# dB Calculator vs Electronics Engineer Helper

The clearest difference is review sentiment: Electronics Engineer Helper at 98% against dB Calculator's 43%. Electronics Engineer Helper also leads on rating (4.8 vs 4.3) and update cadence (monthly vs every 5 months). dB Calculator's advantage is in-app purchases (none vs 2) and iOS requirement (10.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Electronics Engineer Helper sells 2 in-app purchases, starting at $4.89 per year. dB Calculator asks for nothing beyond the download.

Electronics Engineer Helper holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Electronics Engineer Helper has 436 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 43% of dB Calculator's written reviews are positive against 98% of Electronics Engineer Helper's.

dB Calculator ships an update every 5 months, Electronics Engineer Helper monthly. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | dB Calculator | Electronics Engineer Helper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/db-calculator/id489100786/reviews) | **[4.8 (436 ratings)](https://appshunter.io/ios/app/electronics-engineer-helper/id896429646/reviews)** |
| Number of ratings | 3 | **436** |
| Positive reviews | 42.9% of reviews | **97.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 92 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 12+ |
| Developer | [Rohde & Schwarz GmbH & Co. KG](https://appshunter.io/developer/364229795) | [Rostyslav Dovhaliuk](https://appshunter.io/developer/896429649) |

## What reviewers say

### dB Calculator

[App page](https://appshunter.io/ios/app/db-calculator/id489100786)

This app provides five distinct calculation tools for power levels, voltage, and signal reflection. It helps convert between various units like dBm, watt, and dB, and calculate VSWR and reflection coefficients.

**Highlights:** dBm and watt power level calculations, Correlated and uncorrelated voltage calculations, Unit conversion for dBm, dBW, mW, W, mV, V, dBV, dBµV, dBu, Linear power/voltage ratios to dB conversion, VSWR, reflection coefficient, and mismatch loss calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### Electronics Engineer Helper

[App page](https://appshunter.io/ios/app/electronics-engineer-helper/id896429646)

This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.

**Highlights:** Datasheet search, Resistor color code calculator, Electronic schematic symbols, Pinouts guide, Ohm's law calculator, AWG converter, Unit converter

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year Subscription | $4.89 | per year |
| Lifetime PRO Version | $12.49 | one-time |

**What reviewers like**

- 🚀 Useful tool
- 👍 Comprehensive reference
- 👍 Intuitive and well-designed
- 👍 Saves time and effort
- 👍 Excellent for beginners and professionals

**What reviewers complain about**

- 💰 Some advanced features require paid subscription
- 🇷🇺 Some content in Russian language

**Reported bugs**

- Incorrect resistor color code display for some values
- In-app purchase option not working for some users

**Requested features**

- Add more circuit schematics and examples
- Include ASCII code to decimal, hex, and octal conversion
- Expand the pinout section with more details
- Add active filter (RC, RL, RLC, LC) calculators
- Include digital to analog converter, transistor, and transformer calculators


## Frequently asked questions

### Is dB Calculator free?

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

### Is Electronics Engineer Helper free?

Electronics Engineer Helper is free to download, with in-app purchases available.

### Which has better reviews, dB Calculator or Electronics Engineer Helper?

Electronics Engineer Helper is rated higher. dB Calculator averages 4.3 out of 5 from 3 ratings, while Electronics Engineer Helper averages 4.8 from 436 ratings.

### Do dB Calculator or Electronics Engineer Helper have ads?

Neither dB Calculator nor Electronics Engineer Helper shows ads.

### Which is updated more often, dB Calculator or Electronics Engineer Helper?

dB Calculator ships an update every 5 months, and Electronics Engineer Helper monthly. Most recently, dB Calculator was updated on September 30, 2026 and Electronics Engineer Helper on September 29, 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.*