# iLlumination US vs Chart Builder

The clearest difference is rating: Chart Builder at 5.0 against iLlumination US's 3.6. Chart Builder also leads on update cadence (weekly vs every 2 months) and iOS requirement (15.3 vs 17.6). iLlumination US's advantage is in-app purchases (none vs 2). On price, ratings volume and device support there is nothing between them.

Both are free to download. Chart Builder sells 2 in-app purchases, starting at $7.99 per 7 days. iLlumination US asks for nothing beyond the download.

Chart Builder holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 42 and 26 respectively.

iLlumination US ships an update every 2 months, Chart Builder weekly. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | iLlumination US | Chart Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (42 ratings)](https://appshunter.io/ios/app/illumination-us-flashlight/id385896092/reviews) | **[5.0 (26 ratings)](https://appshunter.io/ios/app/chart-builder-vizzy/id6748272076/reviews)** |
| Number of ratings | **42** | 26 |
| Positive reviews | 52.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 23 MB | 54 MB |
| Requires iOS | 17.6 | **15.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erik Storli](https://appshunter.io/developer/312277396) | [ILYA BOIKA](https://appshunter.io/developer/1784103564) |

## What reviewers say

### iLlumination US

[App page](https://appshunter.io/ios/app/illumination-us-flashlight/id385896092)

This universal flashlight app transforms your device into a powerful illumination tool. It offers LED and screen-based lighting, adjustable brightness, strobe effects, and Morse code functionality. Customize your light with color and contrast options for various needs.

**Highlights:** LED and screen flashlight, Adjustable strobe modes, Morse code functionality, Color picker for screen light, Adjustable screen contrast, Screen lock feature

**Features:** macOS Compatibility

**In-app purchases:** none


### Chart Builder

[App page](https://appshunter.io/ios/app/chart-builder-vizzy/id6748272076)

Effortlessly generate professional charts using AI prompts or by selecting specific chart types. This app allows for easy data editing, visual comparison of datasets, and exporting creations as images. It's designed to simplify complex data visualization for everyone.

**Highlights:** AI prompt-driven chart generation, Manual chart type selection, In-app data editing, Tier maker functionality, Export charts as images, History and autosave

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Annual | $29.99 | per year |


## Frequently asked questions

### Is iLlumination US free?

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

### Is Chart Builder free?

Chart Builder is free to download, with in-app purchases available.

### Which has better reviews, iLlumination US or Chart Builder?

Chart Builder is rated higher. iLlumination US averages 3.6 out of 5 from 42 ratings, while Chart Builder averages 5.0 from 26 ratings.

### Which is updated more often, iLlumination US or Chart Builder?

iLlumination US ships an update every 2 months, and Chart Builder weekly. Most recently, iLlumination US was updated on September 28, 2026 and Chart Builder on September 19, 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.*