# SciSpace vs NCP

The clearest difference is in-app purchases: SciSpace at none against NCP's 3. SciSpace also leads on update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NCP sells 3 in-app purchases, starting at $3.99 per month. SciSpace asks for nothing beyond the download.

SciSpace ships an update fortnightly, NCP every 3 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SciSpace | NCP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (11 ratings)](https://appshunter.io/ios/app/scispace/id6742434138/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | — |
| Size | 78 MB | 27 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PubGenius Inc.](https://appshunter.io/developer/1798128342) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## 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


### NCP

[App page](https://appshunter.io/ios/app/ncp-ads-accelerated-data-sci/id6757463896)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $14.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is SciSpace free?

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

### Is NCP free?

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

### Do SciSpace or NCP have ads?

Neither SciSpace nor NCP shows ads.

### Which is updated more often, SciSpace or NCP?

SciSpace ships an update fortnightly, and NCP every 3 months. Most recently, SciSpace was updated on October 24, 2026 and NCP on October 16, 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.*