250+ iOS apps curated and reviewed
Out of 250+ variable definition apps on iOS, 19 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 | 4.7★ (23) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.6★ (726) | No | No | Sep 2026 | |
| 3 |  | Free | 4.5★ (50K) | Yes | Yes | Oct 2026 | |
| 4 |  | Free | 3.5★ (4) | No | Yes | May 2026 | |
| 5 |  | Free | — | Yes | Yes | May 2026 | |
| 6 |  | $1.99 | 4.7★ (899) | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.0★ (1) | No | No | May 2026 | |
| 8 |  | Free | 4.6★ (100) | No | No | Sep 2026 |
This AI-powered assistant helps users prepare for job interviews by generating professional responses to questions and conducting mock interviews tailored to their resume and job requirements. It offers fast, structured answers and regularly updates its question bank to reflect current hiring trends.
Enhance your mathematical understanding with a comprehensive reference covering 23 subjects, over 200 articles, and interactive illustrations. Explore detailed explanations, solved problems, and proofs to master concepts from algebra to calculus. Access all content and features with a premium upgrade.
This app offers a free, powerful alternative to hardware graphing calculators. It supports basic to complex math, including graphing, statistics, and matrix operations, with a built-in user manual for assistance.
