Comparison

Solis vs Uair

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

Head to head
About

Solis

Track sunrise, sunset, and twilight times globally with visually appealing gradient displays. Receive notifications for key solar events and access golden and blue hour times for photography. A simple widget provides at-a-glance information.

Highlights
  • Sunrise and sunset time tracking
  • Twilight time display (golden/blue hour)
  • Global city support
  • Event notifications
  • Today widget
  • Twilight type explanations
Features
Read full description

Sunrise, sunset, and twilight time time-tracker - Solis shows you when it gets dark or light in any city around the world with its beautiful gradient. - Setup notifications for all the important sun events so you never get caught out in the dark again. - See the times of golden and blue hour for photography with the perfect light. - Simple today widget to know at a glance when the next sunrise, sunset, first light, or last light occurs. - Learn about the three different types of twilight and find out how they affect the light in the sky.

About

Uair

Features
Read full description

Uair sets a mechanical watch to the second, then keeps a record of every watch you own and how each one runs. SET IT Pick a minute and Uair counts you in. Pull the crown to stop the seconds hand at 12, set the hands to the time on screen, and wait. The last three seconds fill the screen. At zero the screen flips and the phone taps in your hand: push in the crown. That's it, to the second, against your iPhone's network time. FIVE FACES Day-Date, GMT, Moonphase, Dive and Chronograph, each drawn for its complication: the date window, a second timezone on the 24-hour hand, today's moon, the bezel, the subdials. Each one comes with a short guide to what the hands are for and how to set them. THE COLLECTION Keep every watch you own in one place: photos, reference, serial, movement, what you paid, and every service. Uair lifts each watch out of its photo and sets them all at the same size, so the collection looks like one. Then find out how it really keeps time: • Listen. Lay the watch on the phone and Uair times its tick through the microphone. A rate in seconds a day, with beat rate and beat error, in about twenty seconds. • Check the time. Tap as the seconds hand passes 12, again a day or two later. Over a few days of wear you get the rate on the wrist: every position, every temperature, the one that matters. Rates are kept run by run, so you can see a watch before and after a regulation, and which ones have started to drift. WIDGETS A watch face for the Home Screen, Lock Screen and StandBy, and a Watch rate widget that shows how one of your watches is running. PRIVATE No account, no analytics. Your watches stay on your device, photos are cut out on the device, and the microphone sound is analysed as it arrives and never saved or sent anywhere. PRICING Setting your watch, the faces and the face widgets are free, always. The Collection is a one-time unlock with a free 14-day trial. The trial ends on its own and never charges you. Unlocking is one payment, with no subscription, and Family Sharing is supported.

Screenshots

Solis4 screens
Uair4 screens

Verdict

The call

The clearest difference is update cadence: Uair at monthly against Solis's every 2 months. Solis's advantage is iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Solis ships an update every 2 months, Uair monthly. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Solis versus Uair: the parameters behind the verdict, then further details
ParameterSolisUair
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.0 — better26.0
Further details — not scored
Size29 MB5 MB
Age rating4+4+
DeveloperJake RunzerDominic McPhee

In-app purchases

None

Solis

No in-app purchases

None

Uair

No in-app purchases

Questions

Is Solis free?
Solis is free to download, with no in-app purchases.
Is Uair free?
Uair is free to download, with no in-app purchases.
Do Solis or Uair have ads?
Neither Solis nor Uair shows ads.
Which is updated more often, Solis or Uair?
Solis ships an update every 2 months, and Uair monthly. Most recently, Solis was updated on November 2, 2026 and Uair on November 9, 2026.

Other comparisons