# Sentrius BT510 vs etoot.

The clearest difference is update cadence: etoot. at every 5 weeks against Sentrius BT510's every 6 months. Sentrius BT510's advantage is iOS requirement (13.6 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.

Sentrius BT510 ships an update every 6 months, etoot. every 5 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Sentrius BT510 | etoot. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Size | 80 MB | 33 MB |
| Requires iOS | **13.6** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ezurio LLC](https://appshunter.io/developer/1529015949) | [Alon Berman](https://appshunter.io/developer/1662391409) |

## What reviewers say

### Sentrius BT510

[App page](https://appshunter.io/ios/app/sentrius-bt510/id1495394256)

**Features:** macOS Compatibility

**In-app purchases:** none


### etoot.

[App page](https://appshunter.io/ios/app/etoot/id1662391407)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sentrius BT510 free?

Sentrius BT510 is free to download, with no in-app purchases.

### Is etoot. free?

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

### Do Sentrius BT510 or etoot. have ads?

Neither Sentrius BT510 nor etoot. shows ads.

### Which is updated more often, Sentrius BT510 or etoot.?

Sentrius BT510 ships an update every 6 months, and etoot. every 5 weeks. Most recently, Sentrius BT510 was updated on September 8, 2026 and etoot. on September 18, 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.*