# HTML Sandbox³ vs Cartogram

The clearest difference is in-app purchases: HTML Sandbox³ at none against Cartogram's 1. HTML Sandbox³ also leads on update cadence (daily vs every 2 weeks). Cartogram's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Cartogram sells 1 one-off in-app purchase. HTML Sandbox³ asks for nothing beyond the download.

HTML Sandbox³ ships an update daily, Cartogram every 2 weeks. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | HTML Sandbox³ | Cartogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/html-sandbox/id6467677088/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | Free | — |
| Size | 13 MB | 10 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Roembach](https://appshunter.io/developer/1632108694) | [CENTAUR LABS OU](https://appshunter.io/developer/1790899201) |

## What reviewers say

### HTML Sandbox³

[App page](https://appshunter.io/ios/app/html-sandbox/id6467677088)

Design custom lock and home screens with dynamic shortcuts for weather, battery, calendar, and RSS feeds. Join a large community for themes and support.

**Highlights:** Custom lock screen design, Custom home screen design, Dynamic shortcut integration, Weather shortcuts, Battery status shortcuts, Calendar event shortcuts, RSS feed shortcuts

**In-app purchases:** none


### Cartogram

[App page](https://appshunter.io/ios/app/cartogram/id6760616439)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cartogram Pro | $3.99 | one-time |


## Frequently asked questions

### Is HTML Sandbox³ free?

HTML Sandbox³ is free to download, with no in-app purchases.

### Is Cartogram free?

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

### Do HTML Sandbox³ or Cartogram have ads?

Neither HTML Sandbox³ nor Cartogram shows ads.

### Which is updated more often, HTML Sandbox³ or Cartogram?

HTML Sandbox³ ships an update daily, and Cartogram every 2 weeks. Most recently, HTML Sandbox³ was updated on September 11, 2026 and Cartogram on September 8, 2026.

---

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