# Electronics Toolkit Pro vs 555 Timer & Oscillators Pro

The clearest difference is price: Electronics Toolkit Pro at $1.99 against 555 Timer & Oscillators Pro's $4.99. Electronics Toolkit Pro also leads on iOS requirement (11.2 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Electronics Toolkit Pro costs $1.99 and 555 Timer & Oscillators Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Electronics Toolkit Pro | 555 Timer & Oscillators Pro |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/electronics-toolkit-pro/id1350353308/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | Paid | — |
| Size | 15 MB | 22 MB |
| Requires iOS | **11.2** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Electronial](https://appshunter.io/developer/1350247180) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Electronics Toolkit Pro

[App page](https://appshunter.io/ios/app/electronics-toolkit-pro/id1350353308)

This app provides a comprehensive suite of calculators and tables for electronics engineers and hobbyists. It simplifies complex calculations for resistors, capacitors, LEDs, Ohm's law, and more, along with useful reference tables for logic gates and ASCII codes.

**Highlights:** Resistor color code calculators, LED resistor calculation, Ohm's law calculator, Capacitance and inductance calculators, Unit converter, Logic gate truth tables, ASCII table

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

**In-app purchases:** none


### 555 Timer & Oscillators Pro

[App page](https://appshunter.io/ios/app/555-timer-and-oscillators-pro/id6504415162)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Electronics Toolkit Pro free?

Electronics Toolkit Pro costs $1.99, with no in-app purchases.

### Is 555 Timer & Oscillators Pro free?

555 Timer & Oscillators Pro costs $4.99, with no in-app purchases.

### Do Electronics Toolkit Pro or 555 Timer & Oscillators Pro have ads?

Neither Electronics Toolkit Pro nor 555 Timer & Oscillators Pro 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.*