Explore a whimsical 3D city filled with interactive elements and hidden surprises. This app began as a fun 'About' screen for a calculator and evolved into a playful exploration toy with driving and collectible elements.






18+ iOS apps & games curated and reviewed
About by PCalc is the household name in about by pcalc, but it's far from the only option. We track 18+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.7★ (23) | No | No | Oct 2026 | ||
| 2 | Free | 4.3★ (337) | No | No | Nov 2026 | ||
| 3 | Free | 4.9★ (109K) | Yes | No | Nov 2026 | ||
| 4 | Free | 4.0★ (195) | Yes | No | Oct 2026 | ||
| 5 | Free | 4.8★ (14) | No | No | Nov 2026 | ||
| 6 | Free | 5.0★ (2) | No | Yes | May 2026 | ||
| 7 | Free | 4.9★ (70) | No | No | May 2026 | ||
| 8 | Free | 4.8★ (67) | No | No | Oct 2026 |






Explore a whimsical 3D city filled with interactive elements and hidden surprises. This app began as a fun 'About' screen for a calculator and evolved into a playful exploration toy with driving and collectible elements.



This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.






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