# NaviFlow vs Stem Global Service

The clearest difference is in-app purchases: Stem Global Service at none against NaviFlow's 2. Stem Global Service also leads on update cadence (every 4 weeks vs every 3 months). NaviFlow's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price and ads there is nothing between them.

Both are free to download. NaviFlow sells 2 in-app purchases, starting at $13.99 per month. Stem Global Service asks for nothing beyond the download.

NaviFlow ships an update every 3 months, Stem Global Service every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | NaviFlow | Stem Global Service |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Subscription | — |
| Size | 14 MB | 24 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Emiliano Mazziotta](https://appshunter.io/developer/1598950295) | [Stem S.r.l.](https://appshunter.io/developer/1577070000) |

## What reviewers say

### NaviFlow

[App page](https://appshunter.io/ios/app/naviflow/id1087574201)

This app monitors boat fuel consumption, distance traveled, speed, and geographic coordinates. It requires a connection to the NaviFlow control unit to function fully. Users can save their routes and associated data.

**Highlights:** Instantaneous fuel consumption (L/h), Fuel consumption per distance (L/m), Distance traveled (miles), Total fuel consumed (liters), Speed (Knots and Km/h), Geographic coordinates, Save traveled routes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abbonamento Mensile | $13.99 | per month |
| Abbonamento Annuale | $36.99 | per year |


### Stem Global Service

[App page](https://appshunter.io/ios/app/stem-global-service/id6502402821)

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

**In-app purchases:** none


## Frequently asked questions

### Is NaviFlow free?

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

### Is Stem Global Service free?

Stem Global Service is free to download, with no in-app purchases.

### Do NaviFlow or Stem Global Service have ads?

Neither NaviFlow nor Stem Global Service shows ads.

### Which is updated more often, NaviFlow or Stem Global Service?

NaviFlow ships an update every 3 months, and Stem Global Service every 4 weeks. Most recently, NaviFlow was updated on October 24, 2026 and Stem Global Service on October 24, 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.*