Comparison

Focus Stacks vs Twin

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

Head to head
About

Focus Stacks

Organize your tasks and ideas with a visually appealing, card-based system. Capture everything, customize with colors, add detailed notes, and sync across devices. Never let a task or idea slip away again.

Highlights
  • Capture every task easily
  • Customize lists with colors
  • Attach detailed notes to tasks
  • Automatic iCloud syncing
  • Card-based design
Features
Read full description

Unleash the power of your productivity and never let another brilliant idea or must-do task slip through the cracks again! Imagine a world where every movie you've been dying to watch, every spark of inspiration for your next groundbreaking project, and every little to-do is neatly organized, not just in your mind, but right at your fingertips. Our app is crafted for the list-makers, the planners, the doers — those who thrive on keeping life seamlessly organized both at work and at home. Dive into a digital oasis of calm with our card-based design, where clutter is banished and your tasks come to life in a visually stunning, easy-to-navigate space. Say goodbye to mental overload and hello to clear, focused stacks that are as satisfying to use as they are effective. Here's what makes Focus Stacks a must-have: • Capture every task with ease, ensuring nothing important gets forgotten. • Customize your lists with a rainbow of colors to make your productivity system not only efficient but also uniquely yours. • Attach detailed notes to your tasks, from vital phone numbers to extended thoughts, making sure every piece of information is just a tap away. • With automatic, secure syncing with iCloud, your Stacks are always up-to-date across all your devices, safeguarding your progress and ideas wherever you go.

About

Twin

Create 3D digital twins of your physical items using your iPhone or iPad. Seamlessly bring these models into your Apple Vision Pro environment for immersive experiences. Explore your creations with advanced filters and organization tools.

Highlights
  • Create 3D models using photogrammetry
  • View models in visionOS environments
  • Apply filters and colorways to models
  • Automatic syncing between Apple devices
  • Organize models with search and sorting
  • Browse and place models on Apple Vision Pro
Features
Read full description

Make digital twins of your stuff using Twin! Twin is the fastest way to create 3D models of things around you for use in visionOS. Want to see your keyboard while fully immersed in an Apple Vision Pro environment? Want to bring your desk decor into the world of spatial computing? Want to use photogrammetry to scan your things? Want to visualize your models in brand new ways on Vision Pro using Twin Pro Filters? Twin can help. To make a 3D model for use in visionOS, all you need to do is: 1. Use Twin on your Apple iPhone or Apple iPad to scan your item 2. Use Twin on your Apple Vision Pro to place your digital twin That's it! - Your Twin models will be visible even when fully immersed in a visionOS environment, scan in your keyboard and actually see what you're typing on - Your Twin models are created using photogrammetry so they keep their real-world size, bring your favorite things with you into visionOS - Your Twin models can create fun twists on your world, mix and match the real world and the virtual world to your heart's content Please note: • Scanning on iOS and iPadOS requires a device with LiDAR and an A14 Bionic chip or later – this generally means an Apple iPhone Pro released in 2020 or later, or an Apple iPad Pro released in 2021 or later • Models are not tracked, they are not linked to a real world object, and they are stationary – place the stationary Twin model over your stationary real-world objects or wherever you desire • You must be signed into the same Apple ID across your devices – sign into the same account on your Apple iPhone/Apple iPad that creates the scans as well as on your Apple Vision Pro to place the models Twin's Features: 1. Use the photogrammetry capabilities of Twin on iOS/iPadOS to create 3D models (photogrammetry models require a minimum of ten pictures and can use up to a maximum of 200 pictures, pictures must be taken from different angles) 2. Filter your models to bring them to life in entirely new ways – create new colorways or use a filter on your stuff that would be impossible in the real world 3. In the Twin app models are automatically synced between devices signed into the same Apple ID 4. Search, sort, favorite, and rename your 3D models to organize them the way you want 5. Browse your 3D models on your Apple iPhone/Apple iPad or truly see them come to life as you browse and place them in 3D on your Apple Vision Pro WARNING: Photogrammetry works well with some objects and doesn't work at all with other objects, failure to follow these guidelines may result in a failure to create 3D models from your objects. OBJECTS THAT WORK: Solid, non-reflective, evenly lit objects that are less than 4 feet in all dimensions (width, height, depth) OBJECTS THAT DO NOT WORK: Transparent, shiny, monochromatic, unvaried texture, casting shadows objects that are greater than 4 feet in any dimension (width, height, depth) Bring your physical world into your visionOS spatial computing digital world with Twin! Twin Pro Subscription There are some features only available to Twin Pro subscribers: - Ability to place more than one model simultaneously in Twin on Vision Pro - Ability to filter your models in Twin on Vision Pro - No commitment, cancel anytime Subscription Pricing and Terms Payment will be charged to the credit card connected to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Apple ID Subscriptions after purchase. Any unused portion of a free trial period will be forfeited if you purchase a subscription. Privacy Policy: https://1984.dev/Twin-Privacy.html Terms of Use: https://1984.dev/Twin-Terms

Screenshots

Focus Stacks3 screens
Twin4 screens

Verdict

The call

The clearest difference is price: Twin at Free against Focus Stacks's $4.99. Twin also leads on ratings volume (4 vs 1). Focus Stacks's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 2). On ads, device support and iOS requirement 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

Twin is free to download; Focus Stacks costs $4.99 up front. Twin sells 2 in-app purchases, starting at $1.99 per month. Focus Stacks asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Focus Stacks holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

Focus Stacks ships an update weekly, Twin fortnightly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

Scorecard6 real differences · 4 level
Focus Stacks versus Twin: the parameters behind the verdict, then further details
ParameterFocus StacksTwin
Price$4.99Free — better
Rating5.0 (1 ratings) — better4.0 (4 ratings)
Positive reviews—75.0% of reviews
Number of ratings14 — better
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, Vision ProiPhone, iPad, Vision Pro — better
Requires iOS17.017.0
Further details — not scored
Size1 MB16 MB
Age rating4+4+
DeveloperAndrew Despres1984 LLC

Customer experience

Focus Stacks

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

Twin

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Focus Stacks

No in-app purchases

2 purchases

Twin

Subscriptions2
  • Pro Monthly$1.991 Month
  • Pro Annual$9.991 Year

Questions

Is Focus Stacks free?
Focus Stacks costs $4.99, with no in-app purchases.
Is Twin free?
Twin is free to download, with in-app purchases available.
Which has better reviews, Focus Stacks or Twin?
Focus Stacks is rated higher. Focus Stacks averages 5.0 out of 5 from 1 ratings, while Twin averages 4.0 from 4 ratings.
Do Focus Stacks or Twin have ads?
Neither Focus Stacks nor Twin shows ads.
Which is updated more often, Focus Stacks or Twin?
Focus Stacks ships an update weekly, and Twin fortnightly. Most recently, Focus Stacks was updated on October 7, 2026 and Twin on October 5, 2026.

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