# VoltUp vs Opis Tech

The clearest difference is update cadence: VoltUp at every 2 months against Opis Tech's every 4 months. Opis Tech's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

VoltUp ships an update every 2 months, Opis Tech every 4 months. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | VoltUp | Opis Tech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 59 MB | 26 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ANTTECH BILISIM VE AKARYAKIT ANONIM SIRKETI](https://appshunter.io/developer/1610082958) | [Alba Bilgi Teknolojileri A.Ş.](https://appshunter.io/developer/1497319691) |

## What reviewers say

### VoltUp

[App page](https://appshunter.io/ios/app/voltup/id6740208091)

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

**In-app purchases:** none


### Opis Tech

[App page](https://appshunter.io/ios/app/opis-tech/id6760705368)

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

**In-app purchases:** none


## Frequently asked questions

### Is VoltUp free?

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

### Is Opis Tech free?

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

### Do VoltUp or Opis Tech have ads?

Neither VoltUp nor Opis Tech shows ads.

### Which is updated more often, VoltUp or Opis Tech?

VoltUp ships an update every 2 months, and Opis Tech every 4 months. Most recently, VoltUp was updated on September 22, 2026 and Opis Tech on September 7, 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.*