# FermentFlow vs ScaNavi

The clearest difference is in-app purchases: FermentFlow at none against ScaNavi's 1. FermentFlow also leads on update cadence (every 3 days vs weekly). ScaNavi's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ScaNavi sells 1 in-app purchase, starting at $4.99 per month. FermentFlow asks for nothing beyond the download.

FermentFlow ships an update every 3 days, ScaNavi weekly. The most recent releases landed on October 3, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | FermentFlow | ScaNavi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Size | 203 MB | 61 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Kyle Taborski](https://appshunter.io/developer/1788807316) | [Synapse Arrows PTE. LTD.](https://appshunter.io/developer/1896477159) |

## What reviewers say

### FermentFlow

[App page](https://appshunter.io/ios/app/fermentflow/id6740185559)

**Features:** macOS Compatibility

**In-app purchases:** none


### ScaNavi

[App page](https://appshunter.io/ios/app/scanavi-sake-label-scanner/id6767459125)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Navi+ Monthly | $4.99 | per month |


## Frequently asked questions

### Is FermentFlow free?

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

### Is ScaNavi free?

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

### Do FermentFlow or ScaNavi have ads?

Neither FermentFlow nor ScaNavi shows ads.

### Which is updated more often, FermentFlow or ScaNavi?

FermentFlow ships an update every 3 days, and ScaNavi weekly. Most recently, FermentFlow was updated on October 3, 2026 and ScaNavi 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.*