# CallStar vs ADS Uptime

The clearest difference is iOS requirement: CallStar at 8.0 against ADS Uptime's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CallStar ships an update every 4 months, ADS Uptime every 7 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | CallStar | ADS Uptime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/callstar/id533366309/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free | — |
| Size | 14 MB | 27 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nordcom Oy](https://appshunter.io/developer/533366312) | [Leine & Linde AB](https://appshunter.io/developer/1453820554) |

## What reviewers say

### CallStar

[App page](https://appshunter.io/ios/app/callstar/id533366309)

Manage inbound business calls, utilize versatile number services, and access teleconference features directly from your mobile device. Optimize outbound calls with Least Cost Routing. Requires configuration from a CallStar service provider.

**Highlights:** Inbound call management, Versatile number service, Teleconference features, Least Cost Routing (LCR), FLCR for international calls

**Features:** macOS Compatibility

**In-app purchases:** none


### ADS Uptime

[App page](https://appshunter.io/ios/app/ads-uptime/id1453820555)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CallStar free?

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

### Is ADS Uptime free?

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

### Do CallStar or ADS Uptime have ads?

Neither CallStar nor ADS Uptime shows ads.

### Which is updated more often, CallStar or ADS Uptime?

CallStar ships an update every 4 months, and ADS Uptime every 7 months. Most recently, CallStar was updated on November 1, 2026 and ADS Uptime on October 26, 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.*