# Singularity by Vaonis vs Sideris

The clearest difference is in-app purchases: Singularity by Vaonis at none against Sideris's 1. Sideris's advantage is update cadence (every 10 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sideris sells 1 one-off in-app purchase. Singularity by Vaonis asks for nothing beyond the download.

Singularity by Vaonis ships an update every 5 weeks, Sideris every 10 days. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Singularity by Vaonis | Sideris |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (74 ratings)](https://appshunter.io/ios/app/singularity-by-vaonis/id1515280835/reviews)** | — |
| Number of ratings | **74** | — |
| Positive reviews | 64.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 401 MB | 127 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vaonis](https://appshunter.io/developer/1369139518) | [Loris BERT](https://appshunter.io/developer/6809145520) |

## 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


### Sideris

[App page](https://appshunter.io/ios/app/sideris-star-map-and-solver/id6809145518)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Plate Solving | $9.99 | one-time |


## Frequently asked questions

### Is Singularity by Vaonis free?

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

### Is Sideris free?

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

### Do Singularity by Vaonis or Sideris have ads?

Neither Singularity by Vaonis nor Sideris shows ads.

### Which is updated more often, Singularity by Vaonis or Sideris?

Singularity by Vaonis ships an update every 5 weeks, and Sideris every 10 days. Most recently, Singularity by Vaonis was updated on October 14, 2026 and Sideris on October 9, 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.*