# SciAstra vs PRIME 2.O

The clearest difference is in-app purchases: SciAstra at none against PRIME 2.O's 1. SciAstra also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. PRIME 2.O sells 1 one-off in-app purchase. SciAstra asks for nothing beyond the download.

SciAstra ships an update every 9 months, PRIME 2.O every 11 months. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SciAstra | PRIME 2.O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/sciastra/id6469692732/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 11 months |
| Monetization | Free | — |
| Size | 327 MB | 84 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Vivek Dwivedi](https://appshunter.io/developer/1712462392) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### SciAstra

[App page](https://appshunter.io/ios/app/sciastra/id6469692732)

This platform guides students aspiring to careers in science and research. It fosters a deep appreciation for research, cultivates a scientific mindset, and nurtures critical thinking skills through learning from top scientists worldwide.

**Highlights:** Guidance for top science institutions, Learn from global scientists, Develop scientific mindset, Nurture critical thinking, Mentorship from research scholars

**Features:** Vision Pro support

**In-app purchases:** none


### PRIME 2.O

[App page](https://appshunter.io/ios/app/prime-2o/id6740146608)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postal Mastery Course | $9.99 | one-time |


## Frequently asked questions

### Is SciAstra free?

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

### Is PRIME 2.O free?

PRIME 2.O is free to download, with in-app purchases available.

### Do SciAstra or PRIME 2.O have ads?

Neither SciAstra nor PRIME 2.O shows ads.

### Which is updated more often, SciAstra or PRIME 2.O?

SciAstra ships an update every 9 months, and PRIME 2.O every 11 months. Most recently, SciAstra was updated on October 5, 2026 and PRIME 2.O on October 18, 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.*