# Sci vs TranceGuide

The clearest difference is rating: TranceGuide at 5.0 against Sci's 3.9. TranceGuide also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Sci's advantage is ratings volume (14 vs 1). 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.

TranceGuide holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Sci has 14 ratings behind it against 1, so its average is the more settled of the two.

Sci ships an update every 4 months, TranceGuide every 5 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sci | TranceGuide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (14 ratings)](https://appshunter.io/ios/app/sci-fi-sounds-and-noises/id477955120/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tranceguide/id6749856786/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 53.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 6 MB |
| Requires iOS | 18 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [iGreenEarth](https://appshunter.io/developer/351081815) | [Andreas Marki](https://appshunter.io/developer/987153485) |

## 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


### TranceGuide

[App page](https://appshunter.io/ios/app/tranceguide/id6749856786)

Discover trance, psytrance, and goa gatherings globally with an interactive map and detailed event listings. Find parties and festivals from GoaBase.net with powerful filtering and privacy-friendly features.

**Highlights:** Discover trance, psytrance, and goa events, Interactive map with smart clustering, Powerful event filtering (distance, type, date), Detailed event information and flyers, Privacy-focused with no accounts or tracking, Customizable themes including a Goa Theme

**In-app purchases:** none


## Frequently asked questions

### Is Sci free?

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

### Is TranceGuide free?

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

### Which has better reviews, Sci or TranceGuide?

TranceGuide is rated higher. Sci averages 3.9 out of 5 from 14 ratings, while TranceGuide averages 5.0 from 1 ratings.

### Do Sci or TranceGuide have ads?

Sci shows ads; TranceGuide does not.

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

Sci ships an update every 4 months, and TranceGuide every 5 months. Most recently, Sci was updated on November 1, 2026 and TranceGuide on October 30, 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.*