# Attenuator vs DigiCompCalc

The clearest difference is in-app purchases: DigiCompCalc at none against Attenuator's 1. Attenuator's advantage is update cadence (every 7 months vs every 68 months) and ratings volume (8 vs 2). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Attenuator sells 1 one-off in-app purchase. DigiCompCalc asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Attenuator against 5.0 for DigiCompCalc. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Attenuator ships an update every 7 months, DigiCompCalc every 68 months. The most recent releases landed on September 14, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Attenuator | DigiCompCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/attenuator/id367216554/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/digicompcalc/id559620424/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 68 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 1 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tim E. Burrow](https://appshunter.io/developer/367216557) | [Ernie Zappacosta](https://appshunter.io/developer/509385502) |

## What reviewers say

### Attenuator

[App page](https://appshunter.io/ios/app/attenuator/id367216554)

Calculate output voltage, power, and attenuation based on input values and dB of attenuation. Features NMR-specific calculations for pulses and measures local magnetic fields and barometric pressure.

**Highlights:** Calculate output voltage and power, Specify input voltage (Vpp or Vrms), Calculate attenuation in dB, NMR pulse calculations, Measure local magnetic field, Display barometric pressure

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all ads | $1.99 | one-time |


### DigiCompCalc

[App page](https://appshunter.io/ios/app/digicompcalc/id559620424)

This utility app simplifies digital power compensator coefficient calculations. It allows users to input data and obtain results directly on their mobile device, eliminating the need for complex desktop software. Results can be emailed for easy sharing.

**Highlights:** Calculate coefficients from analog compensator values, Calculate coefficients directly using poles and zeros, Email results, Remembers last calculated variables, Dark Mode support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Attenuator free?

Attenuator is free to download, with in-app purchases available.

### Is DigiCompCalc free?

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

### Which has better reviews, Attenuator or DigiCompCalc?

Attenuator and DigiCompCalc are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.

### Do Attenuator or DigiCompCalc have ads?

Neither Attenuator nor DigiCompCalc shows ads.

### Which is updated more often, Attenuator or DigiCompCalc?

Attenuator ships an update every 7 months, and DigiCompCalc every 68 months. Most recently, Attenuator was updated on September 14, 2026 and DigiCompCalc on June 5, 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.*