# Tire Pressure Correction vs TPCalc

The clearest difference is in-app purchases: Tire Pressure Correction at none against TPCalc's 4. Tire Pressure Correction also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price and device support there is nothing between them.

Both are free to download. TPCalc sells 4 one-off in-app purchases. Tire Pressure Correction asks for nothing beyond the download.

Tire Pressure Correction ships an update every 2 months, TPCalc every 5 months. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Tire Pressure Correction | TPCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/tire-pressure-correction/id547075173/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 5 MB | 16 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Martin Bateson](https://appshunter.io/developer/547075176) | [Ahmet Erhan Ersan](https://appshunter.io/developer/1724558725) |

## What reviewers say

### Tire Pressure Correction

[App page](https://appshunter.io/ios/app/tire-pressure-correction/id547075173)

This utility guides users on how to adjust tire pressure accurately when tires are not at a cold state, accounting for changing weather conditions. It provides a procedure to ensure correct tire pressure in real-world driving scenarios.

**Highlights:** Adjust tire pressure for non-cold states, Account for changing weather conditions, Real-world driving guidelines, Seasonal temperature adjustments

**Features:** macOS Compatibility

**In-app purchases:** none


### TPCalc

[App page](https://appshunter.io/ios/app/tpcalc/id6751998119)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.49 | one-time |
| Small support | $2.00 | one-time |
| Medium support | $5.00 | one-time |
| Large support | $10.00 | one-time |


## Frequently asked questions

### Is Tire Pressure Correction free?

Tire Pressure Correction is free to download, with no in-app purchases.

### Is TPCalc free?

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

### Do Tire Pressure Correction or TPCalc have ads?

TPCalc shows ads; Tire Pressure Correction does not.

### Which is updated more often, Tire Pressure Correction or TPCalc?

Tire Pressure Correction ships an update every 2 months, and TPCalc every 5 months. Most recently, Tire Pressure Correction was updated on October 23, 2026 and TPCalc on October 28, 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.*