# GPS Fenix Sky vs CallApp

The clearest difference is in-app purchases: GPS Fenix Sky at none against CallApp's 13. GPS Fenix Sky also leads on ads (none vs shown) and iOS requirement (11.0 vs 18.2). CallApp's advantage is update cadence (fortnightly vs every 4 months). On price and device support there is nothing between them.

Both are free to download. CallApp sells 8 in-app purchases, starting at $6.99 per month. GPS Fenix Sky asks for nothing beyond the download.

GPS Fenix Sky ships an update every 4 months, CallApp fortnightly. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | GPS Fenix Sky | CallApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (791 ratings)](https://appshunter.io/ios/app/callapp/id6739289261/reviews)** |
| Number of ratings | — | **791** |
| Positive reviews | — | 52.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 53 MB | 251 MB |
| Requires iOS | **11.0** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andres Mauricio Usuga Rodriguez](https://appshunter.io/developer/1579321941) | [CallApp](https://appshunter.io/developer/1784700170) |

## What reviewers say

### GPS Fenix Sky

[App page](https://appshunter.io/ios/app/gps-fenix-sky/id1664599042)

**Features:** macOS Compatibility

**In-app purchases:** none


### CallApp

[App page](https://appshunter.io/ios/app/callapp/id6739289261)

Identify unknown callers and block unwanted calls with an advanced caller ID. Access a global database of billions of numbers to know who is calling before you answer. Protect your privacy and security with this powerful call management tool.

**Highlights:** Advanced caller ID, Identify unknown numbers, Block spam calls, Global number database, Privacy and security focused, Unwanted call protection

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $6.99 | per month |
| Monthly | $9.99 | per month |
| Monthly | $9.99 | per month |
| Yearly | $29.99 | per year |
| Yearly | $29.99 | per year |
| Yearly | $39.99 | per year |
| Yearly | $39.99 | per year |
| Yearly | $59.99 | per year |


## Frequently asked questions

### Is GPS Fenix Sky free?

GPS Fenix Sky is free to download, with no in-app purchases.

### Is CallApp free?

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

### Do GPS Fenix Sky or CallApp have ads?

CallApp shows ads; GPS Fenix Sky does not.

### Which is updated more often, GPS Fenix Sky or CallApp?

GPS Fenix Sky ships an update every 4 months, and CallApp fortnightly. Most recently, GPS Fenix Sky was updated on October 7, 2026 and CallApp on October 17, 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.*