# Smart Telescope Planner vs Apphemeride Precise Astronomy

The clearest difference is in-app purchases: Smart Telescope Planner at none against Apphemeride Precise Astronomy's 2. Smart Telescope Planner also leads on update cadence (every 11 days vs every 4 weeks) and iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Apphemeride Precise Astronomy sells 2 one-off in-app purchases. Smart Telescope Planner asks for nothing beyond the download.

Smart Telescope Planner ships an update every 11 days, Apphemeride Precise Astronomy every 4 weeks. The most recent releases landed on October 17, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Smart Telescope Planner | Apphemeride Precise Astronomy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 4 weeks |
| Monetization | — | Free |
| Size | 72 MB | 442 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Derry](https://appshunter.io/developer/1895668428) | [Csaba Lengyel](https://appshunter.io/developer/1888397396) |

## What reviewers say

### Smart Telescope Planner

[App page](https://appshunter.io/ios/app/smart-telescope-planner/id6768153445)

**Features:** Family Sharing

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Smart Telescope Planner free?

Smart Telescope Planner is free to download, with no in-app purchases.

### Is Apphemeride Precise Astronomy free?

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

### Do Smart Telescope Planner or Apphemeride Precise Astronomy have ads?

Neither Smart Telescope Planner nor Apphemeride Precise Astronomy shows ads.

### Which is updated more often, Smart Telescope Planner or Apphemeride Precise Astronomy?

Smart Telescope Planner ships an update every 11 days, and Apphemeride Precise Astronomy every 4 weeks. Most recently, Smart Telescope Planner was updated on October 17, 2026 and Apphemeride Precise Astronomy on September 30, 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.*