# TBM Performance vs MachDB

The clearest difference is rating: TBM Performance at 5.0 against MachDB's 4.3. TBM Performance also leads on review sentiment (88% vs 67%). MachDB's advantage is update cadence (every 2 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

TBM Performance holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 14 and 6 respectively. Written reviews point the same way: 88% of TBM Performance's written reviews are positive against 67% of MachDB's.

TBM Performance ships an update every 2 months, MachDB every 2 weeks. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | TBM Performance | MachDB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (14 ratings)](https://appshunter.io/ios/app/tbm-performance/id641403446/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/machdb/id6757681004/reviews) |
| Number of ratings | **14** | 6 |
| Positive reviews | **87.5% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 24 MB | 18 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [MachDB LLC](https://appshunter.io/developer/1868240819) |

## 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 features a glide distance calculator, circuit breaker finder, and risk analysis tool for comprehensive flight planning.

**Highlights:** Flight performance calculations, Normal and emergency procedures, Glide distance calculator, Circuit breaker finder, Hold entry calculator, Risk analysis tool

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

**In-app purchases:** none


### MachDB

[App page](https://appshunter.io/ios/app/machdb/id6757681004)

Easily download and transfer aviation database updates to an SD card or USB key using your iPhone or iPad. Supports major avionics systems like Garmin, Avidyne, and Pro Line for quick field updates.

**Highlights:** Download and transfer aviation database updates, Supports SD card and USB key transfer, Compatible with Garmin, Avidyne, and Pro Line avionics, Fast updates over Wi-Fi or Cellular, No proprietary hardware required, Works with existing Jeppesen or Garmin accounts

**In-app purchases:** none


## Frequently asked questions

### Is TBM Performance free?

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

### Is MachDB free?

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

### Which has better reviews, TBM Performance or MachDB?

TBM Performance is rated higher. TBM Performance averages 5.0 out of 5 from 14 ratings, while MachDB averages 4.3 from 6 ratings.

### Do TBM Performance or MachDB have ads?

Neither TBM Performance nor MachDB shows ads.

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

TBM Performance ships an update every 2 months, and MachDB every 2 weeks. Most recently, TBM Performance was updated on November 11, 2026 and MachDB on November 9, 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.*