# Zeus IoT vs Electronics Reference Toolkit

The clearest difference is update cadence: Electronics Reference Toolkit at fortnightly against Zeus IoT's every 2 months. On price, ads, 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.

Zeus IoT ships an update every 2 months, Electronics Reference Toolkit fortnightly. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Zeus IoT | Electronics Reference Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (12 ratings)](https://appshunter.io/ios/app/electronics-reference-toolkit/id6757098692/reviews)** |
| Number of ratings | — | **12** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 35 MB | 7 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Onemind Services LLC](https://appshunter.io/developer/1614445078) | [Ha Do Thi Thu](https://appshunter.io/developer/1707030622) |

## What reviewers say

### Zeus IoT

[App page](https://appshunter.io/ios/app/zeus-iot/id1614445076)

**Features:** Vision Pro support

**In-app purchases:** none


### Electronics Reference Toolkit

[App page](https://appshunter.io/ios/app/electronics-reference-toolkit/id6757098692)

This app provides a comprehensive suite of tools for electronics calculations and reference. It includes calculators for resistors, LEDs, capacitors, and voltage dividers, along with a unit converter and transistor database. Designed for speed and offline use, it's ideal for students, hobbyists, and engineers.

**Highlights:** Resistor Calculator (4/5 band), Ohm's Law Calculator, LED Resistor Calculator, Capacitor Decoder, Voltage Divider Calculator, Unit Converter, Transistor Reference

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

**In-app purchases:** none


## Frequently asked questions

### Is Zeus IoT free?

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

### Is Electronics Reference Toolkit free?

Electronics Reference Toolkit is free to download, with no in-app purchases.

### Do Zeus IoT or Electronics Reference Toolkit have ads?

Neither Zeus IoT nor Electronics Reference Toolkit shows ads.

### Which is updated more often, Zeus IoT or Electronics Reference Toolkit?

Zeus IoT ships an update every 2 months, and Electronics Reference Toolkit fortnightly. Most recently, Zeus IoT was updated on October 5, 2026 and Electronics Reference Toolkit 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.*