# Stair Calculator vs VoiceControl

The clearest difference is rating: Stair Calculator at 4.1 against VoiceControl's 1.6. Stair Calculator also leads on ratings volume (740 vs 14) and review sentiment (21% vs 0%). VoiceControl's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. VoiceControl asks for nothing beyond the download.

Stair Calculator holds the better App Store score, 4.1 against 1.6. That said, the two scores are not equally well evidenced: Stair Calculator has 740 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 21% of Stair Calculator's written reviews are positive against 0% of VoiceControl's.

Stair Calculator ships an update every 3 months, VoiceControl every 13 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Stair Calculator | VoiceControl |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (740 ratings)](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366/reviews)** | [1.6 (14 ratings)](https://appshunter.io/ios/app/voicecontrol/id1618250982/reviews) |
| Number of ratings | **740** | 14 |
| Positive reviews | **21.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 13 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 239 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [Broan-NuTone, LLC.](https://appshunter.io/developer/1060691176) |

## What reviewers say

### Stair Calculator

[App page](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366)

This app calculates essential parameters for stair construction, offering flexibility in input and providing multiple step set options. It supports various units and allows results to be easily copied.

**Highlights:** Calculate stair construction parameters, Flexible input for Run or Total Run, Determine largest and smallest step sets, Support for various units, Copy results to clipboard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Premium Package | $9.99 | per year |
| Unlock all features | $5.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful information
- 🚀 Provides useful calculations

**What reviewers complain about**

- 🐛 Doesn't work as expected
- 🔒 No way to cancel subscription
- 🔒 Difficult to cancel trial
- 🤬 Obnoxious ads
- 🤬 Misleading as a learning tool

**Reported bugs**

- Subscription numbers don't add up
- Doesn't provide promised features after purchase

**Requested features**

- Option to uninstall app
- Ability to calculate run based on rise and landing space
- Provide more detailed diagrams and visuals


### VoiceControl

[App page](https://appshunter.io/ios/app/voicecontrol/id1618250982)

Control your smart bath fan and lighting with voice commands. Stream music from popular services and integrate with Alexa for enhanced functionality. Adjust fan speed, dim lights, and change color temperature hands-free.

**Highlights:** Voice-activated fan control, Light on/off and dimming, Adjustable color temperature, Music streaming integration, Alexa built-in compatibility

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

**In-app purchases:** none


## Frequently asked questions

### Is Stair Calculator free?

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

### Is VoiceControl free?

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

### Which has better reviews, Stair Calculator or VoiceControl?

Stair Calculator is rated higher. Stair Calculator averages 4.1 out of 5 from 740 ratings, while VoiceControl averages 1.6 from 14 ratings.

### Do Stair Calculator or VoiceControl have ads?

Neither Stair Calculator nor VoiceControl shows ads.

### Which is updated more often, Stair Calculator or VoiceControl?

Stair Calculator ships an update every 3 months, and VoiceControl every 13 months. Most recently, Stair Calculator was updated on October 24, 2026 and VoiceControl on October 24, 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.*