# Alien Symbol Decoder vs Spirit Box

The clearest difference is in-app purchases: Alien Symbol Decoder at none against Spirit Box's 5. Alien Symbol Decoder also leads on update cadence (every 9 days vs every 2 months) and device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Spirit Box sells 5 in-app purchases, starting at $4.99 per month. Alien Symbol Decoder asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Alien Symbol Decoder against 5.0 for Spirit Box. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Alien Symbol Decoder ships an update every 9 days, Spirit Box every 2 months. The most recent releases landed on October 10, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Alien Symbol Decoder | Spirit Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/alien-symbol-decoder/id1498396486/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/spirit-box-ghost-detector/id6757156837/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 46 MB | 21 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Jay Murphree](https://appshunter.io/developer/1496966366) | [林华 曹](https://appshunter.io/developer/1861712786) |

## What reviewers say

### Alien Symbol Decoder

[App page](https://appshunter.io/ios/app/alien-symbol-decoder/id1498396486)

Engage in an augmented reality scavenger hunt across a university campus. Decode hidden symbols to reveal messages and find bonus symbols to climb the leaderboard. Track your progress and review solved puzzles.

**Highlights:** Augmented reality symbol decoding, Hidden message discovery, Progress tracking, Review solved messages, Bonus symbol hunting, Leaderboard integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Spirit Box

[App page](https://appshunter.io/ios/app/spirit-box-ghost-detector/id6757156837)

This app uses your phone's sensors to detect electromagnetic anomalies, acting as a portal for spirit communication. Engage with entities through AI-powered dialogue, provoke reactions, and decode Electronic Voice Phenomena.

**Highlights:** EMF detection for anomalies, AI-powered spirit dialogue, Provoke mode for entity reactions, EVP decoder for voice phenomena, Entity codex with threat tiers, Real-time EMF dashboard

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per month |
| Pro Clearance (Monthly) | $4.99 | per month |
| Yearly Pro (3-Day Trial) | $19.99 | per year |
| Pro Clearance (Yearly) | $24.99 | per year |
| EMF SCAN | $4.99 | one-time |


## Frequently asked questions

### Is Alien Symbol Decoder free?

Alien Symbol Decoder is free to download, with no in-app purchases.

### Is Spirit Box free?

Spirit Box is free to download, with in-app purchases available.

### Which has better reviews, Alien Symbol Decoder or Spirit Box?

Alien Symbol Decoder and Spirit Box are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Alien Symbol Decoder or Spirit Box have ads?

Neither Alien Symbol Decoder nor Spirit Box shows ads.

### Which is updated more often, Alien Symbol Decoder or Spirit Box?

Alien Symbol Decoder ships an update every 9 days, and Spirit Box every 2 months. Most recently, Alien Symbol Decoder was updated on October 10, 2026 and Spirit Box on September 25, 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.*