# Altered States vs One Big Projector

The clearest difference is update cadence: One Big Projector at every 3 days against Altered States's every 5 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Altered States sells 2 in-app purchases, starting at $4.99 per month and One Big Projector sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Altered States ships an update every 5 days, One Big Projector every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Altered States | One Big Projector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/one-big-projector-mapping/id6801368174/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 31 MB | 14 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kwong Wa Chu](https://appshunter.io/developer/1896742335) | [Hello Good Day LLC](https://appshunter.io/developer/1720039558) |

## What reviewers say

### Altered States

[App page](https://appshunter.io/ios/app/altered-states-live-fx/id6770429516)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Altered States Pro Monthly | $4.99 | per month |
| Altered States Pro Annual | $39.99 | per year |


### One Big Projector

[App page](https://appshunter.io/ios/app/one-big-projector-mapping/id6801368174)

Transform any projector into a dynamic light show. Easily map video, photos, and effects onto walls, objects, or stages without complex software. Preview your creations in AR before going live.

**Highlights:** Map content to any surface, Mesh warping for curved objects, Use own photos, videos, or live camera, Built-in library of effects, Audio-reactive effects, Layer multiple surfaces and content, AR preview

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $10.99 | per year |
| Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Altered States free?

Altered States is free to download, with in-app purchases available.

### Is One Big Projector free?

One Big Projector is free to download, with in-app purchases available.

### Do Altered States or One Big Projector have ads?

Neither Altered States nor One Big Projector shows ads.

### Which is updated more often, Altered States or One Big Projector?

Altered States ships an update every 5 days, and One Big Projector every 3 days. Most recently, Altered States was updated on November 5, 2026 and One Big Projector on October 31, 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.*