# ILW Light Mapper vs One Big Projector

The clearest difference is rating: One Big Projector at 5.0 against ILW Light Mapper's 4.3. One Big Projector also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). ILW Light Mapper's advantage is ratings volume (7 vs 1) and iOS requirement (15.0 vs 17.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. ILW Light Mapper sells 3 one-off in-app purchases 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.

One Big Projector holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: ILW Light Mapper has 7 ratings behind it against 1, so its average is the more settled of the two.

ILW Light Mapper ships an update every 2 weeks, One Big Projector every 3 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | ILW Light Mapper | One Big Projector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (7 ratings)](https://appshunter.io/ios/app/ilw-light-mapper/id6736877410/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/one-big-projector-mapping/id6801368174/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 364 MB | 14 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Stuart Griese](https://appshunter.io/developer/1773626597) | [Hello Good Day LLC](https://appshunter.io/developer/1720039558) |

## What reviewers say

### ILW Light Mapper

[App page](https://appshunter.io/ios/app/ilw-light-mapper/id6736877410)

Transform sculptures with animated light using this projection mapping tool. Import your videos or use the built-in library to calibrate and apply visuals. Features include multiple grids, corner offsets, and warp painting for precise alignment and dynamic effects.

**Highlights:** Video Import (.mp4 / H.264), Downloadable Artwork Library, Multiple Grids, Corner Offsets & Global Offset Control, Global Warp Painting Tool, Per Grid Masking, Timeline Scrubbing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Development | $2.99 | one-time |
| Organics | $5.99 | one-time |
| Support Development | $9.99 | one-time |


### 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 | $14.99 | per year |
| Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is ILW Light Mapper free?

ILW Light Mapper 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.

### Which has better reviews, ILW Light Mapper or One Big Projector?

One Big Projector is rated higher. ILW Light Mapper averages 4.3 out of 5 from 7 ratings, while One Big Projector averages 5.0 from 1 ratings.

### Do ILW Light Mapper or One Big Projector have ads?

ILW Light Mapper shows ads; One Big Projector does not.

### Which is updated more often, ILW Light Mapper or One Big Projector?

ILW Light Mapper ships an update every 2 weeks, and One Big Projector every 3 days. Most recently, ILW Light Mapper was updated on October 7, 2026 and One Big Projector on October 12, 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.*