# SciSpace vs Radar RSC

The clearest difference is in-app purchases: SciSpace at none against Radar RSC's 2. Radar RSC's advantage is update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Radar RSC sells 2 in-app purchases, starting at $7.99 per month. SciSpace asks for nothing beyond the download.

SciSpace ships an update fortnightly, Radar RSC every 4 days. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | SciSpace | Radar RSC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/scispace/id6742434138/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 78 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [PubGenius Inc.](https://appshunter.io/developer/1798128342) | [bruno pestana](https://appshunter.io/developer/6773127532) |

## What reviewers say

### SciSpace

[App page](https://appshunter.io/ios/app/scispace/id6742434138)

This AI-powered research companion helps academics, researchers, and students accelerate literature reviews. It allows users to search millions of papers using natural language, extract key insights from documents, and receive citation-backed answers to their queries.

**Highlights:** AI-powered semantic search, Instant paper insights extraction, Citation-backed answers, Access to 270+ million papers, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### Radar RSC

[App page](https://appshunter.io/ios/app/radar-rsc/id6773127530)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radar RSC Advanced | $7.99 | per month |
| Radar RSC Pro | $11.99 | per month |


## Frequently asked questions

### Is SciSpace free?

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

### Is Radar RSC free?

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

### Do SciSpace or Radar RSC have ads?

Neither SciSpace nor Radar RSC shows ads.

### Which is updated more often, SciSpace or Radar RSC?

SciSpace ships an update fortnightly, and Radar RSC every 4 days. Most recently, SciSpace was updated on October 9, 2026 and Radar RSC on September 29, 2026.

---

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