250+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our ages and stages calculator list covers 250+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 2.5★ (21) | No | No | Jul 2026 |
| 2 |  | Free | 4.4★ (78) | No | No | May 2026 |
| 3 |  | Free | 4.5★ (3.3K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | Yes | No | May 2026 |
| 5 |  | Free | 4.7★ (60K) | No | No | Aug 2026 |
| 6 |  | Free | 4.9★ (404K) | Yes | No | Aug 2026 |
| 7 |  | Free | — | Yes | No | May 2026 |
| 8 |  | Free | 4.6★ (51K) | Yes | No | Aug 2026 |
This tool assists users of ASQ-3 and ASQ:SE-2 by quickly calculating chronological and adjusted ages for premature infants. It helps determine the correct questionnaire and accurately computes adjusted scores for omitted items.
Calculate your precise age in various units of time, from years down to seconds. Save ages, find remaining time until your next birthday, and use it for various counting needs like birthdays or pets.
Calculate your exact age in various units like months, days, hours, minutes, and seconds. This app also includes a BMI calculator for additional health insights.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
This utility app simplifies everyday calculations with a unique musical interface. It allows users to recall and edit previous expressions, view them clearly with a font controller, and offers standard backspace and clear functions.
This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.
This app offers a classic scientific calculator with both simple and engineering modes. It allows users to save calculations, customize the background with personal images, and preview expressions. It supports a range of Apple devices and includes dark/light modes.
A straightforward and reliable calculator application designed for iPad and iOS 9. It offers a standard calculation experience with a charming piano sound effect and is optimized for high-resolution screens.
Easily calculate exact ages in years, months, days, and even hours. Determine the age difference between two individuals for various personal and professional needs. This tool simplifies age-related calculations for eligibility, planning, and tracking.
A simple, neat, and brilliant calculator that displays entire calculations and answers at once. Personalize your experience by choosing your favorite color theme. Works on iPhone and iPod.
This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.
Calculate precise ages between two dates, including years, months, days, and even seconds. Track family profiles, log calculations, and discover upcoming birthdays with remaining time. It also analyzes past birthday celebrations by day of the week.
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.