Comparison

Photography Essentials Calc vs Voia Tracker

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

Head to head
About

Photography Essentials Calc

This app offers a suite of photography calculators to help users achieve perfect shots. It assists with technical aspects like depth of field, focal length, and exposure, catering to both beginners and professionals.

Highlights
  • Timelapse Calculator
  • 500 Rule Calculator
  • Depth of Field (DoF) Calculator
  • Required Focal Length Calculator
  • Diffraction Limit Calculator
  • Magnification Calculator
Features
Read full description

Unlock the power of photography with Photography Essentials, your all-in-one toolkit for perfect shots. Whether you're a seasoned professional or a passionate amateur, our app provides essential calculators to elevate your photography game. Key Features: - Timelapse Calculator: Easily compute the parameters needed to create stunning time lapse videos, capturing the beauty of the changing world. - 500 Rule Calculator: Perfect your night sky shots by calculating the maximum exposure time to avoid star trails and capture the Milky Way in all its glory. - Depth of Field (DoF) Calculator: Achieve the desired sharpness and creative focus in your photos, from breathtaking landscapes to intimate portraits. - Required Focal Length Calculator: Determine the ideal focal length to get the perfect perspective for any shot, whether wide-angle or telephoto. - Diffraction Limit Calculator: Understand and manage the effects of diffraction on your images, ensuring maximum sharpness and detail. - Magnification Calculator: Calculate the magnification needed for macro photography, allowing you to capture even the smallest details with precision. - Designed for both freshers and professionals, Photography Essentials takes care of the technical details so you can focus on capturing the moment. Download now and transform your photography skills! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Voia Tracker

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VoiaTracker turns your iPhone into a wireless motion tracker and camera feed for VoiaPreviz, the iPad-based virtual production and pre-visualization app. Mount an iPhone on any camera rig and VoiaPreviz instantly gets a synchronized ARKit pose stream and live video, ready to composite against 3D environments in real time. VoiaTracker is a companion app. It does nothing on its own: it must be paired with VoiaPreviz running on an iPad on the same Wi-Fi network. HOW IT WORKS • Launch VoiaTracker on an iPhone connected to the same Wi-Fi as your iPad. • VoiaTracker automatically discovers VoiaPreviz over the local network. • The iPad assigns each connected phone a color and a camera letter (A, B, C…), so every operator on set knows exactly which tracker belongs to which camera. • ARKit world-tracking data streams continuously to the iPad, while the camera feed is delivered over WebRTC for low-latency previz compositing. DESIGNED FOR VIRTUAL PRODUCTION • Real-time ARKit 6-DoF pose streaming (position, rotation, tracking state, floor anchors). • Live camera video over WebRTC, synchronized with the pose stream. • Multi-tracker support — run several iPhones at once, each identified by color and camera letter. • Full-screen color identification mode with animal icons, readable from across the stage. • Persistent tracker identity — each phone keeps its assignment across restarts. • Local network only. No cloud. No accounts. No internet required. • One-tap export of tracking logs for archival or offline review. ON-SET WORKFLOW 1. Open VoiaPreviz on the iPad and start a session. 2. Launch VoiaTracker on each iPhone rigged to a camera. 3. Grant camera and local network permissions. 4. VoiaPreviz picks up each tracker automatically. 5. Assign cameras from the iPad — the phone shows its assigned letter and color marker instantly. REQUIREMENTS • iPhone with ARKit world-tracking support (iPhone XS or newer recommended). • iOS 18.5 or later. • Wi-Fi connection on the same local network as an iPad running VoiaPreviz. • VoiaPreviz app installed on a compatible iPad. VoiaTracker is built for filmmakers, virtual production crews, VFX supervisors, and previz artists who need reliable, low-cost, wireless on-set tracking without external hardware.

Screenshots

Photography Essentials Calc4 screens
Voia Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Voia Tracker at none against Photography Essentials Calc's 3. Photography Essentials Calc's advantage is update cadence (every 4 days vs fortnightly) and iOS requirement (16.2 vs 18.5). On price, ads 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. Photography Essentials Calc sells 3 in-app purchases, starting at $0.99 per month. Voia Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Photography Essentials Calc ships an update every 4 days, Voia Tracker fortnightly. Both last shipped on October 30, 2026.

Scorecard3 real differences · 6 level
Photography Essentials Calc versus Voia Tracker: the parameters behind the verdict, then further details
ParameterPhotography Essentials CalcVoia Tracker
PriceFreeFree
Rating2.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.2 — better18.5
Further details — not scored
Size6 MB12 MB
Age rating4+4+
DeveloperVladislav ZhirnovVoia

In-app purchases

3 purchases

Photography Essentials Calc

Subscriptions2
  • Full version / monthly$0.991 Month
  • Full version / monthly$3.991 Year
One-time1
  • Remove ADS$5.99
None

Voia Tracker

No in-app purchases

Questions

Is Photography Essentials Calc free?
Photography Essentials Calc is free to download, with in-app purchases available.
Is Voia Tracker free?
Voia Tracker is free to download, with no in-app purchases.
Do Photography Essentials Calc or Voia Tracker have ads?
Neither Photography Essentials Calc nor Voia Tracker shows ads.
Which is updated more often, Photography Essentials Calc or Voia Tracker?
Photography Essentials Calc ships an update every 4 days, and Voia Tracker fortnightly. Most recently, Photography Essentials Calc was updated on October 30, 2026 and Voia Tracker on October 30, 2026.

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