# QSAFE24 Mobile vs Electronic Circuits Calc Pro

The clearest difference is price: QSAFE24 Mobile at Free against Electronic Circuits Calc Pro's $4.99. QSAFE24 Mobile also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (9.0 vs 17.0). Electronic Circuits Calc Pro's advantage is chart position (#200 vs unranked). On ads, in-app purchases and device support there is nothing between them.

QSAFE24 Mobile is free to download; Electronic Circuits Calc Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

QSAFE24 Mobile ships an update every 10 days, Electronic Circuits Calc Pro every 2 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | QSAFE24 Mobile | Electronic Circuits Calc Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Best chart rank | — | **#200** |
| Size | 39 MB | 19 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [ETS Polska Sp. z o.o.](https://appshunter.io/developer/1499361774) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### QSAFE24 Mobile

[App page](https://appshunter.io/ios/app/qsafe24-mobile/id1499361775)

**Features:** macOS Compatibility

**In-app purchases:** none


### Electronic Circuits Calc Pro

[App page](https://appshunter.io/ios/app/electronic-circuits-calc-pro/id1658493129)

**Currently charting:** #200 Top Paid · Utilities (US App Store)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is QSAFE24 Mobile free?

QSAFE24 Mobile is free to download, with no in-app purchases.

### Is Electronic Circuits Calc Pro free?

Electronic Circuits Calc Pro costs $4.99, with no in-app purchases.

### Do QSAFE24 Mobile or Electronic Circuits Calc Pro have ads?

Neither QSAFE24 Mobile nor Electronic Circuits Calc Pro shows ads.

### Which is updated more often, QSAFE24 Mobile or Electronic Circuits Calc Pro?

QSAFE24 Mobile ships an update every 10 days, and Electronic Circuits Calc Pro every 2 months. Most recently, QSAFE24 Mobile was updated on October 14, 2026 and Electronic Circuits Calc Pro on October 19, 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.*