# ByTime vs Luma

The clearest difference is rating: ByTime at 4.5 against Luma's 3.8. ByTime also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Luma sells 1 one-off in-app purchase. ByTime asks for nothing beyond the download.

ByTime holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

ByTime ships an update weekly, Luma every 3 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | ByTime | Luma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/bytime-time-hub/id6747457512/reviews)** | [3.8 (4 ratings)](https://appshunter.io/ios/app/luma-brightness-widget/id6760693098/reviews) |
| Number of ratings | 2 | **4** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 10 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Baalavignesh A](https://appshunter.io/developer/1821545148) | [tomoki swanson](https://appshunter.io/developer/1579832044) |

## What reviewers say

### ByTime

[App page](https://appshunter.io/ios/app/bytime-time-hub/id6747457512)

Earn screen time by focusing on tasks. Spend your earned minutes to access blocked apps and websites on your own terms. This app offers a positive reinforcement approach to digital well-being, allowing you to regain control of your device usage.

**Highlights:** Earn screen time through focus sessions, Spend earned time to access blocked apps, Customizable focus sessions, Positive reinforcement for digital well-being, Privacy-focused, uses Apple's Screen Time APIs, Calm and intentional interface design

**In-app purchases:** none


### Luma

[App page](https://appshunter.io/ios/app/luma-brightness-widget/id6760693098)

Save and instantly switch between your preferred screen brightness levels. Access these presets directly from a Home Screen widget for quick adjustments.

**Highlights:** Save custom brightness presets, Instant switching between presets, Home Screen widget access, Quick brightness adjustments

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を非表示 | $0.99 | one-time |


## Frequently asked questions

### Is ByTime free?

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

### Is Luma free?

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

### Which has better reviews, ByTime or Luma?

ByTime is rated higher. ByTime averages 4.5 out of 5 from 2 ratings, while Luma averages 3.8 from 4 ratings.

### Do ByTime or Luma have ads?

Luma shows ads; ByTime does not.

### Which is updated more often, ByTime or Luma?

ByTime ships an update weekly, and Luma every 3 days. Most recently, ByTime was updated on October 25, 2026 and Luma 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.*