# Ohmulator vs Barometer ∞ Pressure Altitude

The clearest difference is price: Barometer ∞ Pressure Altitude at Free against Ohmulator's $0.99. Barometer ∞ Pressure Altitude also leads on rating (5.0 vs 4.7). Ohmulator's advantage is ads (none vs shown) and ratings volume (79 vs 1). On in-app purchases there is nothing between them.

Barometer ∞ Pressure Altitude is free to download; Ohmulator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Barometer ∞ Pressure Altitude holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Ohmulator has 79 ratings behind it against 1, so its average is the more settled of the two.

Ohmulator ships an update every 2 months, Barometer ∞ Pressure Altitude every 10 months. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Ohmulator | Barometer ∞ Pressure Altitude |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.7 (79 ratings)](https://appshunter.io/ios/app/ohmulator/id398901336/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/barometer-pressure-altitude/id6740811403/reviews)** |
| Number of ratings | **79** | 1 |
| Positive reviews | 81.1% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | **Free** | Ad-supported |
| Size | 5 MB | 16 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [Chen-Yu Wei](https://appshunter.io/developer/432767536) |

## What reviewers say

### Ohmulator

[App page](https://appshunter.io/ios/app/ohmulator/id398901336)

This electric circuit calculator simplifies Ohm's Law calculations. It allows users to input two known variables (current, resistance, voltage, or power) and automatically computes the unknown values. The app also supports on-the-fly unit adjustments, eliminating the need for manual conversions.

**Highlights:** Ohm's Law calculations, Calculate unknown variables, Adjustable unit types, Total resistance calculator, Supports Voltage, Current, Resistance, Power

**Features:** Vision Pro support

**In-app purchases:** none


### Barometer ∞ Pressure Altitude

[App page](https://appshunter.io/ios/app/barometer-pressure-altitude/id6740811403)

Access your device's built-in barometer for real-time atmospheric pressure and altitude readings. Offers multiple units and works offline without requiring signup or subscriptions.

**Highlights:** Live barometric pressure readings, Current altitude display, Multiple pressure units (atm, hPa, kPa, Bar), Offline functionality, Native iOS design, Minimalist interface

**In-app purchases:** none


## Frequently asked questions

### Is Ohmulator free?

Ohmulator costs $0.99, with no in-app purchases.

### Is Barometer ∞ Pressure Altitude free?

Barometer ∞ Pressure Altitude is free to download, with no in-app purchases.

### Which has better reviews, Ohmulator or Barometer ∞ Pressure Altitude?

Barometer ∞ Pressure Altitude is rated higher. Ohmulator averages 4.7 out of 5 from 79 ratings, while Barometer ∞ Pressure Altitude averages 5.0 from 1 ratings.

### Do Ohmulator or Barometer ∞ Pressure Altitude have ads?

Barometer ∞ Pressure Altitude shows ads; Ohmulator does not.

### Which is updated more often, Ohmulator or Barometer ∞ Pressure Altitude?

Ohmulator ships an update every 2 months, and Barometer ∞ Pressure Altitude every 10 months. Most recently, Ohmulator was updated on October 9, 2026 and Barometer ∞ Pressure Altitude on October 11, 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.*