Comparison

Suntain vs Light Junkie

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

Head to head
About

Suntain

Visualize the sun's position and trajectory based on your location and date. Get sunrise and sunset times, including when the sun appears or disappears behind terrain. Access annual data on daylight and sunshine duration.

Highlights
  • Sun position and trajectory visualization
  • Horizon sunrise and sunset times
  • Sunrise/sunset behind terrain
  • Annual sunrise/sunset data
  • Daylight and sunshine duration
  • Sunshine duration analysis
Features
Read full description

This application visualize position and trajectory of the sun, based on location and date. It provides: - Horizon (sea level) Sunrise and sunset time - Sunrise and sunset behind terrain/mountain: When sun appears and disappears! Annual information of the specified location is also available: sunrise and sunset along the year, daylight and sunshine duration for every day. On top of this, number of days with more (or less) than a specific amount of sunshine duration is available.

About

Light Junkie

Track sunrise, sunset, dawn, and dusk times with a visual arc and daylight duration. Plan outdoor activities with a 7-day forecast and manage multiple locations. Features home screen widgets and iCloud syncing.

Highlights
  • Sunrise and sunset times
  • Dawn and dusk times
  • Daylight duration tracking
  • 7-day forecast
  • Multiple location support
  • Home screen widgets
  • iCloud syncing
Features
Read full description

Light Junkie is your personal sun tracker, designed for anyone who wants to live in harmony with natural light. Whether you're a photographer chasing golden hour, an early riser planning morning runs, or simply someone who wants to make the most of daylight — Light Junkie gives you all the information you need in a beautiful, intuitive interface. SUNRISE & SUNSET AT A GLANCE See today's sunrise and sunset times instantly. The elegant sun arc visualization shows you exactly where the sun is in its journey across the sky, so you always know how much daylight is left. DAWN & DUSK TIMES Plan your day with precision. Light Junkie shows civil twilight times (dawn and dusk), giving you the complete picture of usable daylight from first light to last. DAYLIGHT DURATION Track how much daylight you have each day. Compare with the winter solstice to see how much extra light you're gaining (or losing) as the seasons change. See day-over-day changes to watch the light grow or shrink. 7-DAY FORECAST Plan ahead with a week of sunrise and sunset predictions. Perfect for scheduling outdoor activities, photography sessions, or simply knowing what to expect. MULTIPLE LOCATIONS Track sun times for your favorite places around the world. Whether it's your hometown, vacation destination, or a city you're curious about — add as many locations as you like and switch between them with a swipe. POLAR NIGHT & MIDNIGHT SUN Traveling to extreme latitudes? Light Junkie handles polar night and midnight sun conditions gracefully, showing you when normal day/night cycles will return. HOME SCREEN WIDGETS Quick access to sun times right from your home screen. Beautiful widgets that match the current sky conditions keep you informed at a glance. SYNCED ACROSS DEVICES Your saved locations sync automatically via iCloud. Set up your favorite cities on iPhone and see them on your Mac — or vice versa. PRIVACY FOCUSED Your location data stays on your device. We don't collect personal information or track your usage. Light Junkie respects your privacy. --- Perfect for: • Runners and outdoor enthusiasts • Gardeners and farmers • Anyone affected by seasonal light changes • Travelers exploring new time zones • People practicing mindfulness around natural rhythms Download Light Junkie and start living in sync with the sun.

Screenshots

Suntain4 screens
Light Junkie4 screens

Verdict

The call

The clearest difference is in-app purchases: Suntain at none against Light Junkie's 1. Suntain also leads on iOS requirement (12.0 vs 26.2). Light Junkie's advantage is update cadence (every 2 weeks vs every 4 months). On price, review sentiment, ads 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. Light Junkie sells 1 one-off in-app purchase. Suntain asks for nothing beyond the download.

UpkeepUpdate frequency

Suntain ships an update every 4 months, Light Junkie every 2 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Suntain versus Light Junkie: the parameters behind the verdict, then further details
ParameterSuntainLight Junkie
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better26.2
Further details — not scored
Size54 MB6 MB
Age rating4+4+
DeveloperJacques DUMARESTKrystian Kozerawski

Customer experience

Suntain

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Light Junkie

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Suntain

No in-app purchases

1 purchases

Light Junkie

One-time1
  • Add more locations$1.99

Questions

Is Suntain free?
Suntain is free to download, with no in-app purchases.
Is Light Junkie free?
Light Junkie is free to download, with in-app purchases available.
Do Suntain or Light Junkie have ads?
Neither Suntain nor Light Junkie shows ads.
Which is updated more often, Suntain or Light Junkie?
Suntain ships an update every 4 months, and Light Junkie every 2 weeks. Most recently, Suntain was updated on October 19, 2026 and Light Junkie on October 24, 2026.

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