# CamSys vs Inductor Calculator Master

The clearest difference is in-app purchases: CamSys at none against Inductor Calculator Master's 2. CamSys also leads on ads (none vs shown) and iOS requirement (9.0 vs 13.0). Inductor Calculator Master's advantage is update cadence (daily vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. Inductor Calculator Master sells 2 one-off in-app purchases. CamSys asks for nothing beyond the download.

CamSys ships an update every 2 weeks, Inductor Calculator Master daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CamSys | Inductor Calculator Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 37 MB | 33 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alltion (Guangxi) Instrument Co., Ltd.](https://appshunter.io/developer/1483736906) | [Le Minh Tran](https://appshunter.io/developer/1896777000) |

## What reviewers say

### CamSys

[App page](https://appshunter.io/ios/app/camsys/id1483736907)

**Features:** macOS Compatibility

**In-app purchases:** none


### Inductor Calculator Master

[App page](https://appshunter.io/ios/app/inductor-calculator-master/id6772124135)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Premium Upgrade | $1.99 | one-time |


## Frequently asked questions

### Is CamSys free?

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

### Is Inductor Calculator Master free?

Inductor Calculator Master is free to download, with in-app purchases available.

### Do CamSys or Inductor Calculator Master have ads?

Inductor Calculator Master shows ads; CamSys does not.

### Which is updated more often, CamSys or Inductor Calculator Master?

CamSys ships an update every 2 weeks, and Inductor Calculator Master daily. Most recently, CamSys was updated on November 3, 2026 and Inductor Calculator Master on October 31, 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.*