# Trig Solver vs Perfboard Lab

The clearest difference is iOS requirement: Trig Solver at 16.4 against Perfboard Lab's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Trig Solver sells 3 in-app purchases, starting at $4.99 per 7 days and Perfboard Lab sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Trig Solver | Perfboard Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Size | 54 MB | 61 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Pascal Schroeer](https://appshunter.io/developer/6818318951) |

## What reviewers say

### Trig Solver

[App page](https://appshunter.io/ios/app/trig-solver-trigonify/id6792816870)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trigonify Pro Weekly | $4.99 | per 7 days |
| Trigonify Pro Yearly | $34.99 | per year |
| Trigonify Pro Lifetime | $69.99 | one-time |


### Perfboard Lab

[App page](https://appshunter.io/ios/app/perfboard-lab/id6818318947)

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perfboard Lab Pro | $1.99 | per 7 days |
| Perfboard Lab Pro | $3.99 | per month |
| Perfboard Lab Pro | $22.99 | per year |


## Frequently asked questions

### Is Trig Solver free?

Trig Solver is free to download, with in-app purchases available.

### Is Perfboard Lab free?

Perfboard Lab is free to download, with in-app purchases available.

### Do Trig Solver or Perfboard Lab have ads?

Neither Trig Solver nor Perfboard Lab shows ads.

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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.*