# Orbit Books vs SciX

The clearest difference is update cadence: Orbit Books at every 5 days against SciX's every 5 weeks. Orbit Books also leads on iOS requirement (13.0 vs 16.4). 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.

Orbit Books ships an update every 5 days, SciX every 5 weeks. The most recent releases landed on November 8, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Orbit Books | SciX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Size | 54 MB | 49 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Evergreen Publications (India) Private Ltd](https://appshunter.io/developer/1488785144) | [Akhil Tripathi](https://appshunter.io/developer/6811607342) |

## What reviewers say

### Orbit Books

[App page](https://appshunter.io/ios/app/orbit-books/id6749561935)

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

**In-app purchases:** none


### SciX

[App page](https://appshunter.io/ios/app/scix-a-stem-app/id6811607340)

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

**In-app purchases:** none


## Frequently asked questions

### Is Orbit Books free?

Orbit Books is free to download, with no in-app purchases.

### Is SciX free?

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

### Do Orbit Books or SciX have ads?

Neither Orbit Books nor SciX shows ads.

### Which is updated more often, Orbit Books or SciX?

Orbit Books ships an update every 5 days, and SciX every 5 weeks. Most recently, Orbit Books was updated on November 8, 2026 and SciX on October 29, 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.*