: Games run using HTML5 or similar web technologies, meaning they do not require downloads or specialized software to play.
| Feature | UBG95.GitHub | Coolmath Games | Hooda Math | 66EZ | | :--- | :--- | :--- | :--- | :--- | | | Low (GitHub whitelist) | High (known gaming domain) | Medium | High | | Ad clutter | None | Heavy | Moderate | Low | | Mobile support | Excellent (responsive) | Poor (Flash relic) | Good | Fair | | Game count | ~350 | ~1,000 | ~800 | ~200 | | Updates frequency | Weekly | Monthly | Rare | Sporadic | ubg95.github