# Fogstar Drift vs OnSite

The clearest difference is update cadence: OnSite at every 3 days against Fogstar Drift's monthly. Fogstar Drift's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Fogstar Drift ships an update monthly, OnSite every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Fogstar Drift | OnSite |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free | — |
| Size | 26 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fogstar Drift](https://appshunter.io/developer/1642643716) | [Nathan Manley](https://appshunter.io/developer/1889638528) |

## What reviewers say

### Fogstar Drift

[App page](https://appshunter.io/ios/app/fogstar-drift/id1642643324)

Monitor your leisure battery's real-time status, including voltage, current, and cell health. Receive instant alerts for critical parameters and track historical data for optimal performance and safety.

**Highlights:** Real-time battery parameter display, Single cell voltage and alarm monitoring, Cell comparison and balancing data, Temperature and critical parameter warnings, Historical alarm records, Bluetooth connectivity

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

**In-app purchases:** none


### OnSite

[App page](https://appshunter.io/ios/app/onsite-trades/id6761440069)

**In-app purchases:** none


## Frequently asked questions

### Is Fogstar Drift free?

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

### Is OnSite free?

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

### Do Fogstar Drift or OnSite have ads?

Neither Fogstar Drift nor OnSite shows ads.

### Which is updated more often, Fogstar Drift or OnSite?

Fogstar Drift ships an update monthly, and OnSite every 3 days. Most recently, Fogstar Drift was updated on October 24, 2026 and OnSite 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.*