# TBM Performance vs NAC

The clearest difference is in-app purchases: TBM Performance at none against NAC's 1. NAC's advantage is ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. NAC sells 1 in-app purchase, starting at $199.00 per year. TBM Performance asks for nothing beyond the download.

TBM Performance ships an update every 2 months, NAC fortnightly. The most recent releases landed on July 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | TBM Performance | NAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (14 ratings)](https://appshunter.io/ios/app/tbm-performance/id641403446/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 20 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [Neubert Aero Corp](https://appshunter.io/developer/1785752651) |

## What reviewers say

### TBM Performance

[App page](https://appshunter.io/ios/app/tbm-performance/id641403446)

This app calculates essential flight performance data for Daher TBM aircraft, covering takeoff, landing, climb, cruise, and emergency procedures. It includes tools like a glide distance calculator, circuit breaker finder, and risk analysis.

**Highlights:** Flight performance calculations, Takeoff and landing data, Climb and cruise performance, Emergency procedures, Glide distance calculator, Circuit breaker finder, Risk analysis tool

**Features:** macOS Compatibility

**In-app purchases:** none


### NAC

[App page](https://appshunter.io/ios/app/nac-dfd-decelerometer/id6478895830)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| U.S. Region | $199.00 | per year |


## Frequently asked questions

### Is TBM Performance free?

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

### Is NAC free?

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

### Do TBM Performance or NAC have ads?

TBM Performance shows ads; NAC does not.

### Which is updated more often, TBM Performance or NAC?

TBM Performance ships an update every 2 months, and NAC fortnightly. Most recently, TBM Performance was updated on July 23, 2026 and NAC on September 14, 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.*