CellMaster User Reviews

Customer Experience

Positive experience58.3% of reviews
Neutral16.7% of reviews
Negative experience25.0% of reviews

~ Based on 12 written reviews from the US App Store.

Is CellMaster Safe?

Not enough ratings yet to assess CellMaster.

Is CellMaster Legit?

CellMaster appears legitimate, with a few gaps. AppsHunter Legitimacy Score for CellMaster is 65/100.

Based on 65 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Best Canadian Cell Map

This app provides the bands, azimuths, carriers, tower types, locations, and so much more.

Also! Regular feature updates, and updates on cell tower additions and frequency upgrades to sites via the Gov. of Canada data set.

Wondering why you get the Canadian cell coverage you do? Look no further than this app. Chip in a toonie too! You’ll be glad you did.
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Crashing

the app keeps crashing after trying to update the database

Missing filter

Great app with lots of functionality and useful features. One glaring omission however, is the lack of a filter to show only newly added cell sites. It would be very helpful to have an option to display just new cell sites, especially for users tracking recent developments. Hopefully this is something the developers will consider adding in a future update.
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The absolute best cell tower app for Canada!!!

Not only is this app super simple to use by following the Apple human interface guidelines, it takes such a complicated and detailed dataset and makes it navigable and accessible. I have never seen an app this good for Canadian cell tower information! Well done!

Great growing app!

The app is great with all the information I would like to know about Canadian carriers. The developer is always open to ensuring the app is working properly!

Great App, but could be improved a little bit

Awesome app! I love the ability to see the cell sites on the map, and which service providers are there, but however I would definitely like to see an option to find out exactly which tower a phone is connected to, because sometimes in weak signal areas, it would be helpful to see which tower your phone is connecting to make calls! You could figure out a way to do this by adding a tower info lookup feature that uses the phone’s GPS and tower info to find the exact location of that tower, and give the GPS directions to that tower’s location
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App keeps crashing on startup

Running iOS 26.1 and a iPhone 17 and this app worked fine until the new tower database update that happened on December 2nd. It will now crash on startup, and if I delete the app and reinstall the app and database it will continue to crash when loading the towers.

Response from developer

This has been fixed in version 1.9.1 Sorry for the inconvenience

Sound idea, alas…

Hope the dev can figure out why the app keys crashing after barely loading up the towers. Looks promising

Response from developer

Hi! I’m currently working on a major backend update for the app that should solve the crashing! Stay Tuned!

Absolutely the best

iPhone 16 Pro. Zero crashing issues. This is by far the most detailed and best front end to ISED’s database. Bravo to the dev for putting it together. Some UI elements could use a bit of polish, but it’s simply the best out there. If you’re a network nerd, look no further.

EXCELLENT APP

this app is amazing it takes it looks awesome and runs beautifully on my iphone 13 pro max. The dev is extremely responsive and has fixed three issues i’ve reported. the negative reviews stating the app sucks are just simply not true. Give this app a try for yourself it’s worth it.

Keep crashing

iPhone 12 iOS 26, the concept looks good but TowerLocator runs better.

App crashing

App still crashes at startup on iPhone 13 running iOS 26.

Response from developer

Hi! Thanks for your feedback. I’ve been working on fixing this issue. It’s difficult since I do not own an iPhone 13 and cannot replicate the issue at home, but I’m working tirelessly to get it fixed! :)