# Alpha+ vs Luminosys

The clearest difference is rating: Alpha+ at 5.0 against Luminosys's 4.4. Alpha+ also leads on ads (none vs shown) and update cadence (monthly vs every 19 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Alpha+ holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 7 respectively. Written reviews point the same way: 100% of Alpha+'s written reviews are positive against 75% of Luminosys's.

Alpha+ ships an update monthly, Luminosys every 19 months. The most recent releases landed on September 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Alpha+ | Luminosys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/alpha-plus/id1622067542/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389/reviews) |
| Number of ratings | 5 | **7** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 19 months |
| Monetization | **Free** | Ad-supported |
| Size | 20 MB | 3 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alpha Elevator Control, Inc](https://appshunter.io/developer/1622067544) | [Melissa Zwick](https://appshunter.io/developer/1616726350) |

## What reviewers say

### Alpha+

[App page](https://appshunter.io/ios/app/alpha-plus/id1622067542)

This app helps elevator mechanics interact with Lykos and Lobos controllers. It provides details on alarms and faults, suggests remedies, and allows for software updates on compatible controllers.

**Highlights:** View alarm and fault descriptions, Access remedy information, Read extra bytes, Update Lykos controller software, Update Lobos controller software

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

**In-app purchases:** none


### Luminosys

[App page](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389)

Accurately measure ambient light levels in Lux or Foot Candles using your phone's camera. This tool is ideal for photography, comparing light sources, or indoor gardening. It's designed for ease of use and provides precise readings.

**Highlights:** Measures light in Lux, Measures light in Foot Candles (FC), Uses phone camera for accuracy, Easy to use interface, Suitable for photography, Useful for indoor gardening

**In-app purchases:** none


## Frequently asked questions

### Is Alpha+ free?

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

### Is Luminosys free?

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

### Which has better reviews, Alpha+ or Luminosys?

Alpha+ is rated higher. Alpha+ averages 5.0 out of 5 from 5 ratings, while Luminosys averages 4.4 from 7 ratings.

### Do Alpha+ or Luminosys have ads?

Luminosys shows ads; Alpha+ does not.

### Which is updated more often, Alpha+ or Luminosys?

Alpha+ ships an update monthly, and Luminosys every 19 months. Most recently, Alpha+ was updated on September 17, 2026 and Luminosys on October 7, 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.*