# DigiCompCalc vs GridGrabber

The clearest difference is update cadence: GridGrabber at monthly against DigiCompCalc's every 68 months. GridGrabber also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

DigiCompCalc ships an update every 68 months, GridGrabber monthly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DigiCompCalc | GridGrabber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/digicompcalc/id559620424/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 68 months | **Monthly** |
| Monetization | Free | — |
| Size | 1 MB | 5 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ernie Zappacosta](https://appshunter.io/developer/509385502) | [Janis Abolins](https://appshunter.io/developer/6798236851) |

## What reviewers say

### 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


### GridGrabber

[App page](https://appshunter.io/ios/app/gridgrabber/id6798236849)

**In-app purchases:** none


## Frequently asked questions

### Is DigiCompCalc free?

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

### Is GridGrabber free?

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

### Do DigiCompCalc or GridGrabber have ads?

Neither DigiCompCalc nor GridGrabber shows ads.

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

DigiCompCalc ships an update every 68 months, and GridGrabber monthly. Most recently, DigiCompCalc was updated on November 1, 2026 and GridGrabber on October 31, 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.*