# INKBIRD vs Sierro

The clearest difference is rating: INKBIRD at 3.7 against Sierro's 1.0. INKBIRD also leads on ratings volume (6.9K vs 2) and review sentiment (23% vs 0%). Sierro's advantage is update cadence (every 4 days vs fortnightly). 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.

INKBIRD holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: INKBIRD has 6.9K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 23% of INKBIRD's written reviews are positive against 0% of Sierro's.

INKBIRD ships an update fortnightly, Sierro every 4 days. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | INKBIRD | Sierro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6.9K ratings)](https://appshunter.io/ios/app/inkbird/id1589369968/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/sierro/id6808530922/reviews) |
| Number of ratings | **6.9K** | 2 |
| Positive reviews | **22.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | Free |
| Size | 398 MB | 7 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Inkbird Technology Co. Ltd](https://appshunter.io/developer/1163595178) | [Sierro Intelligent Technology Co., Ltd](https://appshunter.io/developer/6808530924) |

## What reviewers say

### INKBIRD

[App page](https://appshunter.io/ios/app/inkbird/id1589369968)

Transform your home into a smart environment with intuitive controls for appliances and automated adjustments of temperature and humidity. Remotely monitor food temperatures and set custom alarms for optimal cooking, creating a more connected and enjoyable life.

**Highlights:** Smart home appliance control, Automated temperature and humidity adjustment, Remote food temperature monitoring, Customizable temperature alarms, Family network setup

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to set up and use
- 🔒 Reliable connection
- 👍 Useful features
- 🚀 Accurate temperature monitoring
- 👍 Great customer support

**What reviewers complain about**

- 🐛 Bugs and connectivity issues
- 👎 Unintuitive app interface
- 🔋 Battery life concerns
- 👎 Difficult to configure
- 🔒 Privacy concerns with mandatory account

**Reported bugs**

- Custom menu names reset after exiting app
- Widgets not working as expected
- Frequent app crashes and disconnections
- Sensor temperature readings inconsistent
- Unable to remove/delete connected devices

**Requested features**

- Add dark mode option
- Improve temperature graph functionality
- Allow custom alarm sounds
- Implement low temperature alerts
- Add support for more devices


### Sierro

[App page](https://appshunter.io/ios/app/sierro/id6808530922)

Monitor and manage your home energy storage system. View battery status, solar generation, and power flow. Receive alerts for power outages and low battery levels to stay informed.

**Highlights:** Monitor battery status, View solar generation, Track power flow, Receive device alerts, Get outage notifications, Low battery alerts

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

**In-app purchases:** none


## Frequently asked questions

### Is INKBIRD free?

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

### Is Sierro free?

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

### Which has better reviews, INKBIRD or Sierro?

INKBIRD is rated higher. INKBIRD averages 3.7 out of 5 from 6.9K ratings, while Sierro averages 1.0 from 2 ratings.

### Do INKBIRD or Sierro have ads?

Neither INKBIRD nor Sierro shows ads.

### Which is updated more often, INKBIRD or Sierro?

INKBIRD ships an update fortnightly, and Sierro every 4 days. Most recently, INKBIRD was updated on October 23, 2026 and Sierro on October 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*