# Flat Earth Sun, Moon & Zodiac vs HemiSync

The clearest difference is price: HemiSync at Free against Flat Earth Sun, Moon & Zodiac's $5.99. HemiSync also leads on review sentiment (100% vs 74%). Flat Earth Sun, Moon & Zodiac's advantage is rating (4.7 vs 3.6) and ratings volume (2.2K vs 11). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

HemiSync is free to download; Flat Earth Sun, Moon & Zodiac costs $5.99 up front. Flat Earth Sun, Moon & Zodiac sells 2 in-app purchases, starting at $0.99 per month and HemiSync sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Flat Earth Sun, Moon & Zodiac holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Flat Earth Sun, Moon & Zodiac has 2.2K ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 74% of Flat Earth Sun, Moon & Zodiac's written reviews are positive against 100% of HemiSync's, so the app with the better star average is not the one people write more warmly about.

Flat Earth Sun, Moon & Zodiac ships an update every 4 weeks, HemiSync every 5 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Flat Earth Sun, Moon & Zodiac | HemiSync |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.7 (2.2K ratings)](https://appshunter.io/ios/app/flat-earth-sun-moon-and-zodiac/id1440996640/reviews)** | [3.6 (11 ratings)](https://appshunter.io/ios/app/hemisync/id6751762821/reviews) |
| Number of ratings | **2.2K** | 11 |
| Positive reviews | 74.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#59** | — |
| Size | 311 MB | 61 MB |
| Requires iOS | **16.0** | 18.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Blue Water Bay](https://appshunter.io/developer/1440996639) | [EngineZero](https://appshunter.io/developer/1573141529) |

## What reviewers say

### Flat Earth Sun, Moon & Zodiac

[App page](https://appshunter.io/ios/app/flat-earth-sun-moon-and-zodiac/id1440996640)

**Currently charting:** #59 Top Paid · Utilities (US App Store)

Explore celestial mechanics from an alternative perspective, tracking the sun and moon's positions on an AE map. Connect with like-minded users, access educational content, and discover flat earth-related books and products. Features include time-lapse views, a world compass, and local weather data.

**Highlights:** Sun and moon position tracking on AE map, Daily educational video content, Connect with users worldwide, Zodiac Star Wheel for astrological cycles, Flat earth-related books and products, Time-lapse of sun and moon movements, World Compass visualization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscriptions | $0.99 | per month |
| Yearly Subscriptions | $10.99 | per year |

**What reviewers like**

- 🚀 Highly informative
- 🌐 Provides a visual representation of the flat earth model
- 📚 Extensive video library with censored content
- 👍 Useful for explaining flat earth concepts
- 🙏 Helps users find the truth

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Security concerns with data leaks and privacy issues
- 💰 Subscription model with hidden costs
- 🤔 Questionable accuracy of the flat earth model
- 🤯 Promotes conspiracy theories and pseudoscience

**Reported bugs**

- Clock not displaying the correct time
- Subscription issues and inability to access paid features
- Compatibility problems with newer iOS devices
- Frequent app crashes and freezes

**Requested features**

- Ability to use the clock as a home screen or wallpaper
- Improved compass functionality
- Portrait mode support
- Constellation map integration
- Ability to track sun/moon positions more accurately


### HemiSync

[App page](https://appshunter.io/ios/app/hemisync/id6751762821)

This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.

**Highlights:** Binaural beat and isochronic tone generation, Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma), Pre-configured audio presets, Session timer functionality, Solfeggio frequency options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


## Frequently asked questions

### Is Flat Earth Sun, Moon & Zodiac free?

Flat Earth Sun, Moon & Zodiac costs $5.99, and also offers in-app purchases.

### Is HemiSync free?

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

### Which has better reviews, Flat Earth Sun, Moon & Zodiac or HemiSync?

Flat Earth Sun, Moon & Zodiac is rated higher. Flat Earth Sun, Moon & Zodiac averages 4.7 out of 5 from 2.2K ratings, while HemiSync averages 3.6 from 11 ratings.

### Do Flat Earth Sun, Moon & Zodiac or HemiSync have ads?

Neither Flat Earth Sun, Moon & Zodiac nor HemiSync shows ads.

### Which is updated more often, Flat Earth Sun, Moon & Zodiac or HemiSync?

Flat Earth Sun, Moon & Zodiac ships an update every 4 weeks, and HemiSync every 5 weeks. Most recently, Flat Earth Sun, Moon & Zodiac was updated on November 6, 2026 and HemiSync on November 5, 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.*