# Singularity by Vaonis vs Chapter Locator USA

The clearest difference is update cadence: Chapter Locator USA at every 3 days against Singularity by Vaonis's every 5 weeks. Singularity by Vaonis's advantage is iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Singularity by Vaonis ships an update every 5 weeks, Chapter Locator USA every 3 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Singularity by Vaonis | Chapter Locator USA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (75 ratings)](https://appshunter.io/ios/app/singularity-by-vaonis/id1515280835/reviews)** | — |
| Number of ratings | **75** | — |
| Positive reviews | 64.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 401 MB | 5 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Vaonis](https://appshunter.io/developer/1369139518) | [benjamin holsinger](https://appshunter.io/developer/1853404979) |

## What reviewers say

### Singularity by Vaonis

[App page](https://appshunter.io/ios/app/singularity-by-vaonis/id1515280835)

Control your smart telescope to explore the cosmos. Discover celestial objects with personalized recommendations, capture stunning images of galaxies and nebulae, and share your astronomical journey.

**Highlights:** Automatic setup and alignment, Real-time image processing, Object catalog and coordinate pointing, Mosaic mode for wider views, Solar observation mode, Expert mode for advanced control, Night planning and automated exploration

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and set up
- 🌟 Stunning photo quality
- ✨ Magical viewing experience
- 🚀 Smooth operation
- ✅ Well-designed interface

**What reviewers complain about**

- 👎 No landscape mode for iPad/iPhone
- 😠 Forced app updates
- 🌐 Too American-centric
- 📉 Blurred catalog images
- ⚠️ Quality control issues

**Reported bugs**

- Crashing constantly
- Solar images turned green
- Moon pictures are broken
- App crashes telescope
- Keeps losing connection to iPad

**Requested features**

- Add landscape mode for iPad and iPhone
- Add a sky map to the app
- Allow planning of multi-night observations
- Enable manual control of the observation arm
- Add iOS widgets


### Chapter Locator USA

[App page](https://appshunter.io/ios/app/chapter-locator-usa/id6755359527)

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

**In-app purchases:** none


## Frequently asked questions

### Is Singularity by Vaonis free?

Singularity by Vaonis is free to download, with no in-app purchases.

### Is Chapter Locator USA free?

Chapter Locator USA is free to download, with no in-app purchases.

### Do Singularity by Vaonis or Chapter Locator USA have ads?

Neither Singularity by Vaonis nor Chapter Locator USA shows ads.

### Which is updated more often, Singularity by Vaonis or Chapter Locator USA?

Singularity by Vaonis ships an update every 5 weeks, and Chapter Locator USA every 3 days. Most recently, Singularity by Vaonis was updated on October 24, 2026 and Chapter Locator USA on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*