# CoolFireSB vs Lucyd

The clearest difference is review sentiment: Lucyd at 56% against CoolFireSB's 9%. Lucyd also leads on rating (4.0 vs 2.7) and update cadence (every 3 weeks vs every 4 months). CoolFireSB's advantage is in-app purchases (none vs 2) and iOS requirement (15.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Lucyd sells 2 in-app purchases, starting at $7.99 per month. CoolFireSB asks for nothing beyond the download.

Lucyd holds the better App Store score, 4.0 against 2.7. That said, the two scores are not equally well evidenced: Lucyd has 138 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 9% of CoolFireSB's written reviews are positive against 56% of Lucyd's.

CoolFireSB ships an update every 4 months, Lucyd every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | CoolFireSB | Lucyd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (10 ratings)](https://appshunter.io/ios/app/coolfiresb/id1606792875/reviews) | **[4.0 (138 ratings)](https://appshunter.io/ios/app/lucyd-personal-ai/id6450841297/reviews)** |
| Number of ratings | 10 | **138** |
| Positive reviews | 9.1% of reviews | **55.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 55 MB | 122 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [New York Standard Watch Company, LLC](https://appshunter.io/developer/828885617) | [Innovative Eyewear, Inc](https://appshunter.io/developer/1561776210) |

## What reviewers say

### CoolFireSB

[App page](https://appshunter.io/ios/app/coolfiresb/id1606792875)

Control your CoolFire Bluetooth sweatband with this app. Set and manage vibration alarms, adjust strength, and sync settings directly to your device. Monitor vibrator activity and customize your experience.

**Highlights:** Connects with CoolFire sweatband, Fetches vibrator time, Set alarm times, Edit and toggle alarms, Adjust vibration strength, Sync settings to vibrator

**In-app purchases:** none


### Lucyd

[App page](https://appshunter.io/ios/app/lucyd-personal-ai/id6450841297)

This AI-powered voice assistant and social audio platform allows for hands-free communication and private audio channels. Engage in real-time conversations with AI or other users, seamlessly integrating with existing smart devices.

**Highlights:** AI Voice Assistant, Hands-free operation, Seamless integration with Siri and smart devices, Private audio channels, Real-time voice conversations, Social audio hub

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lucyd Monthly Pro Plan | $7.99 | per month |
| Lucyd Annual Pro Plan | $69.99 | per year |


## Frequently asked questions

### Is CoolFireSB free?

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

### Is Lucyd free?

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

### Which has better reviews, CoolFireSB or Lucyd?

Lucyd is rated higher. CoolFireSB averages 2.7 out of 5 from 10 ratings, while Lucyd averages 4.0 from 138 ratings.

### Do CoolFireSB or Lucyd have ads?

Neither CoolFireSB nor Lucyd shows ads.

### Which is updated more often, CoolFireSB or Lucyd?

CoolFireSB ships an update every 4 months, and Lucyd every 3 weeks. Most recently, CoolFireSB was updated on November 3, 2026 and Lucyd on November 3, 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.*