# Callably vs Spam Zero

The clearest difference is rating: Spam Zero at 3.1 against Callably's 2.8. Spam Zero also leads on ratings volume (18 vs 5). Callably's advantage is iOS requirement (15.0 vs 17.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spam Zero holds the better App Store score, 3.1 against 2.8. Both are backed by a comparable volume of ratings — 5 and 18 respectively.

Callably ships an update every 2 days, Spam Zero every 3 days. The most recent releases landed on October 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Callably | Spam Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (5 ratings)](https://appshunter.io/ios/app/callably/id1586339195/reviews) | **[3.1 (18 ratings)](https://appshunter.io/ios/app/spam-zero-spam-call-blocker/id6737818516/reviews)** |
| Number of ratings | 5 | **18** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free | Free |
| Size | 37 MB | 12 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CAI TI LTD](https://appshunter.io/developer/1708021855) | [Kavun, LLC](https://appshunter.io/developer/1503851293) |

## What reviewers say

### Callably

[App page](https://appshunter.io/ios/app/callably/id1586339195)

Identify unknown callers and block unwanted calls with automatic caller ID. This app helps you decide whether to answer incoming calls and allows you to block spam or scam numbers based on your criteria. It provides caller information and updates its database regularly.

**Highlights:** Automatic caller ID, Spam and scam call blocking, Identify unknown callers, Block calls by custom criteria, Check missed call numbers, Regularly updated number database

**In-app purchases:** none


### Spam Zero

[App page](https://appshunter.io/ios/app/spam-zero-spam-call-blocker/id6737818516)

Block unwanted spam calls with a vast database of known spammers. This privacy-focused app keeps all blocking data on your device, ensuring your calls and contacts remain private. Enjoy smart protection that distinguishes spam from important calls with an easy setup.

**Highlights:** Block 1M+ known spam numbers, Complete privacy, no data collection, Device-only call blocking, Smart protection for important calls, Automatic spam database updates, Real-time call blocking, Easy setup in minutes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Callably free?

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

### Is Spam Zero free?

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

### Which has better reviews, Callably or Spam Zero?

Spam Zero is rated higher. Callably averages 2.8 out of 5 from 5 ratings, while Spam Zero averages 3.1 from 18 ratings.

### Do Callably or Spam Zero have ads?

Neither Callably nor Spam Zero shows ads.

### Which is updated more often, Callably or Spam Zero?

Callably ships an update every 2 days, and Spam Zero every 3 days. Most recently, Callably was updated on October 7, 2026 and Spam Zero on October 27, 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.*