# InterLock vs Voice Speaker

The clearest difference is in-app purchases: InterLock at none against Voice Speaker's 1. InterLock also leads on iOS requirement (10.0 vs 12.0). Voice Speaker's advantage is update cadence (fortnightly vs every 25 months). On price, ads and device support there is nothing between them.

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

InterLock ships an update every 25 months, Voice Speaker fortnightly. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | InterLock | Voice Speaker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 25 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 1 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Justec(shenzhen)Co.,Ltd](https://appshunter.io/developer/1207703452) | [盛蜀 李](https://appshunter.io/developer/1115579497) |

## What reviewers say

### InterLock

[App page](https://appshunter.io/ios/app/interlock/id1474177115)

**Features:** macOS Compatibility

**In-app purchases:** none


### Voice Speaker

[App page](https://appshunter.io/ios/app/voice-speaker/id1606077022)

This utility app allows users to have text read aloud, either repeatedly or in custom sequences. It's designed to assist individuals who have difficulty speaking by providing pre-recorded common phrases and supporting multiple foreign languages.

**Highlights:** Repeated text reading, Custom phrase editing, Grouped voice playback, Multi-language support, Assists non-verbal users

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $6.99 | one-time |


## Frequently asked questions

### Is InterLock free?

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

### Is Voice Speaker free?

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

### Do InterLock or Voice Speaker have ads?

Neither InterLock nor Voice Speaker shows ads.

### Which is updated more often, InterLock or Voice Speaker?

InterLock ships an update every 25 months, and Voice Speaker fortnightly. Most recently, InterLock was updated on September 29, 2026 and Voice Speaker 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.*