# 1 vs ESRschedule

The clearest difference is update cadence: ESRschedule at every 3 weeks against 1's every 5 months. ESRschedule also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

1 ships an update every 5 months, ESRschedule every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 1 | ESRschedule |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (131 ratings)](https://appshunter.io/ios/app/1-voip-softphone/id1592345280/reviews)** | — |
| Number of ratings | **131** | — |
| Positive reviews | 30.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 107 MB | 20 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [1-VoIP Enhanced Services, LLC](https://appshunter.io/developer/1592345282) | [WORKZ360 LLC](https://appshunter.io/developer/1557606932) |

## What reviewers say

### 1

[App page](https://appshunter.io/ios/app/1-voip-softphone/id1592345280)

This communication app allows users to make free calls and send texts to other users of the platform. It also supports free file sharing and offers HD voice and video capabilities. Push notifications ensure you never miss a message or call.

**Highlights:** Free calling between app users, Free texting, Free file sharing, HD voice and video support, Push notifications

**In-app purchases:** none


### ESRschedule

[App page](https://appshunter.io/ios/app/esrschedule/id6748704896)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 1 free?

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

### Is ESRschedule free?

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

### Do 1 or ESRschedule have ads?

Neither 1 nor ESRschedule shows ads.

### Which is updated more often, 1 or ESRschedule?

1 ships an update every 5 months, and ESRschedule every 3 weeks. Most recently, 1 was updated on October 30, 2026 and ESRschedule on October 28, 2026.

---

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