# PrimeVolt vs aiwan 3+3 Postal Code

The clearest difference is ads: PrimeVolt at none against aiwan 3+3 Postal Code's shown. PrimeVolt also leads on update cadence (every 6 weeks vs every 37 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PrimeVolt ships an update every 6 weeks, aiwan 3+3 Postal Code every 37 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PrimeVolt | aiwan 3+3 Postal Code |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 37 months |
| Size | 12 MB | 28 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [AsianPowerDevicesInc](https://appshunter.io/developer/1214788661) | [Chengchung Chiu](https://appshunter.io/developer/1359094944) |

## What reviewers say

### PrimeVolt

[App page](https://appshunter.io/ios/app/primevolt/id1291653570)

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

**In-app purchases:** none


### aiwan 3+3 Postal Code

[App page](https://appshunter.io/ios/app/aiwan-3-plus-3-postal-code/id1524433635)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrimeVolt free?

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

### Is aiwan 3+3 Postal Code free?

aiwan 3+3 Postal Code is free to download, with no in-app purchases.

### Do PrimeVolt or aiwan 3+3 Postal Code have ads?

aiwan 3+3 Postal Code shows ads; PrimeVolt does not.

### Which is updated more often, PrimeVolt or aiwan 3+3 Postal Code?

PrimeVolt ships an update every 6 weeks, and aiwan 3+3 Postal Code every 37 months. Most recently, PrimeVolt was updated on October 6, 2026 and aiwan 3+3 Postal Code on October 2, 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.*