# OTKAX vs SAFEIER

The clearest difference is review sentiment: OTKAX at 50% against SAFEIER's 27%. OTKAX also leads on rating (2.3 vs 2.1). SAFEIER's advantage is ratings volume (26 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

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

OTKAX holds the better App Store score, 2.3 against 2.1. That said, the two scores are not equally well evidenced: SAFEIER has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of OTKAX's written reviews are positive against 27% of SAFEIER's.

OTKAX ships an update every 3 weeks, SAFEIER every 2 weeks. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | OTKAX | SAFEIER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/otkax/id1671817443/reviews)** | [2.1 (26 ratings)](https://appshunter.io/ios/app/safeier/id6503707902/reviews) |
| Number of ratings | 3 | **26** |
| Positive reviews | **50.0% of reviews** | 26.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 20 MB | 54 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [水金 陈](https://appshunter.io/developer/1634599571) | [ShenZhen luona technology Co. LTD](https://appshunter.io/developer/1324483440) |

## What reviewers say

### OTKAX

[App page](https://appshunter.io/ios/app/otkax/id1671817443)

This app connects to your device via Bluetooth to control and test equipment. It also includes a feature to remind users to stay hydrated throughout the day.

**Highlights:** Bluetooth device connection, Equipment control, Equipment testing, Water intake reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### SAFEIER

[App page](https://appshunter.io/ios/app/safeier/id6503707902)

Control company-manufactured Bluetooth Low Energy devices using advanced BLE5.0 technology. This app enables seamless interaction with your compatible hardware.

**Highlights:** BLE5.0 transmission technology, Control company-manufactured devices, Seamless hardware interaction

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OTKAX free?

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

### Is SAFEIER free?

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

### Which has better reviews, OTKAX or SAFEIER?

OTKAX is rated higher. OTKAX averages 2.3 out of 5 from 3 ratings, while SAFEIER averages 2.1 from 26 ratings.

### Do OTKAX or SAFEIER have ads?

Neither OTKAX nor SAFEIER shows ads.

### Which is updated more often, OTKAX or SAFEIER?

OTKAX ships an update every 3 weeks, and SAFEIER every 2 weeks. Most recently, OTKAX was updated on October 8, 2026 and SAFEIER on October 14, 2026.

---

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