# Sci vs EasyPDF Sign

The clearest difference is price: EasyPDF Sign at Free against Sci's $3.99. EasyPDF Sign also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (15.0 vs 17.0). Sci's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

EasyPDF Sign is free to download; Sci costs $3.99 up front. EasyPDF Sign sells 1 one-off in-app purchase. Sci asks for nothing beyond the download.

Sci ships an update every 6 months, EasyPDF Sign every 2 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sci | EasyPDF Sign |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sci-fi-calculator-widget/id6470088682/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 21 MB | 50 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [NSTE, LLC](https://appshunter.io/developer/1671708345) | [SOFTICA](https://appshunter.io/developer/1895827122) |

## What reviewers say

### Sci

[App page](https://appshunter.io/ios/app/sci-fi-calculator-widget/id6470088682)

Customize your home screen with a calculator widget featuring 16 unique sci-fi themes. Enjoy futuristic aesthetics and sounds, transforming your device into a futuristic interface with a simple tap.

**Highlights:** 16 sci-fi themes, Home screen widget, Tap to switch themes, Futuristic sounds, iPhone and iPad support

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

**In-app purchases:** none


### EasyPDF Sign

[App page](https://appshunter.io/ios/app/easypdf-sign/id6773337001)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is Sci free?

Sci costs $3.99, with no in-app purchases.

### Is EasyPDF Sign free?

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

### Do Sci or EasyPDF Sign have ads?

Neither Sci nor EasyPDF Sign shows ads.

### Which is updated more often, Sci or EasyPDF Sign?

Sci ships an update every 6 months, and EasyPDF Sign every 2 months. Most recently, Sci was updated on November 3, 2026 and EasyPDF Sign on November 5, 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.*