# alertTO vs CellMaster

alertTO and CellMaster are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. alertTO sells 1 in-app purchase, starting at $0.99 per month and CellMaster sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | alertTO | CellMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cellmaster/id6749219558/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 58.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 213 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | — | **iPhone** |
| Age rating | 17+ | 4+ |
| Developer | [Toby moktar](https://appshunter.io/developer/1531576098) | [yoni gold](https://appshunter.io/developer/1829345218) |

## What reviewers say

### alertTO

[App page](https://appshunter.io/ios/app/alertto/id6478510778)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| alertTO+ | $0.99 | per month |


### 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 alertTO free?

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

### Is CellMaster free?

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

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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.*