# OTWmobile vs Who's on Call Plus

The clearest difference is update cadence: Who's on Call Plus at every 2 months against OTWmobile's every 8 months. 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.

OTWmobile ships an update every 8 months, Who's on Call Plus every 2 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OTWmobile | Who's on Call Plus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 105 MB | 23 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Over the Wire](https://appshunter.io/developer/1345719155) | [Dimetro](https://appshunter.io/developer/1539573996) |

## What reviewers say

### OTWmobile

[App page](https://appshunter.io/ios/app/otwmobile/id1345719156)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


### Who's on Call Plus

[App page](https://appshunter.io/ios/app/whos-on-call-plus/id6475339730)

This app simplifies managing business hotlines and helplines for the Broadsoft platform. It allows for easy call forwarding to on-call operators, eliminating the need for manual handover or complex application use. Ideal for organizations requiring continuous availability.

**Highlights:** Manages business hotlines, Facilitates helpline call forwarding, Supports Broadsoft platform, Minimizes change effort, Ensures continuous operator availability

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

**In-app purchases:** none


## Frequently asked questions

### Is OTWmobile free?

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

### Is Who's on Call Plus free?

Who's on Call Plus is free to download, with no in-app purchases.

### Do OTWmobile or Who's on Call Plus have ads?

Neither OTWmobile nor Who's on Call Plus shows ads.

### Which is updated more often, OTWmobile or Who's on Call Plus?

OTWmobile ships an update every 8 months, and Who's on Call Plus every 2 months. Most recently, OTWmobile was updated on October 26, 2026 and Who's on Call Plus on October 12, 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.*