HTML Sandbox³ vs Cartogram
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HTML Sandbox³
Design custom lock and home screens with dynamic shortcuts for weather, battery, calendar, and RSS feeds. Join a large community for themes and support.
- Custom lock screen design
- Custom home screen design
- Dynamic shortcut integration
- Weather shortcuts
- Battery status shortcuts
- Calendar event shortcuts
- RSS feed shortcuts
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The HTML Sandbox app allows you to create custom lockscreens and homescreens using shortcuts app incl. weather, battery status, calendar events, RSS feeds and more. Download of complimentary shortcut can be found in app. With over 18,000 members, join the supportive HTML Sandbox community to find new themes and get 24/7 assistance. Please note this app is designed for iPhone only.
Cartogram
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Turn your photo library into a beautiful map wallpaper. Cartogram reads the GPS locations from your photos and renders a heatmap overlay on a stylish vector map, showing where you've been right on your iPhone. Download Cartogram for free and start with two hand-crafted themes: Cyberpunk and Midnight. Unlock Cartogram Pro with a one-time purchase to get all color themes. Features: - Generates wallpapers from your geotagged photo locations - Free tier includes two themes: Cyberpunk and Midnight - Cartogram Pro unlocks Ember, Ghost, and Moss - Auto-detects your current location or set any place manually - Save generated wallpapers directly to Photos - Privacy-first: all processing happens on-device, no data leaves your phone - No account required, no tracking, no ads iOS: Full-screen preview with pan, zoom, and rotation. Map data from OpenStreetMap contributors, rendered with OpenFreeMap.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | HTML Sandbox³ | Cartogram |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Daily — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Eric Roembach | CENTAUR LABS OU |
In-app purchases
HTML Sandbox³
No in-app purchases
Cartogram
- Cartogram Pro$3.99
