# XKmax vs VIPER SMARTSTART PRO

The clearest difference is review sentiment: XKmax at 100% against VIPER SMARTSTART PRO's 40%. XKmax also leads on rating (4.8 vs 3.0) and update cadence (every 3 weeks vs every 8 months). On price, ratings volume, 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.

XKmax holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews point the same way: 100% of XKmax's written reviews are positive against 40% of VIPER SMARTSTART PRO's.

XKmax ships an update every 3 weeks, VIPER SMARTSTART PRO every 8 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | XKmax | VIPER SMARTSTART PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/xkmax/id6452970921/reviews)** | [3.0 (6 ratings)](https://appshunter.io/ios/app/viper-smartstart-pro/id6740499863/reviews) |
| Number of ratings | 6 | 6 |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free | Free |
| Size | 90 MB | 27 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [XKGLOW LLC](https://appshunter.io/developer/1022211243) | [VOXX Electronics Corp](https://appshunter.io/developer/1022024144) |

## What reviewers say

### XKmax

[App page](https://appshunter.io/ios/app/xkmax/id6452970921)

Transform your vehicle with advanced addressable RGBW LED lighting. Customize colors, create chasing effects, and sync lights to music or vehicle speed. Control your lighting with programmable sensors and a remote fob.

**Highlights:** Addressable LED chasing effects, RGBW and RGB color channels, Music and vehicle speed sync, Programmable sensor control, RF remote fob operation

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

**In-app purchases:** none


### VIPER SMARTSTART PRO

[App page](https://appshunter.io/ios/app/viper-smartstart-pro/id6740499863)

Control and track your vehicle remotely from your smartphone. Start your car, lock/unlock doors, and monitor its location in real-time. Features include trip review, route tracking, and security alerts.

**Highlights:** Remote start, lock, and unlock, Real-time vehicle location tracking, Trip review and route tracking, Direct Bluetooth control, Security alerts for speeding/geofencing, Vehicle status monitoring

**In-app purchases:** none


## Frequently asked questions

### Is XKmax free?

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

### Is VIPER SMARTSTART PRO free?

VIPER SMARTSTART PRO is free to download, with no in-app purchases.

### Which has better reviews, XKmax or VIPER SMARTSTART PRO?

XKmax is rated higher. XKmax averages 4.8 out of 5 from 6 ratings, while VIPER SMARTSTART PRO averages 3.0 from 6 ratings.

### Do XKmax or VIPER SMARTSTART PRO have ads?

Neither XKmax nor VIPER SMARTSTART PRO shows ads.

### Which is updated more often, XKmax or VIPER SMARTSTART PRO?

XKmax ships an update every 3 weeks, and VIPER SMARTSTART PRO every 8 months. Most recently, XKmax was updated on October 20, 2026 and VIPER SMARTSTART PRO on October 24, 2026.

---

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