# Octopus Watch vs Eventogy Onsite

The clearest difference is price: Eventogy Onsite at Free against Octopus Watch's $1.99. Eventogy Onsite also leads on in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Eventogy Onsite is free to download; Octopus Watch costs $1.99 up front. Octopus Watch sells 2 in-app purchases, starting at $1.99 per month. Eventogy Onsite asks for nothing beyond the download.

Octopus Watch ships an update every 3 weeks, Eventogy Onsite every 2 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Octopus Watch | Eventogy Onsite |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/octopus-watch/id1490260614/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 64.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 19 MB | 33 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kim Bauters](https://appshunter.io/developer/1451850103) | [Eventogy Ltd](https://appshunter.io/developer/527197691) |

## What reviewers say

### Octopus Watch

[App page](https://appshunter.io/ios/app/octopus-watch/id1490260614)

This app helps Octopus Energy customers in the UK manage their smart tariffs and save on electricity bills. It provides real-time rate information, upcoming prices, and personalized alerts for optimal energy usage.

**Highlights:** View current and upcoming electricity rates, Get cheapest times for appliances/EV charging, Home screen widget for prices, Alerts for next-day Agile rates, Historic day-by-day usage, Export cleaned data to CSV, 48h Agile rate predictions (subscription)

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $1.99 | per month |
| 1 Year Subscription | $11.99 | per year |


### Eventogy Onsite

[App page](https://appshunter.io/ios/app/eventogy-onsite/id6742447295)

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

**In-app purchases:** none


## Frequently asked questions

### Is Octopus Watch free?

Octopus Watch costs $1.99, and also offers in-app purchases.

### Is Eventogy Onsite free?

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

### Do Octopus Watch or Eventogy Onsite have ads?

Neither Octopus Watch nor Eventogy Onsite shows ads.

### Which is updated more often, Octopus Watch or Eventogy Onsite?

Octopus Watch ships an update every 3 weeks, and Eventogy Onsite every 2 weeks. Most recently, Octopus Watch was updated on November 7, 2026 and Eventogy Onsite on November 8, 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.*