# BugPlanetEra vs Resistors Parallel

The clearest difference is price: BugPlanetEra at Free against Resistors Parallel's $1.99. BugPlanetEra also leads on update cadence (every 5 months vs every 59 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BugPlanetEra is free to download; Resistors Parallel costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BugPlanetEra ships an update every 5 months, Resistors Parallel every 59 months. The most recent releases landed on May 16, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | BugPlanetEra | Resistors Parallel |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 59 months |
| Size | 2 MB | 259 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Khan Kao](https://appshunter.io/developer/1119938868) | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) |

## What reviewers say

### BugPlanetEra

[App page](https://appshunter.io/ios/app/bugplanetera/id1492067649)

**Features:** macOS Compatibility

**In-app purchases:** none


### Resistors Parallel

[App page](https://appshunter.io/ios/app/resistors-parallel-edutech-era/id1552663387)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BugPlanetEra free?

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

### Is Resistors Parallel free?

Resistors Parallel costs $1.99, with no in-app purchases.

### Do BugPlanetEra or Resistors Parallel have ads?

Neither BugPlanetEra nor Resistors Parallel shows ads.

### Which is updated more often, BugPlanetEra or Resistors Parallel?

BugPlanetEra ships an update every 5 months, and Resistors Parallel every 59 months. Most recently, BugPlanetEra was updated on May 16, 2026 and Resistors Parallel on May 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.*