# Buoyancy Calc vs FTI Productivity Time Tracker

Buoyancy Calc and FTI Productivity Time Tracker are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | Buoyancy Calc | FTI Productivity Time Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (25 ratings)](https://appshunter.io/ios/app/buoyancy-calc/id1482332472/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 1 MB | 23 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eric Hamiter](https://appshunter.io/developer/1482332471) | [Faith Technologies Inc](https://appshunter.io/developer/1680963373) |

## What reviewers say

### Buoyancy Calc

[App page](https://appshunter.io/ios/app/buoyancy-calc/id1482332472)

Calculate the optimal weight for scuba diving based on environmental factors. Input your weight, water type, tank, and exposure suit to get a suggested weight for neutral buoyancy.

**Highlights:** Calculate suggested diving weight, Adjust for water type, Adjust for tank type, Adjust for exposure suit, Supports pounds and kilograms

**Features:** macOS Compatibility

**In-app purchases:** none


### FTI Productivity Time Tracker

[App page](https://appshunter.io/ios/app/fti-productivity-time-tracker/id6791686667)

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

**In-app purchases:** none


## Frequently asked questions

### Is Buoyancy Calc free?

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

### Is FTI Productivity Time Tracker free?

FTI Productivity Time Tracker is free to download, with no in-app purchases.

### Do Buoyancy Calc or FTI Productivity Time Tracker have ads?

Neither Buoyancy Calc nor FTI Productivity Time Tracker shows ads.

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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.*