# Photon EDU vs Sideris

The clearest difference is in-app purchases: Photon EDU at none against Sideris's 1. Sideris's advantage is update cadence (every 2 weeks vs every 2 months). 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. Photon EDU asks for nothing beyond the download.

Photon EDU ships an update every 2 months, Sideris every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Photon EDU | Sideris |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/photon-edu/id1282358431/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 151 MB | 137 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Photon Entertainment sp. z o.o.](https://appshunter.io/developer/1281702819) | [Loris BERT](https://appshunter.io/developer/6809145520) |

## What reviewers say

### Photon EDU

[App page](https://appshunter.io/ios/app/photon-edu/id1282358431)

This educational app teaches children programming fundamentals through interactive lessons with a Photon robot. It's designed for teachers and schools, requiring a Photon robot and a Bluetooth 4.0 compatible device to operate.

**Highlights:** Learn programming basics, Interactive robot lessons, Designed for teachers and schools, Requires Photon robot and Bluetooth 4.0, Educational content

**Features:** macOS Compatibility

**In-app purchases:** none


### Sideris

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Photon EDU free?

Photon EDU is free to download, with no in-app purchases.

### Is Sideris free?

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

### Do Photon EDU or Sideris have ads?

Neither Photon EDU nor Sideris shows ads.

### Which is updated more often, Photon EDU or Sideris?

Photon EDU ships an update every 2 months, and Sideris every 2 weeks. Most recently, Photon EDU was updated on October 24, 2026 and Sideris 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.*