# FLOWBIO vs Kilo Training Systems

The clearest difference is update cadence: FLOWBIO at fortnightly against Kilo Training Systems's monthly. Kilo Training Systems's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

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

FLOWBIO ships an update fortnightly, Kilo Training Systems monthly. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | FLOWBIO | Kilo Training Systems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/flowbio/id1614407048/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | — |
| Size | 37 MB | 46 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [FLOWBIO LTD](https://appshunter.io/developer/1607898930) | [kilo training systems limited](https://appshunter.io/developer/1738491546) |

## What reviewers say

### FLOWBIO

[App page](https://appshunter.io/ios/app/flowbio/id1614407048)

This app analyzes sweat data to provide personalized hydration and recovery strategies for athletes. It connects to a sweat sensor to track fluid and sodium loss, offering tailored plans and pre-session predictions to optimize performance.

**Highlights:** Personalized hydration strategies, Tailored recovery plans, Pre-session performance predictions, Intake logging, Support for electrolyte brands, Integrations with Garmin, Wahoo, Zwift, Coros

**Features:** macOS Compatibility

**In-app purchases:** none


### Kilo Training Systems

[App page](https://appshunter.io/ios/app/kilo-training-systems/id6480216990)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLOWBIO free?

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

### Is Kilo Training Systems free?

Kilo Training Systems is free to download, with no in-app purchases.

### Do FLOWBIO or Kilo Training Systems have ads?

Neither FLOWBIO nor Kilo Training Systems shows ads.

### Which is updated more often, FLOWBIO or Kilo Training Systems?

FLOWBIO ships an update fortnightly, and Kilo Training Systems monthly. Most recently, FLOWBIO was updated on September 18, 2026 and Kilo Training Systems on September 20, 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.*