Comparison

Projection Mapping Toolbox vs Decidr

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

Head to head
About

Projection Mapping Toolbox

This utility app assists projection mapping, AV, and live production professionals with on-site calculations. It offers tools for projector placement, throw distance, surface dimensions, and multi-projector layouts, streamlining workflows for technicians and designers.

Highlights
  • Throw Distance Calculator
  • Multi-Projector Layouts
  • Surface Dimension Tool
  • Aspect Ratio Estimator
  • CAD PDF Import
  • Projector Inventory
Features
Read full description

Projection Calculator Toolbox is a mobile utility for projection mapping, AV, and live production workflows. It is designed for on-site calculations where speed and accuracy matter. The app provides tools to calculate projector placement, throw distance, surface dimensions, and multi-projector layouts using real-world measurements and manufacturer specifications. Tools Included Throw Distance Calculator Calculate projector-to-surface distance using lens throw ratios. Multi-Projector Calculations Plan multi-projector layouts with support for edge blending. Surface Dimension Tool Convert physical surface measurements into pixel width and height. Aspect Ratio Estimator Estimate surface aspect ratio using live view or photo reference. CAD PDF Import Import technical drawing PDFs and visualize projector photometrics over layouts. Projector Inventory Store commonly used projector specifications and reuse them across calculations. Projection Calculator Toolbox is intended for technicians and designers who need reliable calculations on site without spreadsheets or desktop software. The interface prioritizes clarity and fast input to minimize setup time. Built with React and Capacitor for native iOS performance.

About

Decidr

This app offers a variety of tools to help users make decisions, from simple coin flips to mystical guidance like tarot readings. It also includes party games and features to track usage and earn achievements, all with a focus on privacy and offline functionality.

Highlights
  • Coin Flip
  • Dice Roller
  • Lucky Wheel
  • Tarot Cards
  • Runes
  • Horoscope
  • Party Games
  • Streak & Achievements
Read full description

Flip a coin. Spin the wheel. Roll the dice. Decidr gives you an answer in one tap when you cannot pick. DECISION TOOLS • Coin Flip - Classic heads or tails for quick yes/no decisions • Dice Roller - Roll 1-6 dice with realistic physics and animations • Lucky Wheel - Spin a colorful wheel with custom options • Magic 8-Ball - Ask a question and shake for mystical answers • Yes/No/Maybe - Get instant answers to your questions • Number Generator - Generate random numbers for any range • Name Picker - Randomly select names from your list • Custom Lists - Create personalized lists for any decision MYSTICAL GUIDANCE • Tarot Cards - Draw from the full 78-card deck for insight • Runes - Cast ancient Elder Futhark runes for wisdom • Horoscope - Daily readings for all 12 zodiac signs • Fortune Cookie - Crack open cookies for fortunes and lucky numbers PARTY GAMES • Truth or Dare - Classic party game with endless prompts • Would You Rather - Fun dilemmas to spark conversations • Never Have I Ever - Perfect icebreaker for groups • Hot Potato - Pass before the timer explodes! STREAK & ACHIEVEMENTS Track your decision-making journey and earn badges: • Daily Streak - Maintain consistency with daily usage tracking • Achievement Badges - Unlock rewards as you use different tools • Decision History - Review all your past decisions • Statistics - See which tools you use most PERSONALIZATION Make Decidr truly yours: • Dark Mode - Easy on the eyes with full dark theme support • Custom Lists - Create unlimited lists for restaurants, movies, activities, and more • Sound Effects - Enjoy satisfying audio feedback (respects device volume) • Haptic Feedback - Feel every interaction with adjustable vibration • Animation Speed - Choose from slow, normal, or fast animations SMART FEATURES • Voice Input - Speak your questions and list items hands-free • Quick Actions - Access your favorite tools instantly • Share Results - Share decision outcomes with friends • Offline - Works perfectly without internet connection PRIVACY FIRST Your privacy matters: • All data stored locally on your device • No account required - start using immediately • No tracking or analytics • No personal information collected • Complete control over your data PERFECT FOR: • Choosing where to eat or what to watch • Making everyday decisions quickly • Breaking analysis paralysis • Party games and game nights • Getting mystical guidance for life questions • Picking random winners or participants • Icebreakers and group activities • Making fair selections WHY DECIDR? Unlike basic decision apps, Decidr offers: • 16 unique tools for decisions, guidance, and fun • Beautiful, modern design with smooth animations • Mystical features: tarot, runes, horoscopes • Party games: Truth or Dare, Would You Rather, and more • Gamification with streaks and achievements ACCESSIBILITY • VoiceOver support for visually impaired users • Large touch targets for easy interaction • Clear, readable fonts • High contrast mode compatible • Reduced motion option Deciding lunch, picking a movie, settling an argument, drawing a winner: Decidr makes the call in a second. Privacy Policy: https://decidr.pages.dev/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Projection Mapping Toolbox4 screens
Decidr4 screens

Verdict

The call

The clearest difference is rating: Projection Mapping Toolbox at 5.0 against Decidr's 3.0. Projection Mapping Toolbox also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence and monetization model 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. Decidr sells 1 one-off in-app purchase. Projection Mapping Toolbox asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Projection Mapping Toolbox holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Projection Mapping Toolbox ships an update every 3 weeks, Decidr monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Projection Mapping Toolbox versus Decidr: the parameters behind the verdict, then further details
ParameterProjection Mapping ToolboxDecidr
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size5 MB51 MB
Age rating4+4+
DeveloperJoseph SheaAnthony Tan

Customer experience

Projection Mapping Toolbox

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Decidr

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Projection Mapping Toolbox

No in-app purchases

1 purchases

Decidr

One-time1
  • Remove Ads$2.99

Questions

Is Projection Mapping Toolbox free?
Projection Mapping Toolbox is free to download, with no in-app purchases.
Is Decidr free?
Decidr is free to download, with in-app purchases available.
Which has better reviews, Projection Mapping Toolbox or Decidr?
Projection Mapping Toolbox is rated higher. Projection Mapping Toolbox averages 5.0 out of 5 from 1 ratings, while Decidr averages 3.0 from 2 ratings.
Do Projection Mapping Toolbox or Decidr have ads?
Decidr shows ads; Projection Mapping Toolbox does not.
Which is updated more often, Projection Mapping Toolbox or Decidr?
Projection Mapping Toolbox ships an update every 3 weeks, and Decidr monthly. Most recently, Projection Mapping Toolbox was updated on October 30, 2026 and Decidr on November 5, 2026.

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