Comparison

rainfo vs Solis

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

Head to head
About

rainfo

Read full description

Depending on the user, you can choose the place you want at any time You can tell right away from the sound of the rain.

About

Solis

Track the sun and moon's celestial paths with this precision almanac. Visualize daylight, twilight, and lunar phases with AR features and a 3D globe. Offers widgets for at-a-glance information.

Highlights
  • Sun and moon path tracking
  • Twilight and golden hour visualization
  • Realistic illuminated moon phases
  • Celestial Sky AR for trajectory alignment
  • Interactive 3D Earth globe
  • Home screen widgets
  • On-device calculations
Features
Read full description

Solis is a precision sun and moon almanac for observing natural light. Follow the Sun, Moon, twilight, seasons, and celestial paths from one calm iPhone experience. TODAY See sunrise, solar noon, sunset, golden hour, civil twilight, current solar elevation, weather context, and the day’s changing light. MOON Explore a monthly moon calendar with realistic illuminated phases, zodiac transitions, rise and set times, and precise lunar ephemerides. YEAR Understand annual daylight rhythm, solstices and equinoxes, daily daylight change, solar paths, and seasonal light patterns. CELESTIAL SKY AR Open the camera to align Sun and Moon trajectories with the real sky. Use the Quick Time precision ruler to move through the day and inspect celestial positions at specific times. EARTHLIGHT Explore Earth’s day-and-night terminator and seasonal axial tilt with an interactive 3D globe. WIDGETS Keep useful solar and lunar context visible from the iPhone Home Screen. SOLIS FULL Try everything free for 7 days. Then unlock the full app with a single one-time purchase. No subscription. Existing Solis owners keep their unlock. PRIVACY No ads and no third-party analytics. Astronomy calculations, saved locations, and preferences are handled on device. Solis uses Apple services for weather, maps and geocoding, purchases, and system permissions when those features are used. Designed for photographers, travelers, astronomers, architects, and anyone who plans life around natural light.

Screenshots

rainfo4 screens
Solis4 screens

Verdict

The call

The clearest difference is in-app purchases: rainfo at none against Solis's 1. rainfo also leads on iOS requirement (14.0 vs 17.6). Solis's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 days). On price 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. Solis sells 1 one-off in-app purchase. rainfo asks for nothing beyond the download.

UpkeepUpdate frequency

rainfo ships an update every 5 days, Solis every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
rainfo versus Solis: the parameters behind the verdict, then further details
ParameterrainfoSolis
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS14.0 — better17.6
Further details — not scored
Size55 MB36 MB
Age rating4+4+
DeveloperSANGBEOM PARKJiajia Zhang

In-app purchases

None

rainfo

No in-app purchases

1 purchases

Solis

One-time1
  • Solis Full$4.99

Questions

Is rainfo free?
rainfo is free to download, with no in-app purchases.
Is Solis free?
Solis is free to download, with in-app purchases available.
Do rainfo or Solis have ads?
rainfo shows ads; Solis does not.
Which is updated more often, rainfo or Solis?
rainfo ships an update every 5 days, and Solis every 2 days. Most recently, rainfo was updated on October 30, 2026 and Solis on October 31, 2026.

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