# Siscout vs CallApp

The clearest difference is in-app purchases: Siscout at none against CallApp's 13. Siscout also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.2). On price, update cadence and ads there is nothing between them.

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

Siscout ships an update every 8 days, CallApp fortnightly. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Siscout | 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 | Yes | Yes |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 84 MB | 251 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Willian Espinosa](https://appshunter.io/developer/1364674427) | [CallApp](https://appshunter.io/developer/1784700170) |

## What reviewers say

### Siscout

[App page](https://appshunter.io/ios/app/siscout/id1496855427)

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

**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 Siscout free?

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

### Is CallApp free?

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

### Do Siscout or CallApp have ads?

Both Siscout and CallApp show ads.

### Which is updated more often, Siscout or CallApp?

Siscout ships an update every 8 days, and CallApp fortnightly. Most recently, Siscout was updated on October 3, 2026 and CallApp on October 13, 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.*