# Horror Sound Effects vs Lost on Infinity

The clearest difference is in-app purchases: Horror Sound Effects at none against Lost on Infinity's 1. Lost on Infinity's advantage is ads (none vs shown) and update cadence (monthly vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Lost on Infinity sells 1 one-off in-app purchase. Horror Sound Effects asks for nothing beyond the download.

Horror Sound Effects ships an update every 3 months, Lost on Infinity monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Horror Sound Effects | Lost on Infinity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/horror-sound-effects/id6449743744/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 20 MB | 38 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Sweetapple Ltd](https://appshunter.io/developer/429178858) |

## What reviewers say

### Horror Sound Effects

[App page](https://appshunter.io/ios/app/horror-sound-effects/id6449743744)

Explore a collection of eerie sound effects perfect for horror enthusiasts and Halloween events. Create spooky productions with zombie sounds, ghost voices, and chilling music to enhance fear and excitement. Ideal for pranks, parties, and igniting your imagination.

**Highlights:** Eerie sound effects collection, Suitable for horror movies, Halloween event sounds, Zombie and ghost voices, Spooky music and heartbeat effects, Prank and party use

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

**In-app purchases:** none


### Lost on Infinity

[App page](https://appshunter.io/ios/app/lost-on-infinity-read-along/id6470133109)

This is a narrated, musical audiobook adventure with clear read-along English text and illustrations. It offers hours of educational and thought-provoking content for children, English learners, and story enthusiasts. The story explores themes of extinction, biomimicry, and ecology with a hopeful message.

**Highlights:** Narrated read-along audiobook, Musical story with sound effects, Educational content, Illustrations and pictures, Themes of ecology and conservation, Suitable for all ages

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lost on Infinity full story | $4.99 | one-time |


## Frequently asked questions

### Is Horror Sound Effects free?

Horror Sound Effects is free to download, with no in-app purchases.

### Is Lost on Infinity free?

Lost on Infinity is free to download, with in-app purchases available.

### Do Horror Sound Effects or Lost on Infinity have ads?

Horror Sound Effects shows ads; Lost on Infinity does not.

### Which is updated more often, Horror Sound Effects or Lost on Infinity?

Horror Sound Effects ships an update every 3 months, and Lost on Infinity monthly. Most recently, Horror Sound Effects was updated on November 3, 2026 and Lost on Infinity on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*