# Voltage Divider vs Proximity

The clearest difference is rating: Proximity at 5.0 against Voltage Divider's 2.7. Proximity also leads on update cadence (every 14 months vs every 48 months). Voltage Divider's advantage is review sentiment (56% vs 25%) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Voltage Divider costs $1.99 and Proximity $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Proximity holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews complicate that: 56% of Voltage Divider's written reviews are positive against 25% of Proximity's, so the app with the better star average is not the one people write more warmly about.

Voltage Divider ships an update every 48 months, Proximity every 14 months. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Voltage Divider | Proximity |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/voltage-divider/id372094728/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/proximity-access-card-calc/id774601885/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | **55.6% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 14 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ditty Labs, LLC](https://appshunter.io/developer/420813089) | [Farren Domenici](https://appshunter.io/developer/583666476) |

## What reviewers say

### Voltage Divider

[App page](https://appshunter.io/ios/app/voltage-divider/id372094728)

This engineering utility calculates unknown values in a voltage divider circuit. It can solve for voltages or resistor values, displaying ideal and actual resistor options. It also shows current, power, and voltage tolerance.

**Highlights:** Solves for Vin, Vout, R1, or R2, Resistor picker with actual values, Displays ideal resistor value, Calculates voltage tolerance, Shows current and power consumption

**Features:** macOS Compatibility

**In-app purchases:** none


### Proximity

[App page](https://appshunter.io/ios/app/proximity-access-card-calc/id774601885)

This utility helps determine the correct number and facility code for access cards or fobs. It converts binary or hexadecimal card values into usable data, and can also reverse the process by generating binary values from facility codes and card numbers.

**Highlights:** Binary to number conversion, Hexadecimal to number conversion, Number to binary generation, Supports multiple bit lengths, Supports numerous card formats, Reverse calculation functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Voltage Divider free?

Voltage Divider costs $1.99, with no in-app purchases.

### Is Proximity free?

Proximity costs $1.99, with no in-app purchases.

### Which has better reviews, Voltage Divider or Proximity?

Proximity is rated higher. Voltage Divider averages 2.7 out of 5 from 3 ratings, while Proximity averages 5.0 from 1 ratings.

### Do Voltage Divider or Proximity have ads?

Neither Voltage Divider nor Proximity shows ads.

### Which is updated more often, Voltage Divider or Proximity?

Voltage Divider ships an update every 48 months, and Proximity every 14 months. Most recently, Voltage Divider was updated on October 23, 2026 and Proximity on October 17, 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.*