# Solunar Calculator vs Hec

The clearest difference is in-app purchases: Hec at none against Solunar Calculator's 3. Hec also leads on ads (none vs shown). Solunar Calculator's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Solunar Calculator sells 3 in-app purchases, starting at $0.99 per month. Hec asks for nothing beyond the download.

Solunar Calculator ships an update every 6 weeks, Hec every 5 weeks. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Solunar Calculator | Hec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (68 ratings)](https://appshunter.io/ios/app/solunar-calculator/id1468244490/reviews)** | — |
| Number of ratings | **68** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 14 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [雪平 王](https://appshunter.io/developer/1045915049) | [realglobe Inc.](https://appshunter.io/developer/302553700) |

## What reviewers say

### Solunar Calculator

[App page](https://appshunter.io/ios/app/solunar-calculator/id1468244490)

Track celestial bodies with detailed astronomical data, including sunrise, sunset, moon phases, and their positions. Visualize their paths using AR and access advanced features like eclipse predictions and night sky photography settings with a membership.

**Highlights:** Sunrise, sunset, and magic hour tracking, Moonrise, moonset, and moon phase data, AR visualization of celestial paths, Map display of sun and moon positions, Astronomy weather forecasts, Night sky photography settings

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Annual membership | $7.99 | per year |
| Pro Membership | $19.99 | one-time |


### Hec

[App page](https://appshunter.io/ios/app/hec-eye-camera/id1469863555)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solunar Calculator free?

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

### Is Hec free?

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

### Do Solunar Calculator or Hec have ads?

Solunar Calculator shows ads; Hec does not.

### Which is updated more often, Solunar Calculator or Hec?

Solunar Calculator ships an update every 6 weeks, and Hec every 5 weeks. Most recently, Solunar Calculator was updated on October 24, 2026 and Hec on October 26, 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.*