# Number Book: Caller ID & Block — Reverse phone number lookup

> Reverse phone lookup and spam call blocking application. (iPhone/iPad app by 腊梅 赵.)

- Source: https://appshunter.io/ios/app/number-book-caller-id-and-block/id6463476985 (this page in markdown: same URL + `.md`)
- Developer: [腊梅 赵](https://appshunter.io/developer/1687237711)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Rating: 4.29/5 from 24 App Store ratings
- Age rating: 17+
- Requires: iOS 12.0 · 37 MB
- Languages: Arabic, English, French, German, Japanese, Portuguese, Russian, Spanish, Chinese
- Released: 2023-10-03
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/number-book-caller-id-and-block/id6463476985/reviews.md

## What is Number Book?

Number Book: Caller ID & Block is an application designed for reverse phone number lookup that allows you to identify the caller. With a seamless user experience, you can quickly discover the owner's hidden information. Additionally, our app provides blocking features to protect you from unwanted spam calls.

Reverse phone lookup
Just enter the phone number and the app will instantly retrieve and provide you other relevant details of the owner related to the phone number.

Manage your personal blacklist
Create a personal blacklist to avoid spam calls.

Privacy Policy: https://sites.google.com/view/numberlookup-app/privacy-policy
Terms of use: https://sites.google.com/view/numberlookup-app/terms-of-services

## Key features

- Reverse phone number lookup
- Identify caller information
- Block spam calls
- Personal blacklist management
- Seamless user experience

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Number Looup: Weekly Pro | $8.99 | per 7 days |
| number looup: Yearly Pro | $39.99 | per year |



## Frequently asked questions about Number Book

### What is Number Book used for?

Number Book is used for reverse phone number lookup to identify unknown callers and for blocking unwanted spam calls by managing a personal blacklist.

### How does Number Book identify callers?

You can enter a phone number into the app, and it will instantly retrieve and provide relevant details about the owner associated with that number.

### Can Number Book block calls?

Yes, Number Book provides blocking features to protect you from unwanted spam calls. You can create a personal blacklist to manage these numbers.

### What devices does Number Book support?

Number Book is supported on iPhone and iPod devices.

### What is the age rating for Number Book?

The age rating for Number Book is 17+, indicating mature content may be present.

### How often is Number Book updated?

The latest version of Number Book is 1.3.2, and it was last updated on April 21, 2025. This suggests frequent updates.

### Does Number Book have ads?

Based on the provided data, Number Book does not have advertisements.

### What are the subscription options for Number Book?

Number Book offers subscription plans including a Weekly Pro for $8.99 and a Yearly Pro for $39.99.

## Version history (last 5 releases)

### 1.3.2 — 2025-04-21

We're excited to announce the latest update for our mobile app! In this version, we've made some important improvements:

- Bug Fixes: We’ve addressed several known issues to enhance the app's stability and performance.
- User Experience Optimization: We've fine-tuned various features to provide a smoother and more intuitive experience for our users.

Thank you for your continued support! We hope you enjoy the improved app experience.

### 1.3.1 — 2024-01-30

Thank you for using Number Book, we've made the following improvements in this version:
1. New APP Logo
2. Fix the bug.

### 1.3 — 2024-01-25

Thank you for using Number Book, we've made the following improvements in this version:
1. New APP Logo
2. Language localization in Japanese, French, Russian, Traditional Chinese, Portuguese, Spanish, German and other countries
3. Improve user experience

### 1.2.1 — 2023-12-20

Thank you for using Number Book, we've made the following improvements in this version:
1. New APP Logo
2. Improve user experience

### 1.2 — 2023-12-12

Thank you for using Number Book, we've made the following improvements in this version:
1. New digital business card
2. New Arabization of some languages
3. Improve user experience

## Apps similar to Number Book

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [TrapCall: Reveal No Caller ID](https://appshunter.io/ios/app/trapcall-reveal-no-caller-id/id877286524) | 4.2 (25,470) | Free | Business |
| [Find Call - Identify Caller ID](https://appshunter.io/ios/app/find-call-identify-caller-id/id1597711200) | 4.3 (259) | Free | Business |
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| [ME Yellow All-know](https://appshunter.io/ios/app/me-yellow-all-know/id1670034220) | 4.1 (101) | Free | Business |
| [Second Phone Number'](https://appshunter.io/ios/app/second-phone-number/id1369478044) | 4.6 (44,276) | Free | Business |
| [2nd Phone Number: BusinessLine](https://appshunter.io/ios/app/2nd-phone-number-businessline/id1584777868) | 4.6 (3,757) | Free | Business |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*