# Propeller vs Zervio

The clearest difference is update cadence: Zervio at every 2 days against Propeller's fortnightly. Propeller's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.1). On price, ads and in-app purchases there is nothing between them.

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

Propeller ships an update fortnightly, Zervio every 2 days. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Propeller | Zervio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free | — |
| Size | 83 MB | 101 MB |
| Requires iOS | **12.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Propeller Powered Ltd](https://appshunter.io/developer/694591869) | [Zervio limited](https://appshunter.io/developer/1714097348) |

## What reviewers say

### Propeller

[App page](https://appshunter.io/ios/app/propeller/id694591766)

This app streamlines field service operations for businesses with mobile engineers. It allows for electronic completion of all paperwork, job management, and real-time data syncing with an online portal. Secure cloud storage ensures compliance and eliminates lost documents.

**Highlights:** Real-time job information access, Electronic document creation, Customer database management, Job scheduling and diary management, Access to manufacturer literature, Photo documentation of work, Industry-standard certification generation

**Features:** Vision Pro support

**In-app purchases:** none


### Zervio

[App page](https://appshunter.io/ios/app/zervio/id6470719834)

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

**In-app purchases:** none


## Frequently asked questions

### Is Propeller free?

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

### Is Zervio free?

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

### Do Propeller or Zervio have ads?

Neither Propeller nor Zervio shows ads.

### Which is updated more often, Propeller or Zervio?

Propeller ships an update fortnightly, and Zervio every 2 days. Most recently, Propeller was updated on September 27, 2026 and Zervio 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.*