# FrogShield vs Standard Deviation

FrogShield and Standard Deviation are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

FrogShield ships an update every 4 months, Standard Deviation every 2 months. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | FrogShield | Standard Deviation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (18 ratings)](https://appshunter.io/ios/app/frogshield/id1422000572/reviews)** | — |
| Number of ratings | **18** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 43 MB | 21 MB |
| Requires iOS | 13.2 | **13.0** |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Texas Christian University](https://appshunter.io/developer/329180418) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### FrogShield

[App page](https://appshunter.io/ios/app/frogshield/id1422000572)

This app allows users to make emergency calls and submit tips to law enforcement. It also provides a feature to monitor the safety of friends.

**Highlights:** Emergency call functionality, Submit tips to police, Friend safety monitoring, Cross-device compatibility

**In-app purchases:** none


### Standard Deviation

[App page](https://appshunter.io/ios/app/standard-deviation-calculator/id6444146244)

**In-app purchases:** none


## Frequently asked questions

### Is FrogShield free?

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

### Is Standard Deviation free?

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

### Do FrogShield or Standard Deviation have ads?

Neither FrogShield nor Standard Deviation shows ads.

### Which is updated more often, FrogShield or Standard Deviation?

FrogShield ships an update every 4 months, and Standard Deviation every 2 months. Most recently, FrogShield was updated on September 18, 2026 and Standard Deviation on September 12, 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.*