# CSS Calculator Pro

> Swim performance calculator for critical swim speed and race time prediction. (iPhone/iPad app by Alexey Ovod.)

- Source: https://appshunter.io/ios/app/css-calculator-pro/id1082142936 (this page in markdown: same URL + `.md`)
- Developer: [Alexey Ovod](https://appshunter.io/developer/1545142178)
- Category: Sports, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 8.1 · 2 MB
- Languages: American English, Russian
- Released: 2016-02-17
- Data updated: 2026-08-17
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/css-calculator-pro/id1082142936/reviews.md

## What is CSS Calculator Pro?

With this simple app you will

- Learn how to perform critical swim speed test
- Calculate your critical swim speed and sprint distance index
- Predict your race time

## Key features

- Learn critical swim speed test
- Calculate critical swim speed
- Calculate sprint distance index
- Predict race time

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/css-calculator-pro/id1082142936/reviews.md

### 4/5 — Not pretty but works well

*2019-09-11*

The tag says it all really

### 1/5 — Don't bother does not work

*2017-05-25*

Won't let you put in time!!!!

## Frequently asked questions about CSS Calculator Pro

### What is CSS Calculator Pro used for?

CSS Calculator Pro is used to help swimmers learn about and calculate their critical swim speed (CSS) and sprint distance index. It also assists in predicting race times.

### Is CSS Calculator Pro free to use?

Yes, CSS Calculator Pro is available for free. There are no in-app purchases or advertisements within the application.

### What devices does CSS Calculator Pro support?

CSS Calculator Pro is designed for iOS devices, including iPhone, iPad, and iPod.

### How often is CSS Calculator Pro updated?

The app was last updated on January 29, 2018, with version 1.3. While it has not received recent updates, it remains functional for its core purpose.

### What is the age rating for CSS Calculator Pro?

CSS Calculator Pro has an age rating of 4+, making it suitable for a wide range of users.

### Can CSS Calculator Pro help me improve my swimming?

By understanding your critical swim speed and sprint distance index, you can better tailor your training. This can lead to more effective workouts and potentially improved race times.

### Does CSS Calculator Pro offer offline functionality?

The description does not specify offline capabilities, but given its nature as a calculation tool, it is likely to function without an internet connection.

## Version history (last 4 releases)

### 1.3 — 2018-01-29

This app has been updated by Apple to display the Apple Watch app icon.

Now you can enter more then 10 minutes time for 400m distance.

### 1.2 — 2016-03-08

Calculate Tempo Trainer Pro setting for CSS

### 1.1 — 2016-02-24

bug fixes

### 1.0 — 2016-02-17

No release notes.

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| [Swim Time Calculator](https://appshunter.io/ios/app/swim-time-calculator/id6670363039) | — | Free | Sports |

## More apps by Alexey Ovod

- [Solfa: learn musical notes.](https://appshunter.io/ios/app/solfa-learn-musical-notes/id1436741307)
- [Hearing: ear training. Piano.](https://appshunter.io/ios/app/hearing-ear-training-piano/id1474241582)
- [Rhythm: metronome tempo tutor](https://appshunter.io/ios/app/rhythm-metronome-tempo-tutor/id1545372234)
- [Chords: intervals and scales](https://appshunter.io/ios/app/chords-intervals-and-scales/id1545373465)
- [Ear training: notes and chords](https://appshunter.io/ios/app/ear-training-notes-and-chords/id1578165399)

All apps by Alexey Ovod: https://appshunter.io/developer/1545142178

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*