# Keelin vs SmartESS

Keelin and SmartESS are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Keelin ships an update every 3 weeks, SmartESS monthly. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Keelin | SmartESS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (125 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews)** |
| Number of ratings | — | **125** |
| Positive reviews | 16.7% of reviews | **19.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 108 MB | 198 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [佳喜 肖](https://appshunter.io/developer/791981887) | [祥梯 孟](https://appshunter.io/developer/1070155084) |

## What reviewers say

### Keelin

[App page](https://appshunter.io/ios/app/keelin/id798026651)

Monitor your car's location and operational status in real-time from your phone. Remotely control vehicle systems, view historical data, and receive fault diagnosis information and alarms. Includes a car locking feature for security.

**Highlights:** Real-time vehicle location tracking, Remote vehicle system control, Historical location data and playback, OBD fault diagnosis information, Alarm notifications for emergencies, Mobile car locking function

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

**In-app purchases:** none


### SmartESS

[App page](https://appshunter.io/ios/app/smartess/id1334656760)

Monitor your energy storage machine's status in real-time with this mobile application. It offers easy-to-understand data visualization, historical data access from anywhere, and displays information in multiple dimensions. The app is designed for efficient data transfer with minimal internet traffic usage.

**Highlights:** Real-time energy storage machine monitoring, Intelligent data visualization, Simple and easy-to-understand charts, Access historical data anytime, anywhere, Multi-dimensional data display, Low internet traffic usage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keelin free?

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

### Is SmartESS free?

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

### Do Keelin or SmartESS have ads?

Neither Keelin nor SmartESS shows ads.

### Which is updated more often, Keelin or SmartESS?

Keelin ships an update every 3 weeks, and SmartESS monthly. Most recently, Keelin was updated on October 1, 2026 and SmartESS on October 13, 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.*