harbisonwalker International Holdings, Inc.](https://appshunter.io/developer/804111234) | [Textable](https://appshunter.io/developer/1395042035) |

## What reviewers say

### HarbisonWalker Mobile Tools

[App page](https://appshunter.io/ios/app/harbisonwalker-mobile-tools/id918657435)

This app helps users calculate water needed for refractory monolithic products. It also provides access to product safety data sheets and a locator for the nearest global sourcing center.

**Highlights:** Water Mix Calculator, Product Safety Data Sheets, Global Sourcing Center Locator, Refractory Monolithics Information

**Features:** macOS Compatibility

**In-app purchases:** none


### VoxSMS

[App page](https://appshunter.io/ios/app/voxsms/id1514259980)

Communicate via SMS using your dedicated business phone numbers. This app allows you to send and receive text messages directly from your mobile device, integrating seamlessly with your existing service.

**Highlights:** Send and receive SMS, Use business phone numbers, Mobile messaging, Voxtelesys integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HarbisonWalker Mobile Tools free?

HarbisonWalker Mobile Tools is free to download, with no in-app purchases.

### Is VoxSMS free?

VoxSMS is free to download, with no in-app purchases.

### Which has better reviews, HarbisonWalker Mobile Tools or VoxSMS?

HarbisonWalker Mobile Tools and VoxSMS are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do HarbisonWalker Mobile Tools or VoxSMS have ads?

Neither HarbisonWalker Mobile Tools nor VoxSMS shows ads.

### Which is updated more often, HarbisonWalker Mobile Tools or VoxSMS?

HarbisonWalker Mobile Tools ships an update every 10 months, and VoxSMS every 10 months. Most recently, HarbisonWalker Mobile Tools was updated on July 31, 2026 and VoxSMS on September 21, 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.*