# SmoothTrack vs VoidLink

The clearest difference is price: VoidLink at $1.49 against SmoothTrack's $14.99. VoidLink also leads on update cadence (weekly vs every 4 months) and iOS requirement (12.0 vs 16.0). SmoothTrack's advantage is in-app purchases (none vs 1) and chart position (#193 vs unranked). On rating, review sentiment, ads and device support there is nothing between them.

SmoothTrack costs $14.99 and VoidLink $1.49 up front. VoidLink sells 1 one-off in-app purchase. SmoothTrack asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for SmoothTrack against 4.7 for VoidLink. Both are backed by a comparable volume of ratings — 249 and 82 respectively. Written reviews split almost evenly too, at 86% and 86% positive.

SmoothTrack ships an update every 4 months, VoidLink weekly. Both last shipped on September 26, 2026.

## The numbers

| Metric | SmoothTrack | VoidLink |
| --- | --- | --- |
| Price | $14.99 | **$1.49** |
| Rating | [4.7 (249 ratings)](https://appshunter.io/ios/app/smoothtrack-head-tracker/id1528839485/reviews) | [4.7 (82 ratings)](https://appshunter.io/ios/app/voidlink-extreme/id6755103808/reviews) |
| Number of ratings | **249** | 82 |
| Positive reviews | **85.7% of reviews** | 85.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#193** | — |
| Size | 10 MB | 24 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [John Goering](https://appshunter.io/developer/507507566) | [伟敏 张](https://appshunter.io/developer/1802519759) |

## What reviewers say

### SmoothTrack

[App page](https://appshunter.io/ios/app/smoothtrack-head-tracker/id1528839485)

**Currently charting:** #193 Top Paid · Action, #193 Top Paid · Simulation (US App Store)

Enhance your simulation gaming experience with phone-based head and eye tracking. This app allows for intuitive, 6-degrees-of-freedom head movements to control your in-game perspective without any extra hardware. Seamlessly look around cockpits, check blind spots, or zoom in on details with natural head gestures.

**Highlights:** 6DoF head tracking, Optional eye tracking, No extra hardware required, Works with FreeTrack/TrackIR games, Customizable view presets, Exaggerated head movements for control

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Smooth and accurate head tracking
- 👍 Affordable alternative to expensive hardware
- 💡 Doesn't require any additional equipment
- 🚀 Easy to set up and use
- 👍 Enhances immersion in flight simulators

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔋 Drains phone battery quickly
- 🔧 Requires some technical knowledge for setup
- 🔧 Calibration and sensitivity adjustments needed

**Reported bugs**

- Tracking issues with certain phone positions
- Compatibility problems with some devices/OSes

**Requested features**

- Background mode support
- Ability to use rear camera
- Improved UI and customization options


### VoidLink

[App page](https://appshunter.io/ios/app/voidlink-extreme/id6755103808)

This app enhances game streaming performance on iOS devices with features like HDR support and picture-in-picture mode. It offers advanced tools for drawing, external controller customization, and on-screen widgets for a tailored gaming experience.

**Highlights:** Enhanced streaming performance, HDR and YUV 4:4:4 streaming, Picture-in-picture mode, Drawing toolkit with pressure mapping, External controller mapping, Advanced touch and on-screen widgets, Motion control mapping

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drawing Toolkit | $5.99 | one-time |


## Frequently asked questions

### Is SmoothTrack free?

SmoothTrack costs $14.99, with no in-app purchases.

### Is VoidLink free?

VoidLink costs $1.49, and also offers in-app purchases.

### Which has better reviews, SmoothTrack or VoidLink?

SmoothTrack and VoidLink are both rated 4.7 out of 5 on the App Store, from 249 and 82 ratings respectively.

### Do SmoothTrack or VoidLink have ads?

Neither SmoothTrack nor VoidLink shows ads.

### Which is updated more often, SmoothTrack or VoidLink?

SmoothTrack ships an update every 4 months, and VoidLink weekly. Most recently, SmoothTrack was updated on September 26, 2026 and VoidLink on September 26, 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.*