# Electronic Lab Free vs 555 Timer & Oscillators Guide

The clearest difference is ads: Electronic Lab Free at none against 555 Timer & Oscillators Guide's shown. Electronic Lab Free also leads on update cadence (every 9 days vs every 5 months) and iOS requirement (8.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Electronic Lab Free ships an update every 9 days, 555 Timer & Oscillators Guide every 5 months. The most recent releases landed on September 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Electronic Lab Free | 555 Timer & Oscillators Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (16 ratings)](https://appshunter.io/ios/app/electronic-lab-free/id1114409558/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 5 months |
| Monetization | Free | — |
| Size | 51 MB | 24 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luai Elamir](https://appshunter.io/developer/1101020051) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Electronic Lab Free

[App page](https://appshunter.io/ios/app/electronic-lab-free/id1114409558)

This app provides electrical and computer engineering tools for professionals and hobbyists. It offers circuit design, simulation, component libraries, and measurement functionalities for on-the-go use.

**Highlights:** Circuit design and simulation, Component libraries and datasheets, Calculators and unit conversion, Arduino code editor, Waveform audio visualizer, Electronic color code identification

**Features:** macOS Compatibility

**In-app purchases:** none


### 555 Timer & Oscillators Guide

[App page](https://appshunter.io/ios/app/555-timer-and-oscillators-guide/id6504487994)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electronic Lab Free free?

Electronic Lab Free is free to download, with no in-app purchases.

### Is 555 Timer & Oscillators Guide free?

555 Timer & Oscillators Guide is free to download, with no in-app purchases.

### Do Electronic Lab Free or 555 Timer & Oscillators Guide have ads?

555 Timer & Oscillators Guide shows ads; Electronic Lab Free does not.

### Which is updated more often, Electronic Lab Free or 555 Timer & Oscillators Guide?

Electronic Lab Free ships an update every 9 days, and 555 Timer & Oscillators Guide every 5 months. Most recently, Electronic Lab Free was updated on September 26, 2026 and 555 Timer & Oscillators Guide on October 12, 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.*