# Operations Manual vs Viking Power Technologies

The clearest difference is update cadence: Viking Power Technologies at every 3 weeks against Operations Manual's every 21 months. Viking Power Technologies also leads on iOS requirement (13.4 vs 16.1.1). 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.

Operations Manual ships an update every 21 months, Viking Power Technologies every 3 weeks. The most recent releases landed on October 26, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Operations Manual | Viking Power Technologies |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/viking-power-technologies/id1604710085/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 50 MB | 23 MB |
| Requires iOS | 16.1.1 | **13.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [405 Technology Solutions LLC](https://appshunter.io/developer/1203345619) | [Midnight Marketing LLC](https://appshunter.io/developer/1604710237) |

## What reviewers say

### Operations Manual

[App page](https://appshunter.io/ios/app/operations-manual/id1209668338)

**Features:** macOS Compatibility

**In-app purchases:** none


### Viking Power Technologies

[App page](https://appshunter.io/ios/app/viking-power-technologies/id1604710085)

Easily compare power section spec sheets to find the right solution for your project. This app removes guesswork by providing real information to empower your decisions.

**Highlights:** Compare spec sheets, Find power section solutions, Industry-leading technology, Top quality service, In-house machining options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Operations Manual free?

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

### Is Viking Power Technologies free?

Viking Power Technologies is free to download, with no in-app purchases.

### Do Operations Manual or Viking Power Technologies have ads?

Neither Operations Manual nor Viking Power Technologies shows ads.

### Which is updated more often, Operations Manual or Viking Power Technologies?

Operations Manual ships an update every 21 months, and Viking Power Technologies every 3 weeks. Most recently, Operations Manual was updated on October 26, 2026 and Viking Power Technologies on September 26, 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.*