# Mobile Data Assistant vs CalcKey

Mobile Data Assistant and CalcKey both sit at 3.7 stars, but that hides the real split: 43% of Mobile Data Assistant's written reviews are positive against 0% of CalcKey's. CalcKey's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 weeks). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Mobile Data Assistant sells 1 one-off in-app purchase and CalcKey sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.7 for Mobile Data Assistant against 3.8 for CalcKey. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews are what separate them: 43% of Mobile Data Assistant's written reviews are positive against 0% of CalcKey's.

Mobile Data Assistant ships an update every 6 weeks, CalcKey every 3 weeks. The most recent releases landed on September 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Mobile Data Assistant | CalcKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (6 ratings)](https://appshunter.io/ios/app/mobile-data-assistant/id6455939775/reviews) | **[3.8 (8 ratings)](https://appshunter.io/ios/app/calckey-calculator-keyboard/id6748647909/reviews)** |
| Number of ratings | 6 | **8** |
| Positive reviews | **42.9% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 14 MB |
| Requires iOS | 17.0 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fausto Ristagno](https://appshunter.io/developer/482102205) | [Right Tracks IT Limited](https://appshunter.io/developer/1803615116) |

## What reviewers say

### Mobile Data Assistant

[App page](https://appshunter.io/ios/app/mobile-data-assistant/id6455939775)

Monitor your cellular and Wi-Fi data usage with detailed graphs and an interactive map. Manage multiple data plans, track consumption, and stay informed with customizable widgets. Avoid unexpected costs and waste with this intuitive data management tool.

**Highlights:** Monitor cellular and Wi-Fi data usage, Detailed real-time graphs, Interactive data consumption map, Manage multiple data plans, Customizable home and lock screen widgets, Track data plan renewal dates

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium lifetime | $2.99 | one-time |


### CalcKey

[App page](https://appshunter.io/ios/app/calckey-calculator-keyboard/id6748647909)

Perform calculations directly within any app using a smart keyboard extension. Get instant results for basic and scientific equations, with a history of your calculations. Enjoy a seamless typing experience and smart formatting.

**Highlights:** Keyboard calculator extension, Real-time results, Basic & scientific calculators, Calculation history, Smart formatting, Standalone app option

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcKey Pro Monthly | $3.99 | per month |
| One time purchase | $19.99 | one-time |


## Frequently asked questions

### Is Mobile Data Assistant free?

Mobile Data Assistant is free to download, with in-app purchases available.

### Is CalcKey free?

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

### Which has better reviews, Mobile Data Assistant or CalcKey?

CalcKey is rated higher. Mobile Data Assistant averages 3.7 out of 5 from 6 ratings, while CalcKey averages 3.8 from 8 ratings.

### Do Mobile Data Assistant or CalcKey have ads?

Mobile Data Assistant shows ads; CalcKey does not.

### Which is updated more often, Mobile Data Assistant or CalcKey?

Mobile Data Assistant ships an update every 6 weeks, and CalcKey every 3 weeks. Most recently, Mobile Data Assistant was updated on September 11, 2026 and CalcKey on September 9, 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.*