99+ iOS apps & games curated and reviewed
Out of 99+ la diagonale apps and games on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 4.7★ (134) | Yes | No | Jul 2026 |
| 3 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 4 |  | Free | 4.6★ (241) | No | Yes | Jul 2026 |
| 5 |  | $49.99 | 3.8★ (12) | No | No | Jul 2026 |
| 6 |  | Free | 4.0★ (2) | No | Yes | May 2026 |
| 7 |  | Free | 4.2★ (203) | Yes | Yes | May 2026 |
| 8 |  | Free | 4.2★ (57) | Yes | Yes | Jul 2026 |
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Easily calculate lengths, angles, and areas of various geometric shapes. Input known values and instantly get precise results for a wide range of 2D and 3D figures. Ideal for students and engineers needing quick geometric computations.
Calculate side lengths, angles, area, and perimeter of right-angle triangles. Visualizes the triangle with adjustable precision and offers options to rotate, flip, and customize themes. Reuses previous entries for efficiency.
Easily calculate any side of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and offers an ad-free option.
This comprehensive French dictionary app provides an unparalleled description of the French language. It features over 110,000 words, extensive synonyms, etymologies, and literary citations, all accessible offline with a user-friendly interface and powerful search.
This game offers a fresh take on classic Sudoku with unique puzzle elements and charming graphics. Embark on a journey with characters and solve addictive puzzles with innovative twists.
A logic puzzle game where you fill in missing numbers sequentially, horizontally or vertically. Features multiple difficulty levels, over 500 puzzles, and helpful tools like a "Check" function to highlight errors. It also tracks your best completion times and offers Game Center achievements.
A logic puzzle game where you fill in missing numbers sequentially. Solve puzzles by connecting numbers horizontally, vertically, or diagonally across various difficulty levels. Features include hints, auto-save, and time tracking.
Explore diverse Sudoku variations beyond the classic rules. Enjoy modes like Jigsaw, Even-Odd, Hyper, and X, each offering unique challenges. With hundreds of levels and adjustable difficulty, this app provides endless brain-training fun.
Engage in a strategic board game similar to Connect Four, but with a unique 45-degree rotated board. Challenge a computer opponent, play with a friend on the same device, or compete in online ranked matches.
Engage your mind with a variety of Sudoku puzzles, including classic and unique variations like Diagonal, Irregular, and OddEven. Offers a no-ads experience with features to aid gameplay and track progress. Perfect for logic puzzle enthusiasts seeking a mental challenge.
Experience a unique Sudoku challenge with five interconnected grids. Apply standard Sudoku rules to each 9x9 grid, filling numbers to ensure each row, column, and region has one of each digit. Offers multiple difficulty levels and puzzle variations.
Solve logic puzzles by filling cells with diagonal lines, connecting corners, and satisfying numbered hints. Enjoy 900 handcrafted puzzles and a daily challenge with offline play and smart hints.
Create unique visual art by mirroring and reflecting your photos. This app offers powerful yet simple tools to transform everyday images into abstract masterpieces, perfect for sharing on social media.
This app helps mechanics perform vehicle drive cycles more efficiently. It provides real-time monitoring of emissions monitors and diagnostic trouble codes (DTCs), offering clear guidance and instant explanations to ensure vehicles pass inspection quickly and accurately.
Explore a variety of Sudoku puzzle types beyond the standard rules. Enjoy hundreds of levels across multiple difficulties and modes, with helpful features to assist your gameplay. Track your progress and compete for achievements.
This fitness platform helps you track daily activities, body metrics, and progress. It offers over 2000 exercises with 3D demonstrations, preset and custom workouts, and motivational badges. Sync workouts from online or Apple Health for a comprehensive fitness journey.
This comprehensive reference app offers clear, quality definitions from French language experts. It includes a vast dictionary, word discovery features, letter games, and a crossword puzzle assistant. Enjoy offline access and a comfortable reading experience with adjustable text size and a dark mode.