# Caller Book vs Number Book

The clearest difference is ads: Number Book at none against Caller Book's shown. Number Book also leads on ratings volume (48 vs 9). Caller Book's advantage is update cadence (every 9 days vs every 5 months). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Caller Book sells 9 in-app purchases, starting at $9.99 per 7 days and Number Book sells 5 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Caller Book against 4.4 for Number Book. That said, the two scores are not equally well evidenced: Number Book has 48 ratings behind it against 9, so its average is the more settled of the two.

Caller Book ships an update every 9 days, Number Book every 5 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Caller Book | Number Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (9 ratings)](https://appshunter.io/ios/app/caller-book/id1493125892/reviews) | **[4.4 (48 ratings)](https://appshunter.io/ios/app/number-book/id6475397443/reviews)** |
| Number of ratings | 9 | **48** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 101 MB | 46 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [J.M.J](https://appshunter.io/developer/1458704825) | [ByteSpeed](https://appshunter.io/developer/1724157365) |

## What reviewers say

### Caller Book

[App page](https://appshunter.io/ios/app/caller-book/id1493125892)

Discover local professionals and services instantly with AI-powered search and a tag-based directory. For professionals, it's a way to get discovered by clients. Features include global caller ID and business profiles.

**Highlights:** AI-powered search, Tag-based directory, Global caller ID, Business profiles, VIP access for unlimited searches, Reverse number search

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caller Book VIP weekly | $9.99 | per 7 days |
| Caller Book VIP monthly | $24.99 | per month |
| Caller Book ID 50 coins | $0.99 | one-time |
| Caller Book ID 250 coins | $3.99 | one-time |
| Caller Book Remove ads | $4.99 | one-time |
| Caller Book ID 750 coins | $9.99 | one-time |
| Caller Book ID 2000 coins | $19.99 | one-time |
| Caller Book ID 5000 coins | $39.99 | one-time |
| Caller Book ID 20,000 coins | $99.99 | one-time |


### Number Book

[App page](https://appshunter.io/ios/app/number-book/id6475397443)

Identify unknown callers, block spam, and manage your contacts with a privacy-focused address book. Access a vast database for reverse phone lookups and public record information to enhance communication security.

**Highlights:** Privacy contact management, Reverse phone number lookup, Identify spam and scam calls, Large phone number database, Caller information retrieval

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP User | $8.99 | per 7 days |
| Monthly VIP User | $19.99 | per month |
| Yearly VIP User | $39.99 | per year |
| Yearly 3DaysTrail VIP User | $39.99 | per year |
| Lifetime VIP User | $45.99 | one-time |


## Frequently asked questions

### Is Caller Book free?

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

### Is Number Book free?

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

### Which has better reviews, Caller Book or Number Book?

Number Book is rated higher. Caller Book averages 4.3 out of 5 from 9 ratings, while Number Book averages 4.4 from 48 ratings.

### Do Caller Book or Number Book have ads?

Caller Book shows ads; Number Book does not.

### Which is updated more often, Caller Book or Number Book?

Caller Book ships an update every 9 days, and Number Book every 5 months. Most recently, Caller Book was updated on November 3, 2026 and Number Book on November 4, 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.*