# Mechanical Engineering Lab vs KIGAKU

The clearest difference is price: KIGAKU at Free against Mechanical Engineering Lab's $6.99. KIGAKU also leads on update cadence (fortnightly vs monthly) and iOS requirement (13.0 vs 17.0). Mechanical Engineering Lab's advantage is ads (none vs shown) and chart position (#198 vs unranked). On in-app purchases and device support there is nothing between them.

KIGAKU is free to download; Mechanical Engineering Lab costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mechanical Engineering Lab ships an update monthly, KIGAKU fortnightly. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Lab | KIGAKU |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Best chart rank | **#198** | — |
| Size | 5 MB | 24 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuhsiu Lai](https://appshunter.io/developer/433114647) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### Mechanical Engineering Lab

[App page](https://appshunter.io/ios/app/mechanical-engineering-lab/id6766063704)

**Currently charting:** #198 Top Paid · Education (US App Store)

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

**In-app purchases:** none


### KIGAKU

[App page](https://appshunter.io/ios/app/kigaku/id6766719349)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Engineering Lab free?

Mechanical Engineering Lab costs $6.99, with no in-app purchases.

### Is KIGAKU free?

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

### Do Mechanical Engineering Lab or KIGAKU have ads?

KIGAKU shows ads; Mechanical Engineering Lab does not.

### Which is updated more often, Mechanical Engineering Lab or KIGAKU?

Mechanical Engineering Lab ships an update monthly, and KIGAKU fortnightly. Most recently, Mechanical Engineering Lab was updated on October 12, 2026 and KIGAKU on October 10, 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.*