# LunaSolCal vs Prozentrechner.net

The clearest difference is price: Prozentrechner.net at Free against LunaSolCal's $4.99. Prozentrechner.net also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (13.0 vs 17.0). LunaSolCal's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Prozentrechner.net is free to download; LunaSolCal costs $4.99 up front. Prozentrechner.net sells 2 in-app purchases, starting at $0.99 per month. LunaSolCal asks for nothing beyond the download.

LunaSolCal ships an update every 2 months, Prozentrechner.net every 2 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | LunaSolCal | Prozentrechner.net |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.9 (1.2K ratings)](https://appshunter.io/ios/app/lunasolcal/id390175338/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 95.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 64 MB | 41 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Volker Voecking Software Engineering](https://appshunter.io/developer/390175341) | [FUTR UG (haftungsbeschrankt)](https://appshunter.io/developer/6781630912) |

## What reviewers say

### LunaSolCal

[App page](https://appshunter.io/ios/app/lunasolcal/id390175338)

This app calculates precise times for sun and moon events, including sunrise, sunset, moonrise, and moonset, for any location and date. It also provides detailed astronomical data and tracks celestial movements. View daily information in the notification center.

**Highlights:** Sunrise and sunset times, Moonrise and moonset times, Day length calculation, Moon phase tracking, Twilight times (civil, nautical, astronomical), Solar and lunar eclipse dates, Location-based calculations via GPS or city database

**Features:** iPhone Duo support

**In-app purchases:** none

**What reviewers like**

- 👍 Great app
- 🚀 Accurate and reliable information
- 💡 Useful for photography and planning
- 👍 Easy to use and navigate
- 👍 Comprehensive data and features

**What reviewers complain about**

- 🐛 Notifications/alarms not working consistently
- 🐛 Occasional crashes or bugs
- 🔧 Place/location selection could be improved

**Reported bugs**

- Notifications not working properly
- Crashes when using map layer select

**Requested features**

- Add lockscreen widget
- Implement automatic light/dark mode switching
- Integrate with calendar for event planning


### Prozentrechner.net

[App page](https://appshunter.io/ios/app/prozentrechnernet/id6781630910)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monatsabo | $0.99 | per month |
| Pro Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is LunaSolCal free?

LunaSolCal costs $4.99, with no in-app purchases.

### Is Prozentrechner.net free?

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

### Do LunaSolCal or Prozentrechner.net have ads?

Neither LunaSolCal nor Prozentrechner.net shows ads.

### Which is updated more often, LunaSolCal or Prozentrechner.net?

LunaSolCal ships an update every 2 months, and Prozentrechner.net every 2 weeks. Most recently, LunaSolCal was updated on November 1, 2026 and Prozentrechner.net on October 24, 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.*