Comparison

TwoScales vs SunSpan

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

Head to head
About

TwoScales

This app offers a dual-scale weather board for tracking global cities and a fun, fast-paced game to test your forecasting skills. View conditions in Celsius or Fahrenheit, save favorites, and compete for high scores.

Highlights
  • Dual-scale temperature display (C/F)
  • Global city weather tracking
  • Favorite location management
  • Live weather guessing game
  • Score and streak tracking
  • Light/Dark/System appearance modes
Features
Read full description

TwoScales combines a practical weather board with a fast live-weather challenge game. Track cities around the world and view current conditions in both Celsius and Fahrenheit. Search for locations quickly, save your favorites, and keep an organized board of the places you care about most. Each city includes local time, weather conditions, and additional details to help you check the forecast at a glance. When you want something more interactive, jump into Forecast Challenge and test yourself with live-weather questions. Build your score, improve your streak, and turn everyday weather checking into a quick game. Features: • View temperatures in both Celsius and Fahrenheit • Search for cities with fast suggestions • Save and manage your favorite locations • See local time and detailed weather information • Refresh conditions anytime from your weather board • Play a live-weather guessing game with score and streak tracking • Unlock support for more saved cities with a one-time purchase • Choose your preferred appearance with Light, Dark, or System mode Whether you want a clean weather tracker, a dual-scale reference, or a small challenge built around real conditions, TwoScales gives you both utility and play in one app.

About

SunSpan

Visualize an entire year of daylight, sunrise, sunset, and twilight on a single, intuitive chart. Easily inspect daily solar times and phases by tapping or dragging across the visual representation. Offers detailed insights into seasonal changes and astronomical events.

Highlights
  • Full-year daylight chart
  • Eight-stop twilight gradient
  • Inspect daily solar times
  • DST transitions marked
  • Location picker via map/GPS
  • Automatic time zone resolution
Features
Read full description

SunSpan — A Year of Daylight on One Screen SunSpan renders an entire year of sunrise, sunset, and twilight as a single chart. Each day is a vertical band shaded from astronomical night through nautical and civil twilight into full daylight, so the seasonal curve, the solstices, the equinoxes, and effects like white nights and polar day are visible at a glance. Tap or drag across the chart to select any day and see its sunrise, sunset, daylight length, and twilight phase times in a detail bubble. Features - Full-year daylight chart for any location, any year from 1900 to 2100 - Eight-stop twilight gradient: night, astronomical, nautical, civil, day - Tap or drag any day to inspect sunrise, sunset, daylight length, and twilight phase times - DST transitions marked on the chart - Location picker via satellite map, or automatic from device GPS - Time zone resolved automatically from the selected coordinates - Localized in English, Spanish, German, and Ukrainian Privacy No accounts, no analytics, no ads. Location is used only on-device to compute solar geometry and never leaves the device.

Screenshots

TwoScales4 screens
SunSpan4 screens

Verdict

The call

The clearest difference is in-app purchases: SunSpan at none against TwoScales's 1. SunSpan also leads on iOS requirement (16.0 vs 18.2). On price, rating, ratings volume and update cadence 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. TwoScales sells 1 one-off in-app purchase. SunSpan asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for TwoScales against 5.0 for SunSpan. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

TwoScales ships an update every 3 days, SunSpan every 2 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
TwoScales versus SunSpan: the parameters behind the verdict, then further details
ParameterTwoScalesSunSpan
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 3 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.216.0 — better
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperCherry Pi Solutions LLCMykhailo Chelnokov

In-app purchases

1 purchases

TwoScales

One-time1
  • Unlock More Cities$1.99
None

SunSpan

No in-app purchases

Questions

Is TwoScales free?
TwoScales is free to download, with in-app purchases available.
Is SunSpan free?
SunSpan is free to download, with no in-app purchases.
Which has better reviews, TwoScales or SunSpan?
TwoScales and SunSpan are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do TwoScales or SunSpan have ads?
Neither TwoScales nor SunSpan shows ads.
Which is updated more often, TwoScales or SunSpan?
TwoScales ships an update every 3 days, and SunSpan every 2 days. Most recently, TwoScales was updated on October 28, 2026 and SunSpan on October 24, 2026.

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