# ENA vs Grata Manager

The clearest difference is rating: Grata Manager at 5.0 against ENA's 1.0. Grata Manager also leads on update cadence (every 8 days vs every 3 weeks). ENA's advantage is ratings volume (3 vs 1) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Grata Manager holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

ENA ships an update every 3 weeks, Grata Manager every 8 days. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ENA | Grata Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (3 ratings)](https://appshunter.io/ios/app/ena/id1534734643/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grata-manager/id6447966708/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Size | 49 MB | 90 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ENA Solution Inc.](https://appshunter.io/developer/1534734645) | [Grata Technologies Inc.](https://appshunter.io/developer/1551903737) |

## What reviewers say

### ENA

[App page](https://appshunter.io/ios/app/ena/id1534734643)

This app allows remote control of industrial thermostats from anywhere in the world. It offers complete control over heating systems, helps reduce energy costs, and provides reporting and notifications for off-site management. Enjoy peace of mind and convenience with easy installation and durability in harsh environments.

**Highlights:** Remote thermostat control, Heating system management, Energy consumption reduction, Global accessibility, Reporting and notifications, Intuitive scheduling interface, Durable in harsh environments

**Features:** macOS Compatibility

**In-app purchases:** none


### Grata Manager

[App page](https://appshunter.io/ios/app/grata-manager/id6447966708)

This application is designed for building managers to configure smart locks. It provides the necessary tools for managing access and settings related to property security.

**Highlights:** Configure smart locks, Manage property access, Building management tool, Security settings

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

**In-app purchases:** none


## Frequently asked questions

### Is ENA free?

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

### Is Grata Manager free?

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

### Which has better reviews, ENA or Grata Manager?

Grata Manager is rated higher. ENA averages 1.0 out of 5 from 3 ratings, while Grata Manager averages 5.0 from 1 ratings.

### Do ENA or Grata Manager have ads?

Neither ENA nor Grata Manager shows ads.

### Which is updated more often, ENA or Grata Manager?

ENA ships an update every 3 weeks, and Grata Manager every 8 days. Most recently, ENA was updated on October 5, 2026 and Grata Manager on September 30, 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.*