# Celestron StarSense Explorer vs Trek Central

The clearest difference is rating: Trek Central at 4.7 against Celestron StarSense Explorer's 3.3. Trek Central also leads on ratings volume (3.1K vs 167). Celestron StarSense Explorer's advantage is review sentiment (35% vs 27%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Trek Central holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Trek Central has 3.1K ratings behind it against 167, so its average is the more settled of the two. Written reviews complicate that: 35% of Celestron StarSense Explorer's written reviews are positive against 27% of Trek Central's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Celestron StarSense Explorer | Trek Central |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (167 ratings)](https://appshunter.io/ios/app/celestron-starsense-explorer/id1368600689/reviews) | **[4.7 (3.1K ratings)](https://appshunter.io/ios/app/trek-central/id1609966547/reviews)** |
| Number of ratings | 167 | **3.1K** |
| Positive reviews | **35.2% of reviews** | 26.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 741 MB | 207 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Celestron, LLC](https://appshunter.io/developer/445142854) | [Trek Bicycle](https://appshunter.io/developer/780864901) |

## What reviewers say

### Celestron StarSense Explorer

[App page](https://appshunter.io/ios/app/celestron-starsense-explorer/id1368600689)

This app guides you through the night sky using your smartphone and a compatible telescope. It identifies celestial objects and directs your telescope for optimal viewing, making astronomy accessible for beginners and enthusiasts alike.

**Highlights:** Smartphone-guided stargazing, Real-time telescope positioning, Sky recognition technology, Celestial object database, Tonight's Best observing list, Detailed object information and audio

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

**In-app purchases:** none

**What reviewers like**

- 🎯 Accurate plate-solving technology for locating celestial objects
- 📚 Comprehensive database with detailed information about objects
- 🎧 Informative audio commentary during observations
- 🔭 Seamless integration with Celestron StarSense telescopes
- 👨‍🚀 Excellent for beginners to learn astronomy

**What reviewers complain about**

- 🧭 Persistent compass/directional calibration issues
- 📍 Frequent alignment failures and position detection problems
- 🔄 Requires constant realignment after minor telescope movements
- ❌ Inconsistent accuracy across different iPhone models
- ⏱️ Slow plate-solving on nights with full moon or light pollution

**Reported bugs**

- Directional orientation reversed or offset by 90+ degrees
- App fails to locate telescope position on clear nights
- Compass defaults to west direction on startup
- Plate-solving fails to recognize sky position
- App crashes when switching between apps or receiving notifications

**Requested features**

- Multi-language support (Korean, Chinese, Japanese, Portuguese, Arabic, French, Italian, German)
- Observation logging and favorites/bookmarks system
- Support for additional celestial objects (dwarf planets, comets)
- Pan and zoom functionality without moving telescope
- Standalone app functionality without telescope requirement


### Trek Central

[App page](https://appshunter.io/ios/app/trek-central/id1609966547)

Customize your eBike's motor assist, track ride metrics, and get real-time range calculations. The app also provides suspension setup recommendations and service reminders for compatible Trek eBikes.

**Highlights:** Motor assist customization, Activity tracking, Real-time range calculation, Navigation features, Suspension setup recommendations, Service reminders

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app when it works
- 👍 Good for adjusting bike settings
- 🔋 Decent battery life

**What reviewers complain about**

- 🐛 Constant connection issues
- 🐛 Crashes and bugs
- 🐛 Inaccurate data tracking
- 🔒 Poor password handling
- 👎 Limited functionality

**Reported bugs**

- Inability to connect to bike
- Elevation tracking not working
- Ride data not syncing correctly
- Frequent app crashes

**Requested features**

- Dark mode option
- Customizable dashboard
- Strava integration
- Apple Watch support
- Improved mapping and navigation


## Frequently asked questions

### Is Celestron StarSense Explorer free?

Celestron StarSense Explorer is free to download, with no in-app purchases.

### Is Trek Central free?

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

### Which has better reviews, Celestron StarSense Explorer or Trek Central?

Trek Central is rated higher. Celestron StarSense Explorer averages 3.3 out of 5 from 167 ratings, while Trek Central averages 4.7 from 3.1K ratings.

### Do Celestron StarSense Explorer or Trek Central have ads?

Neither Celestron StarSense Explorer nor Trek Central shows ads.

### Which is updated more often, Celestron StarSense Explorer or Trek Central?

Celestron StarSense Explorer ships an update every 2 months, and Trek Central every 2 months. Most recently, Celestron StarSense Explorer was updated on November 6, 2026 and Trek Central on November 7, 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.*