# FLEX Explorer vs Luna

The clearest difference is in-app purchases: FLEX Explorer at none against Luna's 2. FLEX Explorer also leads on iOS requirement (8.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Luna sells 2 in-app purchases, starting at $3.99 per month. FLEX Explorer asks for nothing beyond the download.

## The numbers

| Metric | FLEX Explorer | Luna |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/flex-explorer/id1258718045/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free | — |
| Size | 48 MB | 169 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Honeywell International, Inc.](https://appshunter.io/developer/311222963) | [Human Learning Lab](https://appshunter.io/developer/1802598231) |

## What reviewers say

### FLEX Explorer

[App page](https://appshunter.io/ios/app/flex-explorer/id1258718045)

This application allows users to connect to OPC UA Servers, browse their address spaces, and read/write data values. It also enables monitoring of data changes and attributes, simplifying the development of UA Client applications for iOS.

**Highlights:** Connect to OPC UA Servers, Browse address space, Read and write values, Monitor data changes, Monitor attributes

**In-app purchases:** none


### Luna

[App page](https://appshunter.io/ios/app/luna-learn-from-podcasts/id6746647579)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Luna Subscription Monthly | $3.99 | per month |
| Luna Subscription Yearly | $29.99 | per year |


## Frequently asked questions

### Is FLEX Explorer free?

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

### Is Luna free?

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

### Do FLEX Explorer or Luna have ads?

Neither FLEX Explorer nor Luna shows ads.

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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.*