# Standard Deviation Calc vs Gprs Compatec

The clearest difference is in-app purchases: Gprs Compatec at none against Standard Deviation Calc's 1. Standard Deviation Calc's advantage is update cadence (every 5 months vs every 57 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Standard Deviation Calc sells 1 one-off in-app purchase. Gprs Compatec asks for nothing beyond the download.

Standard Deviation Calc ships an update every 5 months, Gprs Compatec every 57 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Standard Deviation Calc | Gprs Compatec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (11 ratings)](https://appshunter.io/ios/app/standard-deviation-calc-sd/id1497525733/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 57 months |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 18 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [CONTINENTE INDUSTRIA MECANICA LTDA](https://appshunter.io/developer/1394726812) |

## What reviewers say

### Standard Deviation Calc

[App page](https://appshunter.io/ios/app/standard-deviation-calc-sd/id1497525733)

Calculate standard deviation for sample or population data. Input numerical values to find standard deviation, count, sum, mean, variance, and more. Get quick statistical insights with this easy-to-use tool.

**Highlights:** Calculate standard deviation, Sample or population data, Compute mean and variance, Count numerical values, Sum of numbers, List of differences

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

**In-app purchases (1)**

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


### Gprs Compatec

[App page](https://appshunter.io/ios/app/gprs-compatec/id1534146832)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Standard Deviation Calc free?

Standard Deviation Calc is free to download, with in-app purchases available.

### Is Gprs Compatec free?

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

### Do Standard Deviation Calc or Gprs Compatec have ads?

Neither Standard Deviation Calc nor Gprs Compatec shows ads.

### Which is updated more often, Standard Deviation Calc or Gprs Compatec?

Standard Deviation Calc ships an update every 5 months, and Gprs Compatec every 57 months. Most recently, Standard Deviation Calc was updated on October 8, 2026 and Gprs Compatec on October 4, 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.*