# E.C.A. Poly Smart vs HBB

The clearest difference is update cadence: HBB at weekly against E.C.A. Poly Smart's every 4 months. E.C.A. Poly Smart's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

E.C.A. Poly Smart ships an update every 4 months, HBB weekly. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | E.C.A. Poly Smart | HBB |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 172 MB | 27 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EMAS MAKINA SANAYI ANONIM SIRKETI](https://appshunter.io/developer/1745114760) | [逸鸿 林](https://appshunter.io/developer/1896641881) |

## What reviewers say

### E.C.A. Poly Smart

[App page](https://appshunter.io/ios/app/eca-poly-smart/id6476879062)

Control your home's heating remotely with this smart thermostat application. Set custom schedules, monitor temperature with open window detection, and save on energy bills. Manage multiple properties and share access with family members.

**Highlights:** Remote temperature control, Daily and weekly scheduling, Open window detection, Multiple home management, Family sharing, Comfort, Economy, Holiday modes

**Features:** macOS Compatibility

**In-app purchases:** none


### HBB

[App page](https://appshunter.io/ios/app/hbb-k/id6769996538)

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

**In-app purchases:** none


## Frequently asked questions

### Is E.C.A. Poly Smart free?

E.C.A. Poly Smart is free to download, with no in-app purchases.

### Is HBB free?

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

### Do E.C.A. Poly Smart or HBB have ads?

Neither E.C.A. Poly Smart nor HBB shows ads.

### Which is updated more often, E.C.A. Poly Smart or HBB?

E.C.A. Poly Smart ships an update every 4 months, and HBB weekly. Most recently, E.C.A. Poly Smart was updated on October 1, 2026 and HBB on October 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.*