# Bars vs Tachwire

The clearest difference is in-app purchases: Tachwire at none against Bars's 4. Tachwire also leads on update cadence (every 3 days vs monthly) and iOS requirement (18.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Bars sells 4 in-app purchases, starting at $1.99 per month. Tachwire asks for nothing beyond the download.

Bars ships an update monthly, Tachwire every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Bars | Tachwire |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tachwire/id6813896115/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | — | Free |
| Size | 31 MB | 167 MB |
| Requires iOS | 26.0 | **18.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Noah General Group Inc.](https://appshunter.io/developer/6788244682) | [Maksim Pogozhii](https://appshunter.io/developer/1877182235) |

## What reviewers say

### Bars

[App page](https://appshunter.io/ios/app/bars-ai-usage-and-data-tracker/id6799355833)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bars Pro Monthly | $1.99 | per month |
| Bars Pro Yearly | $9.99 | per year |
| Bars Pro | $4.99 | one-time |
| Bars Pro | $14.99 | one-time |


### Tachwire

[App page](https://appshunter.io/ios/app/tachwire/id6813896115)

This app displays real-time car data like oil and gearbox temperatures, boost, and gear on your phone's screen. It provides spoken warnings for critical conditions and offers detailed insights for BMWs and other supported vehicles. It also includes road camera alerts and drive recording features.

**Highlights:** Live OBD data display, Customizable tiles on car screen, Spoken warnings for critical conditions, Detailed BMW diagnostics, Road camera alerts, Drive recording and analysis, Track lap timing

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

**In-app purchases:** none


## Frequently asked questions

### Is Bars free?

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

### Is Tachwire free?

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

### Do Bars or Tachwire have ads?

Neither Bars nor Tachwire shows ads.

### Which is updated more often, Bars or Tachwire?

Bars ships an update monthly, and Tachwire every 3 days. Most recently, Bars was updated on October 31, 2026 and Tachwire on October 31, 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.*