# Unit Convert Go vs VoltVault

Unit Convert Go and VoltVault are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Unit Convert Go ships an update every 2 weeks, VoltVault fortnightly. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Unit Convert Go | VoltVault |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [晓 郭](https://appshunter.io/developer/1895645928) | [朝霞 程](https://appshunter.io/developer/1889121684) |

## What reviewers say

### Unit Convert Go

[App page](https://appshunter.io/ios/app/unit-convert-go/id6772014993)

This utility app offers fast, offline unit conversions for everyday needs. It supports a wide range of units including length, weight, temperature, and currency, with live, two-way conversion as you type. Favorite conversions can be pinned for quick access, and all data is kept private on your device.

**Highlights:** Live, two-way conversion, Offline-friendly, Pin favorite conversions, Recent conversions saved, Latest currency rates, Light and dark mode

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

**In-app purchases:** none


### VoltVault

[App page](https://appshunter.io/ios/app/voltvault/id6772879860)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Convert Go free?

Unit Convert Go is free to download, with no in-app purchases.

### Is VoltVault free?

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

### Do Unit Convert Go or VoltVault have ads?

Neither Unit Convert Go nor VoltVault shows ads.

### Which is updated more often, Unit Convert Go or VoltVault?

Unit Convert Go ships an update every 2 weeks, and VoltVault fortnightly. Most recently, Unit Convert Go was updated on October 15, 2026 and VoltVault on October 10, 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.*