# Sentrius BT610 vs Smart Citizens

The clearest difference is update cadence: Sentrius BT610 at fortnightly against Smart Citizens's every 2 months. Smart Citizens's advantage is iOS requirement (11.0 vs 13.6). 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.

Sentrius BT610 ships an update fortnightly, Smart Citizens every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sentrius BT610 | Smart Citizens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 72 MB | 236 MB |
| Requires iOS | 13.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ezurio LLC](https://appshunter.io/developer/1529015949) | [Smart Citizens DMCC](https://appshunter.io/developer/1613122082) |

## What reviewers say

### Sentrius BT610

[App page](https://appshunter.io/ios/app/sentrius-bt610/id1545606036)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Citizens

[App page](https://appshunter.io/ios/app/smart-citizens/id1613122080)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sentrius BT610 free?

Sentrius BT610 is free to download, with no in-app purchases.

### Is Smart Citizens free?

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

### Do Sentrius BT610 or Smart Citizens have ads?

Neither Sentrius BT610 nor Smart Citizens shows ads.

### Which is updated more often, Sentrius BT610 or Smart Citizens?

Sentrius BT610 ships an update fortnightly, and Smart Citizens every 2 months. Most recently, Sentrius BT610 was updated on October 27, 2026 and Smart Citizens on October 25, 2026.

---

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