# Reverse Phone Lookup` vs Number Book

The clearest difference is update cadence: Reverse Phone Lookup` at weekly against Number Book's every 5 months. Reverse Phone Lookup` also leads on iOS requirement (13.0 vs 15.0). Number Book's advantage is rating (4.4 vs 4.0) and review sentiment (40% vs 22%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Reverse Phone Lookup` sells 4 in-app purchases, starting at $7.99 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.

Number Book holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 48 and 49 respectively. Written reviews point the same way: 22% of Reverse Phone Lookup`'s written reviews are positive against 40% of Number Book's.

Reverse Phone Lookup` ships an update weekly, Number Book every 5 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Reverse Phone Lookup` | Number Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (48 ratings)](https://appshunter.io/ios/app/reverse-phone-lookup/id1601779183/reviews) | **[4.4 (49 ratings)](https://appshunter.io/ios/app/number-book/id6475397443/reviews)** |
| Number of ratings | 48 | **49** |
| Positive reviews | 22.2% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 55 MB | 46 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Smart Technology by Flexi](https://appshunter.io/developer/1850398589) | [ByteSpeed](https://appshunter.io/developer/1724157365) |

## What reviewers say

### Reverse Phone Lookup`

[App page](https://appshunter.io/ios/app/reverse-phone-lookup/id1601779183)

This utility app provides detailed information about phone numbers, including location and operator. It also offers features like address book backup, contact management, and harassment call interception using blacklist technology.

**Highlights:** Phone number information query, Address book backup, Phone book management, Harassment call interception, Blacklist technology, Contact import/export

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Monthly Subscription | $19.99 | per month |
| Yearly Subscription | $39.99 | per year |
| VIP Subscribe Trial Basic | $39.99 | per year |


### 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 Reverse Phone Lookup` free?

Reverse Phone Lookup` 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, Reverse Phone Lookup` or Number Book?

Number Book is rated higher. Reverse Phone Lookup` averages 4.0 out of 5 from 48 ratings, while Number Book averages 4.4 from 49 ratings.

### Do Reverse Phone Lookup` or Number Book have ads?

Neither Reverse Phone Lookup` nor Number Book shows ads.

### Which is updated more often, Reverse Phone Lookup` or Number Book?

Reverse Phone Lookup` ships an update weekly, and Number Book every 5 months. Most recently, Reverse Phone Lookup` was updated on November 3, 2026 and Number Book on November 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.*