# Red Calm vs eSphere

The clearest difference is iOS requirement: Red Calm at 12.0 against eSphere's 15.1. 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.

Red Calm ships an update monthly, eSphere every 2 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Red Calm | eSphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/esphere/id6762152449/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 33 MB | 82 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Jiechenxin Technology Co., Ltd](https://appshunter.io/developer/1450224562) | [Ubiety Technologies, Inc.](https://appshunter.io/developer/1476753188) |

## What reviewers say

### Red Calm

[App page](https://appshunter.io/ios/app/red-calm/id6746784444)

**Features:** macOS Compatibility

**In-app purchases:** none


### eSphere

[App page](https://appshunter.io/ios/app/esphere/id6762152449)

This app provides real-time awareness of who is home, arriving, or leaving, using AI and sensors. It focuses on providing context without constant alerts, learning household patterns for peace of mind.

**Highlights:** Resident detection with timestamps, Visitor arrival and departure tracking, Untrusted visitor alerts, Activity timeline of comings and goings, SmartChat for quick check-ins, Daily household pattern learning

**In-app purchases:** none


## Frequently asked questions

### Is Red Calm free?

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

### Is eSphere free?

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

### Do Red Calm or eSphere have ads?

Neither Red Calm nor eSphere shows ads.

### Which is updated more often, Red Calm or eSphere?

Red Calm ships an update monthly, and eSphere every 2 weeks. Most recently, Red Calm was updated on October 1, 2026 and eSphere on October 5, 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.*