# Hydro Ottawa vs CellMaster

The clearest difference is in-app purchases: Hydro Ottawa at none against CellMaster's 1. Hydro Ottawa also leads on iOS requirement (15.1 vs 18.0). CellMaster's advantage is update cadence (fortnightly vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. CellMaster sells 1 one-off in-app purchase. Hydro Ottawa asks for nothing beyond the download.

Hydro Ottawa ships an update every 5 weeks, CellMaster fortnightly. The most recent releases landed on August 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Hydro Ottawa | CellMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cellmaster/id6749219558/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 94 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hydro Ottawa](https://appshunter.io/developer/1326192998) | [yoni gold](https://appshunter.io/developer/1829345218) |

## What reviewers say

### Hydro Ottawa

[App page](https://appshunter.io/ios/app/hydro-ottawa/id1673243513)

Manage your electricity account 24/7 with this utility app. Access services like outage reporting, account management, and important notifications. Designed for both residential and commercial customers, it offers tools to stay informed and in control of your power services.

**Highlights:** 24/7 account management, Report power outages, Account opening/closing, Alerts and notifications, Service updates

**Features:** Vision Pro support

**In-app purchases:** none


### CellMaster

[App page](https://appshunter.io/ios/app/cellmaster/id6749219558)

Explore detailed cell tower information with interactive maps and carrier search. Save favorite towers and view dynamic frequency data, even offline. Understand your mobile network coverage with intuitive tools.

**Highlights:** Interactive cell tower maps, Carrier and frequency band search, Save and organize favorite towers, Dynamic frequency and antenna views, Offline data access

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Hydro Ottawa free?

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

### Is CellMaster free?

CellMaster is free to download, with in-app purchases available.

### Do Hydro Ottawa or CellMaster have ads?

Neither Hydro Ottawa nor CellMaster shows ads.

### Which is updated more often, Hydro Ottawa or CellMaster?

Hydro Ottawa ships an update every 5 weeks, and CellMaster fortnightly. Most recently, Hydro Ottawa was updated on August 14, 2026 and CellMaster on September 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.*