# Machining Calculator vs Trig Solver

The clearest difference is update cadence: Machining Calculator at every 5 months against Trig Solver's every 28 months. Trig Solver's advantage is review sentiment (74% vs 55%) and ratings volume (78 vs 4). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.3 for Machining Calculator against 4.3 for Trig Solver. That said, the two scores are not equally well evidenced: Trig Solver has 78 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 55% of Machining Calculator's written reviews are positive against 74% of Trig Solver's.

Machining Calculator ships an update every 5 months, Trig Solver every 28 months. The most recent releases landed on August 29, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Machining Calculator | Trig Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/machining-calculator/id389011280/reviews) | [4.3 (78 ratings)](https://appshunter.io/ios/app/trig-solver/id398450227/reviews) |
| Number of ratings | 4 | **78** |
| Positive reviews | 54.5% of reviews | **74.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 28 months |
| Monetization | Free | Free |
| Size | 5 MB | 8 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [AB Sandvik Coromant](https://appshunter.io/developer/1789776926) | [Creature Code Mobile, LLC](https://appshunter.io/developer/386736750) |

## What reviewers say

### Machining Calculator

[App page](https://appshunter.io/ios/app/machining-calculator/id389011280)

This app helps engineers and operators optimize machining performance by calculating optimal cut settings for turning, milling, drilling, and tapping. It demonstrates how minor parameter adjustments can significantly impact overall results.

**Highlights:** Calculate cut settings, Optimize turning performance, Optimize milling performance, Optimize drilling performance, Optimize tapping performance, Demonstrates parameter impact

**Features:** macOS Compatibility

**In-app purchases:** none


### Trig Solver

[App page](https://appshunter.io/ios/app/trig-solver/id398450227)

This application calculates unknown sides and angles of both regular and right triangles. It supports various input combinations, including two sides and an angle, two angles and a side, three sides, or two sides and an angle for right triangles.

**Highlights:** Regular triangle solver, Right triangle solver, Calculate with 2 sides and an angle, Calculate with 2 angles and a side, Calculate with 3 sides, Calculate with side and angle (right triangle)

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Fast calculations
- ✅ Accurate results (for many users)
- 💡 Useful for schoolwork
- 🛠️ Great for job site/machinists

**What reviewers complain about**

- 🐛 Inaccurate results reported
- 💸 Ads are present and distracting
- 📉 Rounding issues
- 🚫 No option to remove ads (for some)
- ⚠️ App stopped working after updates

**Reported bugs**

- Calculator rounds to '7' and '0'
- Regular triangle calculations not correct
- Answers in the wrong place (angles reversed)
- App doesn't work anymore after update
- Can't see input in dark mode

**Requested features**

- Rotate the triangle
- Show the work/steps
- Add square root functionality
- Option to pay to remove ads
- Modify single value without reset


## Frequently asked questions

### Is Machining Calculator free?

Machining Calculator is free to download, with no in-app purchases.

### Is Trig Solver free?

Trig Solver is free to download, with no in-app purchases.

### Which has better reviews, Machining Calculator or Trig Solver?

Machining Calculator and Trig Solver are both rated 4.3 out of 5 on the App Store, from 4 and 78 ratings respectively.

### Do Machining Calculator or Trig Solver have ads?

Neither Machining Calculator nor Trig Solver shows ads.

### Which is updated more often, Machining Calculator or Trig Solver?

Machining Calculator ships an update every 5 months, and Trig Solver every 28 months. Most recently, Machining Calculator was updated on August 29, 2026 and Trig Solver on September 22, 2026.

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