Comparison

Slow Spatial vs Milky Way Tonight

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

Head to head
About

Slow Spatial

Create stunning slow-motion videos or timelapses from your iPhone's spatial videos. Enhance details with machine learning and add motion blur for immersive 3D playback. Processing is done on your device and saved directly to your Photos App.

Highlights
  • Spatial video to slow-motion conversion
  • Spatial video to timelapse conversion
  • Up to 8x smooth slow motion
  • Frame interpolation
  • ML-enhanced detail
  • Optional motion blur
  • Preserves 3D spatial format
Features
Read full description

Slow Spatial transforms your iPhone's spatial video capabilities into slow-motion content OR timelapses. Apply up to 8x smooth slow motion with frame interpolation, ML-enhanced detail, and optional motion blur — preserving full 3D spatial format for immersive playback on Apple Vision Pro. Processing takes place on the iPhone and is saved to the Photos App for easy sharing.

About

Milky Way Tonight

Plan and execute stunning Milky Way photographs with this comprehensive tool. It provides detailed forecasts, location scouting, and composition planning to help you capture the perfect shot.

Highlights
  • Tonight at a Glance forecast
  • 7-day visibility calendar
  • Dark Sky Finder
  • Composition Planner with AR
  • Sky View star map
  • NPF calculator
  • Getting Started guide
Read full description

Photographing the Milky Way takes a lot of planning and timing. Milky Way Tonight handles all of that for you in an easy to understand way. Open the app and the first thing you see is Tonight at a Glance: a plain-language summary of whether tonight is worth going out. It tells you when the Galactic Core rises and peaks, when the moon sets, what the cloud cover looks like, and how dark your skies are on the Bortle scale (light pollution levels) If tonight is a bust, it tells you the next clear window so you can start planning ahead. Below that is a 7-day forecast strip that color-codes each night by visibility quality and highlights the best opportunity in the week. Tap any day for a full breakdown. When you're ready to find a location, the Dark Sky Finder searches for darker skies near you, ranked by light pollution, cloud cover, and driving distance together. You'll find darker spots on a map and the best realistic option for tonight. The Composition Planner lets you visualize where the Milky Way arc will be positioned relative to a location before you ever leave home. See the galactic core position, plan your foreground, and show up knowing exactly what shot you're going for. Sky View not only opens a star map using your phone's compass, but with access to your camera the AR mode allows for real-time planning. Point it at the sky, the horizon or directly at your foreground to see exactly where and when the stars align over your composition. It's a powerful tool for scouting compositions in the field and knowing exactly when you need to be shooting. Core Alignment: While using Sky View, tap anywhere on screen to see exactly if & when the Milky Way Core will align above that foreground; the next time and for the rest of the season. The ultimate composition planner. H-Alpha boost mode shifts the overlay to highlight nebula and emission regions. Perfect for astro modified cameras. The visibility calendar is your personal Milky Way calendar, built off your exact location. It maps out every night of the year so you can plan shoots weeks or months in advance. Save any night to My MW Nights to add notes, see the sky conditions, and keep all your plans in one place. The NPF calculator helps you dial in the sharpest possible stars for your specific camera and lens combination, so you know the longest exposure you can shoot without trailing. When you're in the field, Dark Adaptation Mode tints and dims your screen red so your night vision stays intact. For anyone new to this type of photography, the Getting Started guide walks through the entire workflow from scratch, including how to read the data in the app, what gear settings to use, and how to actually find the Milky Way once you're in the field. Built by landscape astrophotographer Jack Fusco (@jackfusco). FEATURES - Tonight at a Glance: galactic core rise, peak, and window times for your location. Full nightly and core specific cloud forecasts - Nightly quality ratings: Excellent, Good, Brief, Limited, and Blocked with plain-language explanations - Next clear window: see exactly how many nights until conditions improve - 7-day Milky Way and cloud forecast strip - Dark Sky Finder: ranked by light pollution, cloud cover, and driving distance Bortle class and SQM ratings for any location - Composition Planner: visualize the galactic arc over your planned foreground - Sky View AR: live star map with camera overlay using your phone's compass - Monthly visibility calendar built from your exact location - Core Alignment - See exactly when the MW will line up over any foreground. - My MW Nights: save shooting nights with notes and sky data - NPF calculator: find the sharpest exposure time for your camera and lens - Dark Adaptation Mode: red screen tint to protect your night vision in the field - Offline support: cached forecast data available without a connection - Getting Started guide written for complete beginners No account required, no ads, no tracking

Screenshots

Slow Spatial4 screens
Milky Way Tonight4 screens

Verdict

The call

The clearest difference is review sentiment: Milky Way Tonight at 100% against Slow Spatial's 0%. Milky Way Tonight also leads on chart position (#163 vs unranked) and iOS requirement (15 vs 26.2). Slow Spatial's advantage is price ($1.99 vs $7.99) and update cadence (weekly vs every 4 weeks). On ads, in-app purchases, monetization model 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

Slow Spatial costs $1.99 and Milky Way Tonight $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Slow Spatial ships an update weekly, Milky Way Tonight every 4 weeks. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 6 level
Slow Spatial versus Milky Way Tonight: the parameters behind the verdict, then further details
ParameterSlow SpatialMilky Way Tonight
Price$1.99 — better$7.99
Rating—5.0 (22 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—22 — better
Update frequencyWeekly — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#163 — better
DevicesiPhoneiPhone, iPod — better
Requires iOS26.215 — better
Further details — not scored
Size2 MB3 MB
Age rating4+4+
DeveloperMatthew FisherChasing Starlight LLC

Customer experience

Slow Spatial

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Milky Way Tonight

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Slow Spatial

No in-app purchases

None

Milky Way Tonight

No in-app purchases

Questions

Is Slow Spatial free?
Slow Spatial costs $1.99, with no in-app purchases.
Is Milky Way Tonight free?
Milky Way Tonight costs $7.99, with no in-app purchases.
Do Slow Spatial or Milky Way Tonight have ads?
Neither Slow Spatial nor Milky Way Tonight shows ads.
Which is updated more often, Slow Spatial or Milky Way Tonight?
Slow Spatial ships an update weekly, and Milky Way Tonight every 4 weeks. Most recently, Slow Spatial was updated on October 10, 2026 and Milky Way Tonight on October 24, 2026.

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