Comparison

Tide Clock vs ZORIA Sky

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

Head to head
About

Tide Clock

Features
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Tide Clock / Tide Times An analogue clock interface that to make it easy to read current tide height hour by hour, up to 360 days ahead. - Accurate tidal data from the UK Admiralty (over 500 stations) at 12 minute intervals - Worldtides (includes NOAA, over 5000 stations) at 12 minute intervals - Tide heights available for upto the next 360 days. - Create tide points so you can easily see at what times the tide is above or below a specific height( Global or by location). - Moon view, displays high and low water for the next orbit (29.5 days) and AM / PM tides - Sun dial, see sunrise & sunset times and first & first light - Can create custom tide locations and set heights and time offsets from existing stations. Please note: It is the user's responsibility to ensure that the data is suitable for their intended purpose. You may not use this data if anyone or anything could come to harm as a result of using it. The Tide Clock must not be used by vessels for navigation. Web Site and Help: https://www.tideclock.co.uk/ License Agreement: https://www.tideclock.co.uk/about/#license' Privacy Policy: https://www.tideclock.co.uk/about/#privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ZORIA Sky

This app predicts the quality of sunrise and sunset based on weather data, assigning a score from 0-100. It calculates exact astronomical times and offers a 10-day forecast, allowing users to set alerts for optimal viewing conditions. Users can also log their observations and share photos.

Highlights
  • Sunrise/sunset quality score (0-100)
  • Detailed weather data analysis
  • Exact astronomical time calculations
  • 10-day forecast
  • Customizable alert thresholds
  • Real-time sun position globe
  • Photo logging with weather data
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The sky keeps two appointments a day, and the moon a third. ZORIA tells you which ones are worth the trip. A SCORE, NOT A PROMISE ZORIA computes a 0-100 rating for every sunrise and every sunset, from Apple Weather data read at the exact hour of the event: low, mid and high cloud, humidity, visibility, chance of precipitation. The model is deliberately simple and openly stated. Mid and high clouds are the canvas that catches the light — the optimum sits around 50 % cover, because an empty sky has nothing to colour and an overcast sky has nothing to light. Low clouds cut the light at its source: they are what ruins a sunset. A sky forecast at 85 can disappoint. A sky forecast at 40 can surprise you. That is weather, and ZORIA does not pretend otherwise. EXACT TIMES, COMPUTED ON YOUR PHONE Sunrise, sunset, golden hour, blue hour, solar azimuth. All computed astronomically on the device, to the minute, with no connection required. TEN DAYS OF FORECAST, FREE FOR EVERYONE Every day shows its score, its golden window and its event time. Set your alert threshold: at 90 you will hear almost nothing. That is the point. THE ATLAS: 37,220 VIEWPOINTS Overlooks, orientation tables, promontories: 37,220 places in 102 countries, drawn from OpenStreetMap, each with its own sunset time, altitude and bearing. Sort them by distance and go to the right place, not just at the right time. ALONG THE AXIS The two days of the year when the sun will set exactly along the axis of a given viewpoint. An overlook does not move; the sun travels tens of degrees of horizon between December and June. ZORIA computes the date. YOUR PHOTOS, TIED TO THEIR SKY Shoot from inside the app: every image keeps the score, the place and the moment it was taken. Your album stays on your phone unless you publish something. THE GALLERY Other people's photos, taken that same evening, with the sky score of the moment. Publishing is a choice, never a default, and a published photo is withdrawn with one tap. No coordinates ever travel with a photo — only a place name. THE MOON Tonight's moon, drawn at its real phase and tilted the way you will actually see it from where you stand: illumination, moonrise, moonset, the next full moon, the next new moon. For your city or any other. Free. With Pro: the evenings when the full moon will rise along the axis of a viewpoint in the Atlas. Two to five dates a year for a given place, and ZORIA marks the ones where the landscape will still be lit. THE EVENING LOG Record what you actually saw. ZORIA compares your notes against its forecasts and computes how often it was right. You will know exactly how much to trust it. PASSPORT AND STREAK The time zones you have crossed, and the consecutive days you came out for the light. WHO IT IS FOR Landscape photographers, hikers, and anyone who watches the sky without a camera. WHAT STAYS ON YOUR PHONE, AND WHAT DOES NOT No ads, no tracker, no advertising identifier, no analytics. Solar times are computed on the device. Your photo album is on the device. For the weather, a pair of coordinates rounded to the kilometre is sent with no identifier attached. What does leave, and only if you decide so: a photo you publish to the gallery, with a nickname and a place name. Never coordinates. The gallery account exists only to publish, and the app is fully usable without one. ZORIA PRO Solar times, the sky score and all ten forecast days stay free, forever. ZORIA Pro adds: The Atlas and Along the Axis The full moon along the axis Alerts for every place you follow, at sunrise as well as sunset Unlimited followed places Statistics from your evening log Everything we add next, included Choose a monthly or yearly subscription, or a Founder pass paid once and kept for life. Terms and privacy: https://zoria-lever-coucher-soleil.carrd.co/ Weather data: Apple Weather. Viewpoints: © OpenStreetMap contributors (ODbL).

Screenshots

Tide Clock4 screens
ZORIA Sky4 screens

Verdict

The call

The clearest difference is update cadence: ZORIA Sky at every 2 days against Tide Clock's fortnightly. Tide Clock's advantage is iOS requirement (16.6 vs 18.0). 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. Tide Clock sells 1 in-app purchase, starting at $5.99 per year and ZORIA Sky sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Tide Clock ships an update fortnightly, ZORIA Sky every 2 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 6 level
Tide Clock versus ZORIA Sky: the parameters behind the verdict, then further details
ParameterTide ClockZORIA Sky
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better18.0
Further details — not scored
Size113 MB22 MB
Age rating4+4+
DeveloperDAVID JOHN EVANScedric liagre

In-app purchases

1 purchases

Tide Clock

Subscriptions1
  • Tides$5.991 Year
2 purchases

ZORIA Sky

Subscriptions2
  • ZORIA Pro — monthly3 Months trial$3.991 Month
  • ZORIA Pro — yearly$24.991 Year

Questions

Is Tide Clock free?
Tide Clock is free to download, with in-app purchases available.
Is ZORIA Sky free?
ZORIA Sky is free to download, with in-app purchases available.
Do Tide Clock or ZORIA Sky have ads?
Neither Tide Clock nor ZORIA Sky shows ads.
Which is updated more often, Tide Clock or ZORIA Sky?
Tide Clock ships an update fortnightly, and ZORIA Sky every 2 days. Most recently, Tide Clock was updated on November 11, 2026 and ZORIA Sky on November 10, 2026.

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