Comparison

calimare vs SunSpan

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

Head to head
About

calimare

Features
Read full description

The app delivers daily updated the current water temperature of European oceans and seas. Currently it features the water temperature of of parts of the Baltic Sea, the North Sea, the Channel, the Atlantic and the Mediterranean.

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

calimare3 screens
SunSpan4 screens

Verdict

The call

The clearest difference is update cadence: SunSpan at every 2 days against calimare's every 27 months. 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

calimare ships an update every 27 months, SunSpan every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
calimare versus SunSpan: the parameters behind the verdict, then further details
ParametercalimareSunSpan
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 27 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size0 MB6 MB
Age rating4+4+
Developerrcon venture servicesMykhailo Chelnokov

In-app purchases

None

calimare

No in-app purchases

None

SunSpan

No in-app purchases

Questions

Is calimare free?
calimare is free to download, with no in-app purchases.
Is SunSpan free?
SunSpan is free to download, with no in-app purchases.
Do calimare or SunSpan have ads?
Neither calimare nor SunSpan shows ads.
Which is updated more often, calimare or SunSpan?
calimare ships an update every 27 months, and SunSpan every 2 days. Most recently, calimare was updated on October 25, 2026 and SunSpan on October 24, 2026.

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