# Sci vs E

The clearest difference is ads: E at none against Sci's shown. E also leads on iOS requirement (5.1.1 vs 18). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Sci ships an update every 4 months, E every 3 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Sci | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (14 ratings)](https://appshunter.io/ios/app/sci-fi-sounds-and-noises/id477955120/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 53.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 32 MB |
| Requires iOS | 18 | **5.1.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [iGreenEarth](https://appshunter.io/developer/351081815) | [Shenzhen Huizhidi Technology co.,ltd.](https://appshunter.io/developer/1135344154) |

## What reviewers say

### Sci

[App page](https://appshunter.io/ios/app/sci-fi-sounds-and-noises/id477955120)

Explore a universe of over 50 unique science fiction sound effects. This app offers a diverse collection of interstellar noises, from alien calls and laser blasts to spaceship engines and robotic chatter.

**Highlights:** Over 50 sci-fi sound effects, Alien sounds, Laser sounds, Spaceship sounds, Robot sounds, Weapon sounds, Mood music

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

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-drone-flight/id1142588158)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sci free?

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

### Is E free?

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

### Do Sci or E have ads?

Sci shows ads; E does not.

### Which is updated more often, Sci or E?

Sci ships an update every 4 months, and E every 3 months. Most recently, Sci was updated on November 1, 2026 and E on October 26, 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.*