# Uncertainty Calculator vs UTMB Safe

The clearest difference is price: UTMB Safe at Free against Uncertainty Calculator's $3.99. UTMB Safe also leads on ratings volume (5 vs 1) and iOS requirement (15.6 vs 17.0). Uncertainty Calculator's advantage is update cadence (every 3 months vs every 11 months) and rating (5.0 vs 4.8). On ads, in-app purchases and device support there is nothing between them.

UTMB Safe is free to download; Uncertainty Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Uncertainty Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: UTMB Safe has 5 ratings behind it against 1, so its average is the more settled of the two.

Uncertainty Calculator ships an update every 3 months, UTMB Safe every 11 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Uncertainty Calculator | UTMB Safe |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uncertainty-calculator/id1170905440/reviews)** | [4.8 (5 ratings)](https://appshunter.io/ios/app/utmb-safe/id1270366512/reviews) |
| Number of ratings | 1 | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Paid | **Free** |
| Size | 1 MB | 30 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [UTMB Healthcare Systems, Inc](https://appshunter.io/developer/1270366511) |

## What reviewers say

### Uncertainty Calculator

[App page](https://appshunter.io/ios/app/uncertainty-calculator/id1170905440)

This app allows users to perform error propagation calculations for mathematical expressions involving uncertain variables. It supports absolute and relative error inputs, various functions, and trigonometric calculations in degrees or radians. The tool helps ensure accurate reporting of results based on estimated errors.

**Highlights:** Error propagation calculations, Absolute and relative error input, Support for mathematical functions, Trigonometric calculations (degrees/radians), Variable combination in expressions, Significant figure guidance

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

**In-app purchases:** none


### UTMB Safe

[App page](https://appshunter.io/ios/app/utmb-safe/id1270366512)

This app provides essential safety features for the University of Texas Medical Branch community. It delivers critical safety alerts and offers immediate access to campus safety resources, ensuring users are prepared for emergencies.

**Highlights:** Safety notifications, Emergency help contact, Campus safety resources, Instant alerts, Preparedness for emergencies

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

**In-app purchases:** none


## Frequently asked questions

### Is Uncertainty Calculator free?

Uncertainty Calculator costs $3.99, with no in-app purchases.

### Is UTMB Safe free?

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

### Which has better reviews, Uncertainty Calculator or UTMB Safe?

Uncertainty Calculator is rated higher. Uncertainty Calculator averages 5.0 out of 5 from 1 ratings, while UTMB Safe averages 4.8 from 5 ratings.

### Do Uncertainty Calculator or UTMB Safe have ads?

Neither Uncertainty Calculator nor UTMB Safe shows ads.

### Which is updated more often, Uncertainty Calculator or UTMB Safe?

Uncertainty Calculator ships an update every 3 months, and UTMB Safe every 11 months. Most recently, Uncertainty Calculator was updated on October 29, 2026 and UTMB Safe on October 24, 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.*