# Resistor Tools Pro vs Pareva

The clearest difference is price: Pareva at Free against Resistor Tools Pro's $0.99. Pareva also leads on update cadence (every 2 weeks vs every 2 months). Resistor Tools Pro's advantage is iOS requirement (12.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Pareva is free to download; Resistor Tools Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Resistor Tools Pro ships an update every 2 months, Pareva every 2 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Resistor Tools Pro | Pareva |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/resistor-tools-pro/id825620924/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 4 MB | 7 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Pareva](https://appshunter.io/developer/1895111283) |

## What reviewers say

### Resistor Tools Pro

[App page](https://appshunter.io/ios/app/resistor-tools-pro/id825620924)

This utility app offers a suite of tools for calculating and finding resistor combinations. It's designed for electronics enthusiasts and professionals needing to determine series, parallel, and voltage divider configurations. Save and share your calculations easily.

**Highlights:** Calculate series/parallel resistance, Find resistor combinations for desired resistance, Voltage divider ratio and value calculation, Inverting amplifier gain calculation, Save combinations to CSV, Share via AirDrop, Upload CSV to iCloud Drive

**In-app purchases:** none


### Pareva

[App page](https://appshunter.io/ios/app/pareva/id6762989334)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Resistor Tools Pro free?

Resistor Tools Pro costs $0.99, with no in-app purchases.

### Is Pareva free?

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

### Do Resistor Tools Pro or Pareva have ads?

Neither Resistor Tools Pro nor Pareva shows ads.

### Which is updated more often, Resistor Tools Pro or Pareva?

Resistor Tools Pro ships an update every 2 months, and Pareva every 2 weeks. Most recently, Resistor Tools Pro was updated on October 10, 2026 and Pareva on October 15, 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.*