# WS Authenticator vs CallerID

The clearest difference is in-app purchases: WS Authenticator at none against CallerID's 4. CallerID's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.6 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. CallerID sells 4 in-app purchases, starting at $4.99 per 7 days. WS Authenticator asks for nothing beyond the download.

WS Authenticator ships an update every 2 months, CallerID every 3 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | WS Authenticator | CallerID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (87 ratings)](https://appshunter.io/ios/app/callerid-true-number-search/id6753701549/reviews)** |
| Number of ratings | — | **87** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 142 MB |
| Requires iOS | 18.2 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WebSchool.au Pty Ltd](https://appshunter.io/developer/1231325044) | [Stephen Kuyper](https://appshunter.io/developer/1699577318) |

## What reviewers say

### WS Authenticator

[App page](https://appshunter.io/ios/app/ws-authenticator/id6747866858)

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

**In-app purchases:** none


### CallerID

[App page](https://appshunter.io/ios/app/callerid-true-number-search/id6753701549)

Instantly identify unknown callers and block spam, scams, and robocalls. This app offers reverse number lookup, SMS spam protection, and customizable blacklists for enhanced phone security and privacy.

**Highlights:** Real CallerID and name lookup, Reverse phone number search, Spam call blocking, SMS spam protection, Scam and fraud alerts, Smart blacklist and whitelist

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription with Free Trial | $4.99 | per 7 days |
| Weekly Subscription | $4.99 | per 7 days |
| Yearly Subscriptions | $29.99 | per year |
| Request to Delete Number | $9.99 | one-time |


## Frequently asked questions

### Is WS Authenticator free?

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

### Is CallerID free?

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

### Do WS Authenticator or CallerID have ads?

Neither WS Authenticator nor CallerID shows ads.

### Which is updated more often, WS Authenticator or CallerID?

WS Authenticator ships an update every 2 months, and CallerID every 3 weeks. Most recently, WS Authenticator was updated on October 6, 2026 and CallerID on October 24, 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.*