# Keyinvoice App vs Keymaster

The clearest difference is device support: Keyinvoice App at 3 against Keymaster's —. On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

Keyinvoice App ships an update every 6 weeks, Keymaster every 2 months. The most recent releases landed on October 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Keyinvoice App | Keymaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 14 MB | 7 MB |
| Requires iOS | 15 | 15.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 4+ |
| Developer | [T & T-TELEMATICA E TECNOLOGIAS DE INFORMACAO, UNIPESSOAL, LDA](https://appshunter.io/developer/1523497190) | [ACORDO CERTO 2, UNIPESSOAL, LDA](https://appshunter.io/developer/1609652890) |

## What reviewers say

### Keyinvoice App

[App page](https://appshunter.io/ios/app/keyinvoice-app/id981507076)

**Features:** macOS Compatibility

**In-app purchases:** none


### Keymaster

[App page](https://appshunter.io/ios/app/keymaster/id6449468600)

**In-app purchases:** none


## Frequently asked questions

### Is Keyinvoice App free?

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

### Is Keymaster free?

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

### Which is updated more often, Keyinvoice App or Keymaster?

Keyinvoice App ships an update every 6 weeks, and Keymaster every 2 months. Most recently, Keyinvoice App was updated on October 12, 2026 and Keymaster on September 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.*