# Simple Pendulum Calculator vs 70 Degree

The clearest difference is price: 70 Degree at Free against Simple Pendulum Calculator's $2.99. 70 Degree also leads on update cadence (every 6 months vs every 31 months) and ratings volume (10 vs 1). Simple Pendulum Calculator's advantage is rating (5.0 vs 2.9) and ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

70 Degree is free to download; Simple Pendulum Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Pendulum Calculator holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: 70 Degree has 10 ratings behind it against 1, so its average is the more settled of the two.

Simple Pendulum Calculator ships an update every 31 months, 70 Degree every 6 months. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Simple Pendulum Calculator | 70 Degree |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-pendulum-calculator/id1397285555/reviews)** | [2.9 (10 ratings)](https://appshunter.io/ios/app/70-degree-smart-protractor/id1439735699/reviews) |
| Number of ratings | 1 | **10** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 6 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 19 MB |
| Requires iOS | 13 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [sekleung chang](https://appshunter.io/developer/867512958) |

## What reviewers say

### Simple Pendulum Calculator

[App page](https://appshunter.io/ios/app/simple-pendulum-calculator/id1397285555)

This physics calculator quickly computes pendulum period, frequency, maximum height, energy, and speed. It supports various units, offers instant calculations with copyable results, and includes formulas for reference. Designed for privacy and efficiency, it works seamlessly on iOS devices.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 70 Degree

[App page](https://appshunter.io/ios/app/70-degree-smart-protractor/id1439735699)

This utility app helps you measure angles with your iPhone. It provides notifications when a target angle is reached, with options for visual and auditory alerts.

**Highlights:** Angle degree measurement, Customizable angle alerts, Visual strobe notifications, Auditory alerts, Vibration alerts

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple Pendulum Calculator free?

Simple Pendulum Calculator costs $2.99, with no in-app purchases.

### Is 70 Degree free?

70 Degree is free to download, with no in-app purchases.

### Which has better reviews, Simple Pendulum Calculator or 70 Degree?

Simple Pendulum Calculator is rated higher. Simple Pendulum Calculator averages 5.0 out of 5 from 1 ratings, while 70 Degree averages 2.9 from 10 ratings.

### Do Simple Pendulum Calculator or 70 Degree have ads?

70 Degree shows ads; Simple Pendulum Calculator does not.

### Which is updated more often, Simple Pendulum Calculator or 70 Degree?

Simple Pendulum Calculator ships an update every 31 months, and 70 Degree every 6 months. Most recently, Simple Pendulum Calculator was updated on September 29, 2026 and 70 Degree on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*