# Quad Notes vs Voice Calculator

The clearest difference is in-app purchases: Quad Notes at none against Voice Calculator's 1. Quad Notes also leads on device support (3 vs 1). Voice Calculator's advantage is update cadence (daily vs every 2 weeks). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Voice Calculator sells 1 one-off in-app purchase. Quad Notes asks for nothing beyond the download.

Quad Notes ships an update every 2 weeks, Voice Calculator daily. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Quad Notes | Voice Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 8 MB |
| Requires iOS | **15.8.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [RAINBOW TREE LLC](https://appshunter.io/developer/1619997282) |

## What reviewers say

### Quad Notes

[App page](https://appshunter.io/ios/app/quad-notes/id6741947436)

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

**In-app purchases:** none


### Voice Calculator

[App page](https://appshunter.io/ios/app/voice-calculator-voicalc/id6757627358)

Perform calculations using your voice and hear the results spoken aloud. Ideal for hands-free use, visually impaired individuals, and professionals. Supports multiple languages and offers a history feature.

**Highlights:** Calculate by voice, Hear results spoken aloud, Supports 11 languages, Calculation history, Business keypad features, Accessibility options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Lifetime) | $2.99 | one-time |


## Frequently asked questions

### Is Quad Notes free?

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

### Is Voice Calculator free?

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

### Do Quad Notes or Voice Calculator have ads?

Both Quad Notes and Voice Calculator show ads.

### Which is updated more often, Quad Notes or Voice Calculator?

Quad Notes ships an update every 2 weeks, and Voice Calculator daily. Most recently, Quad Notes was updated on October 10, 2026 and Voice Calculator 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.*