# Simple Pendulum Calculator — Period, Maximum height, Energy

> Physics calculator for pendulum period, height, energy, and speed. (iPhone/iPad app by Tan Chia Ling.)

- Source: https://appshunter.io/ios/app/simple-pendulum-calculator/id1397285555 (this page in markdown: same URL + `.md`)
- Developer: [Tan Chia Ling](https://appshunter.io/developer/321121189)
- Category: Utilities, Productivity
- Price: $2.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13 · 1 MB
- Languages: American English
- Released: 2018-07-23
- Data updated: 2026-07-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/simple-pendulum-calculator/id1397285555/reviews.md

## What is Simple Pendulum Calculator?

The Simple Pendulum Calculator is a physics/math calculator designed to find the pendulum period, frequency, maximum height, energy of the system, or speed at the bottom quickly and easily.

Features:
- Instant calculation.
- Results are copyable to other apps.
- Formulas are included as reference.
- Supports up to 16 decimal places.
- Supports various units for each input.
- Works seamlessly on both iPhone and iPad.
- Lightweight, compact app optimized for everyday use.
- Ad-free and built with privacy in mind.

A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force acting on the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. The period depends on the length of the pendulum and also to a slight degree on the amplitude, the width of the pendulum's swing.

Simple Pendulum equation:

T = 2π * √L/g

Where:
T : Period of the simple pendulum
L : Length of the pendulum
g : Acceleration due to gravity, the standard gravity of Earth is 9.80665m/s2

The velocity at the bottom of the swing is:

v = √2g * L * (1-cos(a))

Where:
v : The velocity at the bottom of the pendulum
a : The angle from the vertical

The Maximum height is:

H = L - L * cos(a)

The system energy is:

E = m * v2 / 2

Where:
E : System energy
m : Mass of the object
v : The velocity at the bottom of the pendulum

Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

## Key features

- Instant pendulum calculations
- Copyable results
- Included formulas
- Supports various units
- High precision (16 decimal places)
- Ad-free and private


## Frequently asked questions about Simple Pendulum Calculator

### What can Simple Pendulum Calculator compute?

Simple Pendulum Calculator can compute the pendulum period, frequency, maximum height, energy of the system, and speed at the bottom of the swing. It provides instant calculations with results that can be copied to other applications.

### Does Simple Pendulum Calculator have ads?

No, Simple Pendulum Calculator is ad-free and built with privacy in mind. Users can perform calculations without any interruptions from advertisements.

### What devices does Simple Pendulum Calculator support?

Simple Pendulum Calculator works seamlessly on iPhone and iPad devices. It is optimized for everyday use on these platforms.

### How precise are the calculations in Simple Pendulum Calculator?

The calculator supports up to 16 decimal places, ensuring high precision for all its physics computations. It also supports various units for each input.

### Is Simple Pendulum Calculator suitable for beginners?

Yes, the app includes formulas as a reference, making it useful for students and beginners learning about pendulums. Its straightforward interface allows for quick and easy calculations.

### What is the price of Simple Pendulum Calculator?

Simple Pendulum Calculator is available for a one-time purchase of $2.99. This price grants access to all its features without any subscriptions or in-app purchases.

### How often is Simple Pendulum Calculator updated?

The app was last updated on February 27, 2026, indicating ongoing support and potential for future improvements. The current version is 1.3.

### What is the age rating for Simple Pendulum Calculator?

Simple Pendulum Calculator has an age rating of 4+, making it suitable for a wide range of users, including children and students learning physics.

## Version history (last 4 releases)

### 1.3 — 2026-02-27

- Updated for the newest devices.
- Minor bugs fixed.

### 1.2 — 2024-03-25

- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.

### 1.1 — 2021-01-06

- Update for Newest Devices
- Bug Fixed

### 1.0 — 2018-06-14

No release notes.

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All apps by Tan Chia Ling: https://appshunter.io/developer/321121189

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-05.*