# Robo Voice vs Silent Siege

The clearest difference is in-app purchases: Silent Siege at none against Robo Voice's 1. Silent Siege also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Robo Voice sells 1 one-off in-app purchase. Silent Siege asks for nothing beyond the download.

Robo Voice ships an update every 6 months, Silent Siege every 3 weeks. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Robo Voice | Silent Siege |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (8 ratings)](https://appshunter.io/ios/app/robo-voice/id1454533757/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 190 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Visunia GmbH](https://appshunter.io/developer/1276519129) | [Kanishk Karan](https://appshunter.io/developer/1806638484) |

## What reviewers say

### Robo Voice

[App page](https://appshunter.io/ios/app/robo-voice/id1454533757)

Record your voice or type a message to hear it transformed with various fun voice effects and language intonations. Create humorous conversations between different robot voices and share them with friends. This application offers a simple way to alter your voice for entertainment.

**Highlights:** Voice recording and text-to-speech, Multiple voice themes (robot, alien, etc.), Over 15 languages with native intonation, Save and share voice recordings, Simple editing tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


### Silent Siege

[App page](https://appshunter.io/ios/app/silent-siege/id6742731033)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Robo Voice free?

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

### Is Silent Siege free?

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

### Do Robo Voice or Silent Siege have ads?

Robo Voice shows ads; Silent Siege does not.

### Which is updated more often, Robo Voice or Silent Siege?

Robo Voice ships an update every 6 months, and Silent Siege every 3 weeks. Most recently, Robo Voice was updated on November 2, 2026 and Silent Siege 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.*