# Voice Marker Clock vs BootBrain

The clearest difference is in-app purchases: BootBrain at none against Voice Marker Clock's 4. BootBrain also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Voice Marker Clock sells 4 one-off in-app purchases. BootBrain asks for nothing beyond the download.

Voice Marker Clock ships an update fortnightly, BootBrain every 8 days. The most recent releases landed on June 1, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Voice Marker Clock | BootBrain |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 50 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuichiro Niwa](https://appshunter.io/developer/1694263025) | [klien](https://appshunter.io/developer/1558821214) |

## What reviewers say

### Voice Marker Clock

[App page](https://appshunter.io/ios/app/voice-marker-clock/id6502950713)

This analog clock app reads the time aloud at customizable intervals and allows users to set colored time markers with countdowns and notifications. It can also function as a simple, silent clock when needed.

**Highlights:** Voice time announcements, Customizable announcement intervals, Colored time markers, Countdown to marked time, Sound notifications for marked time, Simple clock mode

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Treat me to a donut | $1.99 | one-time |
| Marker - Feature Addition | $3.99 | one-time |
| Treat me to a hamburger | $4.99 | one-time |
| Treat me to a sushi. | $8.99 | one-time |


### BootBrain

[App page](https://appshunter.io/ios/app/bootbrain/id6751806379)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Voice Marker Clock free?

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

### Is BootBrain free?

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

### Do Voice Marker Clock or BootBrain have ads?

Neither Voice Marker Clock nor BootBrain shows ads.

### Which is updated more often, Voice Marker Clock or BootBrain?

Voice Marker Clock ships an update fortnightly, and BootBrain every 8 days. Most recently, Voice Marker Clock was updated on June 1, 2026 and BootBrain on September 10, 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.*