# FLOWBIO vs Threkka

The clearest difference is in-app purchases: FLOWBIO at none against Threkka's 8. Threkka's advantage is iOS requirement (15.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Threkka sells 8 one-off in-app purchases. FLOWBIO asks for nothing beyond the download.

FLOWBIO ships an update fortnightly, Threkka every 9 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | FLOWBIO | Threkka |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free | — |
| Size | 37 MB | 470 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [FLOWBIO LTD](https://appshunter.io/developer/1607898930) | [Chock Hoss Ltd](https://appshunter.io/developer/672280106) |

## 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


### Threkka

[App page](https://appshunter.io/ios/app/threkka/id6738742541)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Muxels | $0.49 | one-time |
| Pile of Muxels | $0.99 | one-time |
| Sack of Muxels | $1.99 | one-time |
| Box of Muxels | $3.99 | one-time |
| Crate of Muxels | $6.99 | one-time |
| Barrel of Muxels | $11.99 | one-time |
| Chest of Muxels | $24.99 | one-time |
| Safe of Muxels | $49.99 | one-time |


## Frequently asked questions

### Is FLOWBIO free?

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

### Is Threkka free?

Threkka is free to download, with in-app purchases available.

### Do FLOWBIO or Threkka have ads?

Neither FLOWBIO nor Threkka shows ads.

### Which is updated more often, FLOWBIO or Threkka?

FLOWBIO ships an update fortnightly, and Threkka every 9 days. Most recently, FLOWBIO was updated on October 5, 2026 and Threkka on October 10, 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.*