Polariss vs Lunoris
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polariss
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Keep the days you look forward to on your Home Screen. Your next concert. The trip you just booked. An anniversary or a birthday that matters. Polariss is a countdown app that keeps those dates close, with the days left visible in the app and on your Home Screen. ◆ Make the wait part of the fun Add a concert when you get your tickets, or a vacation when you book your trip. You can also count down to an exam or race day. Keep the date and notes together in each event's details. ◆ A little something to look forward to, every day Basic countdown and calendar widgets are free. Choose the event you want to see on your Home Screen. Getting-started guides help you create your first event and set up a widget. ◆ Start free Save up to 3 upcoming events and keep past events as memories without a limit. Event editing, categories, sorting, basic reminders, and iCloud sync are also free. ◆ Share the excitement Create a countdown card or a widget-style image to share on social media or in a message. Save the image and look forward to the day together. ◆ Reminders and sync Get a reminder the day before and on the day of an event. Turn notifications on or off and choose the default reminder hour. Sync events and notes with iCloud. ◆ Polariss Pro — make it yours A one-time purchase unlocks unlimited upcoming events, 6 additional themes for individual events, and custom widget background, text, and accent colors. Keep up to 3 events together in a Medium widget or 6 in a Large widget. Add a countdown to your Lock Screen with circular, rectangular, or inline widgets. Preview the appearance in the app before purchasing. No ads. No subscriptions. Free features remain available without purchasing Pro. Event titles, notes, and dates are not sent as usage analytics events.
Lunoris
This app helps anglers find the best times to fish by analyzing solunar cycles, weather, and barometric pressure. It provides a daily fishing score and predicts which fish families are likely to be active. Users can log catches, track fishing spots, and view personalized insights.
- Solunar Watch with 24-hour dial
- Daily Fishing Score (0-100)
- Predicted Fish Family Activity
- 365-day Fishing Calendar
- Session and Catch Logging
- Personalized Fishing Insights
- Home Screen Widget
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The bite has its hour. The lake stills. A ripple where there was nothing. Then the rod tip trembles — and the whole day makes sense. Every angler lives for that stretch of time. The trouble is reaching it before it passes. Lunoris was made for people who would rather read the water than chase noise. THE SOLUNAR WATCH At the centre of the app is a 24-hour dial built for your coordinates — not the nearest city's forecast, but the sky above your spot. Blue arcs mark the major windows: the two hours each day when fish, by long observation, feed with purpose. Gold traces minor periods at moonrise and moonset. Moon overhead and underfoot sit at the top and bottom of the face. A hand moves through your local time. One look tells you where you stand. Inside the window? Twenty minutes early? Already past the peak? No almanac. No arithmetic. The whole day, readable at a glance. THE FISHING SCORE Below the dial, a score from 0 to 100 weighs moon phase, solunar timing, weather, barometric pressure, and geomagnetic activity into one plain verdict — Excellent, Good, Fair, or Poor. Leave now, or wait for the next arc? Lunoris lets you decide before you rig a rod. WHERE THE IDEA COMES FROM Anglers were reading the moon and barometer long before anyone shipped an app. In 1926, John Alden Knight went through thousands of catch records and found what old hands already suspected: feeding often clusters into windows tied to the moon passing overhead, underfoot, at rise, and at set. For a hundred years those tables lived in almanacs and pocket notebooks. Barometer lore lived in porch talk — pressure holding, fish willing; pressure falling, bite gone quiet. Lunoris brings both traditions onto one screen — Knight's windows, today's weather, pressure trend, twilight, geomagnetic activity — for your water, not someone else's. INSIDE THE APP — ALL OF IT, FREE Solunar Watch — the full bite day before you load the car. Fishing Score — one number from moon, solunar peaks, pressure trend, wind, cloud, season, and Kp. The same logic on Home, calendar, and widget. Best Targets — which fish families are likely active near you today. 365-day Calendar — scroll months ahead and pick days when moon and solunar line up. Active Sessions and "Caught!" — start a session on the bank. One tap records a fish with GPS, a photo, and a snapshot of the sky exactly as it was. Journal — sessions, catches, photographs; a private log, not a spreadsheet. Your Map — every spot you have earned, kept on your device alone. Personal Insights — over time, your patterns emerge: moon phases, pressure bands, baits, hours, success by spot. Nothing leaves the phone. Home Screen Widget — score and peak window for each saved location. Notifications — strong days, major solunar periods, sudden pressure shifts. Fishing Restrictions — local rules where data exists. ON THE WATER Moon and solunar math run on your phone without a signal. Weather updates when you have one; if a front outruns the forecast, tap Recalculate now. Dawn on a lake you have fished for years. A cliff of falling pressure at dusk. One free hour — is the drive worth it? Lunoris trades guesswork for a clear read. Everything included. No subscription. No ads. The score is angling tradition turned into software — a guide, not a promise. Know your regulations. Fish carefully.
Screenshots
Verdict
The clearest difference is price: Polariss at Free against Lunoris's $2.99. Lunoris's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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
Polariss is free to download; Lunoris costs $2.99 up front. Polariss sells 1 one-off in-app purchase. Lunoris asks for nothing beyond the download.
Polariss ships an update weekly, Lunoris every 6 days. Both last shipped on October 31, 2026.
| Parameter | Polariss | Lunoris |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Yutaka Kubota | Denis Kashin |
In-app purchases
Polariss
- Polariss Pro$4.99
Lunoris
No in-app purchases









