# Apphemeride Precise Astronomy vs Heliora

The clearest difference is monetization model: Apphemeride Precise Astronomy at free against Heliora's free with in-app purchases. Heliora's advantage is iOS requirement (17.0 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Apphemeride Precise Astronomy sells 2 one-off in-app purchases and Heliora sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Apphemeride Precise Astronomy | Heliora |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 442 MB | 11 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Csaba Lengyel](https://appshunter.io/developer/1888397396) | [永晓 邵](https://appshunter.io/developer/1527978041) |

## What reviewers say

### Apphemeride Precise Astronomy

[App page](https://appshunter.io/ios/app/apphemeride-precise-astronomy/id6776641899)

This app provides precise astronomical data for sky analysis, including eclipses, Moon motion, and planetary positions. It offers location-based calculations and visual tools to understand celestial events and their visibility.

**Highlights:** Precise sky analysis, Eclipse and Moon motion tracking, Location-based celestial calculations, Horizon Tracker for celestial body movement, Detailed planetary and solar system data, Solar and lunar eclipse simulations, Configurable data display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day Trial | Free | one-time |
| Apphemeride Full Unlock | $49.99 | one-time |


### Heliora

[App page](https://appshunter.io/ios/app/heliora-sun-path-tracker/id6791093697)

Visualize the sun's path and position using augmented reality and a 3D compass. Plan photography, trips, or sky observations by predicting solar events like sunrise, sunset, and golden hour for any location.

**Highlights:** Augmented reality sun path visualization, 3D compass for azimuth and altitude, Map-based location planning, Sunrise, sunset, golden hour prediction, Dawn and dusk stages, Timeline exploration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| Buy Me a Slice of Cake | $2.99 | one-time |
| Buy Me a Meal | $3.99 | one-time |
| Big Support | $9.99 | one-time |


## Frequently asked questions

### Is Apphemeride Precise Astronomy free?

Apphemeride Precise Astronomy is free to download, with in-app purchases available.

### Is Heliora free?

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

### Do Apphemeride Precise Astronomy or Heliora have ads?

Neither Apphemeride Precise Astronomy nor Heliora 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.*