# Lunea Observatory vs TangiFlow

The clearest difference is in-app purchases: Lunea Observatory at none against TangiFlow's 1. TangiFlow's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. TangiFlow sells 1 one-off in-app purchase. Lunea Observatory asks for nothing beyond the download.

## The numbers

| Metric | Lunea Observatory | TangiFlow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Monetization | — | Free with in-app purchases |
| Size | 79 MB | 3 MB |
| Requires iOS | 18.5 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Marlin Mack](https://appshunter.io/developer/1822862783) | [Ningbo Tanji Technology Co., Ltd.](https://appshunter.io/developer/1780379812) |

## What reviewers say

### Lunea Observatory

[App page](https://appshunter.io/ios/app/lunea-observatory/id6747781460)

**Features:** macOS Compatibility

**In-app purchases:** none


### TangiFlow

[App page](https://appshunter.io/ios/app/tangiflow/id6756780155)

This tool helps you achieve a state of flow by generating custom binaural beats and isochronic tones. Its distraction-free interface allows for seamless background playback and precise sleep timing.

**Highlights:** Custom binaural beats and isochronic tones, Tailored to unique neural rhythms, Sleek, distraction-free interface, Seamless background playback, Precision sleep timer, Professional parameter adjustment

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Theme Colour | $0.99 | one-time |


## Frequently asked questions

### Is Lunea Observatory free?

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

### Is TangiFlow free?

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

### Do Lunea Observatory or TangiFlow have ads?

Lunea Observatory shows ads; TangiFlow does not.

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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.*