# vCaller vs PrefixBlock

The clearest difference is update cadence: PrefixBlock at every 3 days against vCaller's monthly. vCaller's advantage is iOS requirement (12.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. vCaller sells 3 in-app purchases, starting at $1.49 per month and PrefixBlock sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

vCaller ships an update monthly, PrefixBlock every 3 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | vCaller | PrefixBlock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/vcaller/id1531648039/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 36.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 4 MB |
| Requires iOS | **12.1** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [INTERNATIONAL INMOTECK TECHNOLOGY JOINT STOCK COMPANY](https://appshunter.io/developer/1697525295) | [Phung Doanh](https://appshunter.io/developer/965062916) |

## What reviewers say

### vCaller

[App page](https://appshunter.io/ios/app/vcaller/id1531648039)

This app uses AI and community reports to identify and block unwanted calls like spam, ads, and scams. It also displays caller ID information so you can decide whether to answer before picking up.

**Highlights:** AI-powered spam call detection, Community-based reporting, Caller ID display, Automatic call blocking, Blocks spam, ads, and scams

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $1.49 | per month |
| 6 months | $6.29 | per 6 months |
| 1 year | $10.49 | per year |


### PrefixBlock

[App page](https://appshunter.io/ios/app/prefixblock-spam-call-filter/id6800204952)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chặn đầu số pro tháng | $0.99 | per month |
| Chặn đầu số pro năm | $4.99 | per year |
| Chặn đầu số trọn đời | $9.99 | one-time |


## Frequently asked questions

### Is vCaller free?

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

### Is PrefixBlock free?

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

### Do vCaller or PrefixBlock have ads?

Neither vCaller nor PrefixBlock shows ads.

### Which is updated more often, vCaller or PrefixBlock?

vCaller ships an update monthly, and PrefixBlock every 3 days. Most recently, vCaller was updated on October 21, 2026 and PrefixBlock on October 8, 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.*