# ESB vs Contel Connected

The clearest difference is update cadence: ESB at every 3 months against Contel Connected's every 23 months. Contel Connected's advantage is iOS requirement (15.0 vs 17.6). 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.

ESB ships an update every 3 months, Contel Connected every 23 months. The most recent releases landed on December 26, 2025 and May 15, 2026 respectively.

## The numbers

| Metric | ESB | Contel Connected |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Size | 3 MB | 115 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ESB Agile Limited](https://appshunter.io/developer/1128318020) | [Contel LTD](https://appshunter.io/developer/1586977061) |

## What reviewers say

### ESB

[App page](https://appshunter.io/ios/app/esb/id1026868275)

**In-app purchases:** none


### Contel Connected

[App page](https://appshunter.io/ios/app/contel-connected/id1587329905)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ESB free?

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

### Is Contel Connected free?

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

### Do ESB or Contel Connected have ads?

Neither ESB nor Contel Connected shows ads.

### Which is updated more often, ESB or Contel Connected?

ESB ships an update every 3 months, and Contel Connected every 23 months. Most recently, ESB was updated on December 26, 2025 and Contel Connected on May 15, 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.*