# Titrate! vs Calculate Standard Deviation

The clearest difference is price: Calculate Standard Deviation at Free against Titrate!'s $0.99. Calculate Standard Deviation also leads on ratings volume (62 vs 1). Titrate!'s advantage is rating (5.0 vs 4.5) and in-app purchases (none vs 1). On device support and iOS requirement there is nothing between them.

Calculate Standard Deviation is free to download; Titrate! costs $0.99 up front. Calculate Standard Deviation sells 1 one-off in-app purchase. Titrate! asks for nothing beyond the download.

Titrate! holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calculate Standard Deviation has 62 ratings behind it against 1, so its average is the more settled of the two.

Titrate! ships an update weekly, Calculate Standard Deviation every 7 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Titrate! | Calculate Standard Deviation |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/titrate/id1581869752/reviews)** | [4.5 (62 ratings)](https://appshunter.io/ios/app/calculate-standard-deviation/id1591420646/reviews) |
| Number of ratings | 1 | **62** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 7 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 39 MB |
| Requires iOS | **14.5** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stephen van Eyk](https://appshunter.io/developer/1581869754) | [Asad Ahsan](https://appshunter.io/developer/1326954499) |

## What reviewers say

### Titrate!

[App page](https://appshunter.io/ios/app/titrate/id1581869752)

This simulation app provides a realistic, hands-on experience with acid-base titrations. Practice adding titrant drop-by-drop or in a steady stream, observe indicator color changes, and learn to avoid overshooting the endpoint. It's a valuable tool for teaching and practicing titration theory and techniques.

**Highlights:** Realistic titration simulation, Drop-wise or steady stream titrant addition, Observe meniscus and indicator color changes, Practice avoiding endpoint overshoot, Student mode for manual data collection, Screen annotation for teaching, Variety of acids, bases, and indicators

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculate Standard Deviation

[App page](https://appshunter.io/ios/app/calculate-standard-deviation/id1591420646)

This app calculates standard deviation, variance, and other statistical measures for a given set of values. It simplifies complex statistical formulas with a user-friendly interface and accurate results.

**Highlights:** Calculate Standard Deviation, Calculate Variance, Calculate Mean, Calculate Coefficient of Variance, Calculate Standard Error of Mean, User-friendly interface, Accurate statistical results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Deviation Premium | $4.99 | one-time |


## Frequently asked questions

### Is Titrate! free?

Titrate! costs $0.99, with no in-app purchases.

### Is Calculate Standard Deviation free?

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

### Which has better reviews, Titrate! or Calculate Standard Deviation?

Titrate! is rated higher. Titrate! averages 5.0 out of 5 from 1 ratings, while Calculate Standard Deviation averages 4.5 from 62 ratings.

### Do Titrate! or Calculate Standard Deviation have ads?

Calculate Standard Deviation shows ads; Titrate! does not.

### Which is updated more often, Titrate! or Calculate Standard Deviation?

Titrate! ships an update weekly, and Calculate Standard Deviation every 7 months. Most recently, Titrate! was updated on November 3, 2026 and Calculate Standard Deviation on November 3, 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.*