# CoreSpec 3D vs Lucid

The clearest difference is in-app purchases: CoreSpec 3D at none against Lucid's 4. Lucid's advantage is ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Lucid sells 4 in-app purchases, starting at $2.99 per month. CoreSpec 3D asks for nothing beyond the download.

CoreSpec 3D ships an update every 2 months, Lucid fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CoreSpec 3D | Lucid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/lucid-creative-focus/id6748564027/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 897 MB | 130 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Boom Interactive Inc](https://appshunter.io/developer/1586996756) | [Raman Mama](https://appshunter.io/developer/1806390216) |

## What reviewers say

### CoreSpec 3D

[App page](https://appshunter.io/ios/app/corespec-3d/id6448073665)

**In-app purchases:** none


### Lucid

[App page](https://appshunter.io/ios/app/lucid-creative-focus/id6748564027)

This tool helps you get work done by blocking distractions and using a focus timer. Track your progress and set goals to improve productivity and reduce interruptions. Optimized for iPad, it offers a privacy-first experience with no ads or tracking.

**Highlights:** Focus timer for set work sessions, Distraction blocking to minimize interruptions, Activity tracking for productive time, Progress visualization with a grid, Background audio for enhanced focus, Goal setting for daily, weekly, or monthly targets

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $2.99 | per month |
| Premium Annual Subscription | $24.99 | per year |
| Premium Subscription | $39.99 | one-time |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is CoreSpec 3D free?

CoreSpec 3D is free to download, with no in-app purchases.

### Is Lucid free?

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

### Do CoreSpec 3D or Lucid have ads?

CoreSpec 3D shows ads; Lucid does not.

### Which is updated more often, CoreSpec 3D or Lucid?

CoreSpec 3D ships an update every 2 months, and Lucid fortnightly. Most recently, CoreSpec 3D was updated on October 25, 2026 and Lucid on October 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.*