Comparison

Head Tracker vs Gallery Checkup

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Head Tracker

This app provides responsive 6DOF head tracking for PC games using your iPhone's camera. Enjoy immersive flight and driving simulations without expensive hardware or uncomfortable headsets.

Highlights
  • 6DOF head tracking
  • Wireless Wi-Fi connection
  • No external hardware needed
  • Accurate and responsive tracking
  • Easy setup
  • Compatible with opentrack
Read full description

Head Tracker uses iPhone’s front-facing TrueDepth camera to provide responsive and accurate 6DOF (degree of freedom) head tracking input to opentrack. Allowing users to enjoy flight and driving simulation games without expensive hardware or wearing uncomfortable headsets. ================================== Supported Devices (iPhone 11 and newer) ================================== This app requires device with TrueDepth camera or Devices with A12 or later processors: iPhone 11, iPhone SE(2nd Gen), iPad (8th Gen), Pro (2nd Gen) and later are supported. ================= Features ================= - 6 DOF - Connects over wifi network, no need for cables - No need to wear any uncomfortable head tracking headsets - Accurate and responsive (up to 60fps) - simple to setup ================================== opentrack supported games includes: ================================== - Microsoft Flight Simulator - FSX - DCS World - Star Citizen - Elite: Dangerous - IL2 - Euro Truck - and more. ================= Customer Reviews ================= "Installation took a couple of minutes on the PC and after the latest update is now smooth as butter. Looking forward to more improvements! Works perfectly on Euro Truck and other racing sims I play like Assetto Corsa etc" "I sold my TrackIR headset some years ago and missed it now in the new Flight Simulator - and guess what: this is combined with opentrack the ideal replacement. It “just works” and is easy to set up. Fair pricing. 5 stars. Thank you, John." ================= How to use: ================= - Open Head Tracker app on your iPhone, set your PC's IP address, then start - Launch opentrack application on your PC, select "Network over UDP" and the "freetrack 2.0" protocol, and press start - Start your favourite simulator game, it will now follow you head movements in the virtual cockpit. Visit https://jbcconsulting448679429.wordpress.com/head-tracking-quick-start/ for detailed instructions and download opentrack preset profile. ================================== Versions (Free and in-app purchase) ================================== Try out the free version. The free version allows you to play for 10 minutes per session, you can restart to extend the trial. Upgrade to the full version via in-app purchase to remove trial limit and automatic screen dimming to reduce battery usage. ================================== More Information and Support ================================== Visit https://jbcconsulting448679429.wordpress.com for more tips, network setup and troubleshooting instruction on configuring head tracking, and contact me for support.

About

Gallery Checkup

Features
Read full description

Your camera roll is full. Your photos are private. Keep both true. Gallery Checkup finds the clutter hiding in your photo library — and clears it without ever sending a single photo off your device. One tap starts a private scan, right on your iPhone or iPad. In seconds you get clean, sorted review bundles for the stuff quietly eating your storage: • Old screenshots you never look at again • Large videos taking up the most space • Similar shots and photo bursts — keep the best, drop the rest • Live Photos and blurry or dark misfires • Saves from social and chat apps • Older loose photos gathering dust • RAW + JPEG duplicates of the same shot Open any bundle and review it your way — one photo at a time, keep what matters, and mark only what you want gone. Nothing leaves your library until you say so. You are always in control • Every photo and video stays on your device. No uploads. No cloud. No accounts. • Works fully offline. • Favorites are protected automatically. • Nothing is deleted until you confirm — twice, if you want. • See exactly how much space you'll get back before you remove anything. Free to start Scan your whole library and review one full cleanup bundle for free. Like what you see? Unlock every bundle with an optional subscription and reclaim gigabytes in minutes. Stop scrolling past "Storage Almost Full." Give your library a checkup today. Subscription Gallery Checkup offers an optional monthly auto-renewing subscription that unlocks review of all cleanup bundles while active. The price is shown before purchase and may vary by country or region. Payment is charged to your Apple Account after confirmation. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Privacy Policy: https://gallerycheckup.app/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Notes: Kept all required subscription disclosure + both links — Apple rejects auto-renew listings without them. Removed word-for-word feature dump; led with the tension (full roll vs. privacy) since that's the hook. Keyword field: skipped "gallery","checkup","photo" — title already indexes those; don't waste chars. Add "ios cleaner" or "smart" only if you drop something else — you're at 164/170.

Screenshots

Head Tracker2 screens
Gallery Checkup4 screens

Verdict

The call

The clearest difference is update cadence: Gallery Checkup at every 3 days against Head Tracker's fortnightly. Head Tracker's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Head Tracker sells 1 one-off in-app purchase and Gallery Checkup sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Head Tracker ships an update fortnightly, Gallery Checkup every 3 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Head Tracker versus Gallery Checkup: the parameters behind the verdict, then further details
ParameterHead TrackerGallery Checkup
PriceFreeFree
Rating4.2 (63 ratings) — better—
Positive reviews70.5% of reviews—
Number of ratings63 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size2 MB13 MB
Age rating4+4+
DeveloperJohn YuRafael Silva

Bugs and requests

Head Tracker

Reported bugs

10 issues
  • Pitch flips upside down when yawing
  • Purchase not restoring after reinstall
  • Camera always in portrait mode
  • Image gets dark after a few seconds
  • Tracking is shaky and buggy
Show 5 more
  • Connection drops and won't reconnect
  • Does not work with iPhone SE
  • Does not work with iPhone 7
  • Does not work with iPhone 8
  • Roll axis detects other axis components

Requested features

5 requests
  • Option to turn off screen when tracking
  • Always visible rotation button for landscape camera
  • Ability to brighten screen for better tracking
  • Use IR camera for low-light conditions
  • Option to make screen black to reduce battery/screen burn

Gallery Checkup

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Head Tracker

One-time1
  • Full Version$1.99
3 purchases

Gallery Checkup

Subscriptions2
  • Bundles Unlock - Monthly$2.991 Month
  • Bundles Unlock - Annual$29.991 Year
One-time1
  • Lifetime Unlock$49.99

Questions

Is Head Tracker free?
Head Tracker is free to download, with in-app purchases available.
Is Gallery Checkup free?
Gallery Checkup is free to download, with in-app purchases available.
Do Head Tracker or Gallery Checkup have ads?
Neither Head Tracker nor Gallery Checkup shows ads.
Which is updated more often, Head Tracker or Gallery Checkup?
Head Tracker ships an update fortnightly, and Gallery Checkup every 3 days. Most recently, Head Tracker was updated on October 24, 2026 and Gallery Checkup on October 31, 2026.

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