# sgCallerID vs UV Analyzer

The clearest difference is update cadence: UV Analyzer at every 2 months against sgCallerID's every 9 months. sgCallerID's advantage is iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

sgCallerID ships an update every 9 months, UV Analyzer every 2 months. The most recent releases landed on October 11, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | sgCallerID | UV Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sgcallerid/id1214579356/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 9 MB | 22 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jiang Nan Qing](https://appshunter.io/developer/995103102) | [IST METZ GmbH & Co.KG](https://appshunter.io/developer/1738222448) |

## What reviewers say

### sgCallerID

[App page](https://appshunter.io/ios/app/sgcallerid/id1214579356)

Identify unknown callers in real-time and block spam numbers with this app designed exclusively for Singapore iPhone users. It features a continuously updated database of over 60,000 landline numbers to help you avoid unwanted calls.

**Highlights:** Real-time caller identification, Spam call blocking, Extensive Singaporean landline database, Privacy-focused design, User reporting of spam calls

**Features:** Vision Pro support

**In-app purchases:** none


### UV Analyzer

[App page](https://appshunter.io/ios/app/uv-analyzer/id1449450187)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is sgCallerID free?

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

### Is UV Analyzer free?

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

### Do sgCallerID or UV Analyzer have ads?

Neither sgCallerID nor UV Analyzer shows ads.

### Which is updated more often, sgCallerID or UV Analyzer?

sgCallerID ships an update every 9 months, and UV Analyzer every 2 months. Most recently, sgCallerID was updated on October 11, 2026 and UV Analyzer on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*