# HARD vs EFXLink

The clearest difference is rating: EFXLink at 5.0 against HARD's 3.0. HARD's advantage is ratings volume (6 vs 1) and iOS requirement (11.0 vs 15.0). 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.

EFXLink holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: HARD has 6 ratings behind it against 1, so its average is the more settled of the two.

HARD ships an update fortnightly, EFXLink every 3 weeks. The most recent releases landed on October 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | HARD | EFXLink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/hard/id1475606673/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/efxlink/id6444688070/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 13.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 181 MB | 24 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qianhai Walnut Technology Co.,Ltd](https://appshunter.io/developer/1294078241) | [Dongguan Enfitnix Technology Co., Ltd.](https://appshunter.io/developer/1656164350) |

## What reviewers say

### HARD

[App page](https://appshunter.io/ios/app/hard/id1475606673)

This app syncs with smart devices to track daily activity like steps, distance, and calories. It also monitors heart rate, sleep patterns, and records exercise routes. Receive reminders for messages, alarms, and hydration.

**Highlights:** Activity tracking (steps, distance, calories), Exercise recording with GPS tracking, Heart rate monitoring and analysis, Sleep pattern analysis, Message and reminder notifications, HealthKit integration

**Features:** macOS Compatibility

**In-app purchases:** none


### EFXLink

[App page](https://appshunter.io/ios/app/efxlink/id6444688070)

Control your Enfitnix bicycle taillights wirelessly via Bluetooth. Adjust brightness, alarm functions, and flashing modes. The app also allows for OTA updates and displays remaining battery power.

**Highlights:** Bluetooth taillight connection, Alarm function on/off, Brightness adjustment, Brake sensing switch, Automatic mode switch, OTA firmware updates, Battery power display

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

**In-app purchases:** none


## Frequently asked questions

### Is HARD free?

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

### Is EFXLink free?

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

### Which has better reviews, HARD or EFXLink?

EFXLink is rated higher. HARD averages 3.0 out of 5 from 6 ratings, while EFXLink averages 5.0 from 1 ratings.

### Do HARD or EFXLink have ads?

Neither HARD nor EFXLink shows ads.

### Which is updated more often, HARD or EFXLink?

HARD ships an update fortnightly, and EFXLink every 3 weeks. Most recently, HARD was updated on October 14, 2026 and EFXLink on September 23, 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.*