# EWC Controls, LLC vs Sera Mobile

The clearest difference is review sentiment: EWC Controls, LLC at 100% against Sera Mobile's 38%. EWC Controls, LLC also leads on rating (5.0 vs 2.9). Sera Mobile's advantage is ratings volume (15 vs 5). 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.

EWC Controls, LLC holds the better App Store score, 5.0 against 2.9. Both are backed by a comparable volume of ratings — 5 and 15 respectively. Written reviews point the same way: 100% of EWC Controls, LLC's written reviews are positive against 38% of Sera Mobile's.

EWC Controls, LLC ships an update every 9 days, Sera Mobile fortnightly. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | EWC Controls, LLC | Sera Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ewc-controls-llc/id1456560692/reviews)** | [2.9 (15 ratings)](https://appshunter.io/ios/app/sera-mobile/id6747143907/reviews) |
| Number of ratings | 5 | **15** |
| Positive reviews | **100.0% of reviews** | 37.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 38 MB | 67 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EWC Controls, Inc.](https://appshunter.io/developer/1456560691) | [Sera Systems, Inc.](https://appshunter.io/developer/1586824730) |

## What reviewers say

### EWC Controls, LLC

[App page](https://appshunter.io/ios/app/ewc-controls-llc/id1456560692)

This app helps EWC contractors determine their zoning system requirements. It features a Bypass Calculator to recommend damper models and sizes, and a Control Panel Finder to suggest compatible control panels. Discover products and features to assist in setting up your zoning system.

**Highlights:** Bypass Damper Calculator, Control Panel Finder, Product Discovery, Zoning System Setup Assistance

**Features:** macOS Compatibility

**In-app purchases:** none


### Sera Mobile

[App page](https://appshunter.io/ios/app/sera-mobile/id6747143907)

This app connects field service professionals with real-time job updates, customer information, and schedules. It allows users to create quotes, send invoices, and accept payments directly from their mobile device.

**Highlights:** Real-time job updates, Customer information access, Quote creation and management, Invoice generation, Payment collection, Appointment scheduling, Technician KPI tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is EWC Controls, LLC free?

EWC Controls, LLC is free to download, with no in-app purchases.

### Is Sera Mobile free?

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

### Which has better reviews, EWC Controls, LLC or Sera Mobile?

EWC Controls, LLC is rated higher. EWC Controls, LLC averages 5.0 out of 5 from 5 ratings, while Sera Mobile averages 2.9 from 15 ratings.

### Do EWC Controls, LLC or Sera Mobile have ads?

Neither EWC Controls, LLC nor Sera Mobile shows ads.

### Which is updated more often, EWC Controls, LLC or Sera Mobile?

EWC Controls, LLC ships an update every 9 days, and Sera Mobile fortnightly. Most recently, EWC Controls, LLC was updated on September 14, 2026 and Sera Mobile on September 10, 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.*