# TBM Performance vs GrowCalc

The clearest difference is in-app purchases: TBM Performance at none against GrowCalc's 2. TBM Performance also leads on ratings volume (14 vs 2) and iOS requirement (13.0 vs 15.1). GrowCalc's advantage is ads (none vs shown) and update cadence (every 9 days vs every 2 months). On price, rating and device support there is nothing between them.

Both are free to download. GrowCalc sells 2 in-app purchases, starting at $4.99 per month. TBM Performance asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for TBM Performance against 5.0 for GrowCalc. That said, the two scores are not equally well evidenced: TBM Performance has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 88% of TBM Performance's written reviews are positive against 100% of GrowCalc's.

TBM Performance ships an update every 2 months, GrowCalc every 9 days. The most recent releases landed on July 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | TBM Performance | GrowCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (14 ratings)](https://appshunter.io/ios/app/tbm-performance/id641403446/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/growcalc/id6786804897/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 20 MB | 53 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [REINALDO CAMACHO](https://appshunter.io/developer/6786804899) |

## 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


### GrowCalc

[App page](https://appshunter.io/ios/app/growcalc/id6786804897)

This app is a comprehensive lawn care toolkit that uses precision math and live climate data to help users grow healthier lawns. It offers tools for calculating fertilizer rates, logging applications, diagnosing issues with AI, and tracking weather patterns. Manage multiple lawn zones and access global pest pressure data.

**Highlights:** Precision NPK calculator, Smart application logging, AI photo diagnosis for weeds and diseases, AI lawn assistant for expert advice, Live weather and spray window forecasts, Growing Degree Days (GDD) tracking, Global pest and disease pressure monitoring

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GrowCalc Pro | $4.99 | per month |
| GrowCalc Pro | $49.99 | per year |


## Frequently asked questions

### Is TBM Performance free?

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

### Is GrowCalc free?

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

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

TBM Performance and GrowCalc are both rated 5.0 out of 5 on the App Store, from 14 and 2 ratings respectively.

### Do TBM Performance or GrowCalc have ads?

TBM Performance shows ads; GrowCalc does not.

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

TBM Performance ships an update every 2 months, and GrowCalc every 9 days. Most recently, TBM Performance was updated on July 23, 2026 and GrowCalc on September 18, 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.*