# Scira vs Nautilo

Scira and Nautilo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scira ships an update every 3 weeks, Nautilo every 2 weeks. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Scira | Nautilo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/scira/id6773326789/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 50 MB | 60 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [SCIRA AI (OPC) PRIVATE LIMITED](https://appshunter.io/developer/1891270662) | [Kentauros AI Inc.](https://appshunter.io/developer/6800470421) |

## What reviewers say

### Scira

[App page](https://appshunter.io/ios/app/scira/id6773326789)

This AI-powered assistant helps you research by answering questions, exploring various sources, and organizing your work. Attach files, use voice input, and manage related research within projects. Syncs across devices for seamless access.

**Highlights:** AI chat and web research with cited sources, Customizable source controls, File and document attachment support, Voice input for prompts, Project-based organization, Cross-device syncing

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

**In-app purchases:** none


### Nautilo

[App page](https://appshunter.io/ios/app/nautilo/id6800470419)

**In-app purchases:** none


## Frequently asked questions

### Is Scira free?

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

### Is Nautilo free?

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

### Do Scira or Nautilo have ads?

Neither Scira nor Nautilo shows ads.

### Which is updated more often, Scira or Nautilo?

Scira ships an update every 3 weeks, and Nautilo every 2 weeks. Most recently, Scira was updated on October 23, 2026 and Nautilo 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.*