Whenr Whenr vs SolarLunar Data
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Whenr Whenr
This app simplifies complex time calculations, helping you easily determine time differences, future times, and duration sums. It offers an intuitive interface and convenient options to copy, set reminders, or share results.
- Calculate time differences
- Determine future times
- Sum time durations
- Copy results to clipboard
- Create reminders from results
- Share time calculations
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Doing math with dates and times is hard. Whenr Whenr makes it easy, with a simple calculator-style interface for dates, times, durations, and unit conversions. There are no awkward forms, no modes to switch between, and no workflows to learn. Just type in your values, select the function you want to apply, and get your answer. With Whenr Whenr you can: - Answer time questions quick and easy. For example, calculate “how long is it from now until 7:42?” or “what time will it be in 4 hours and 47 minutes?”? - Count days between dates, add weeks to a date, or work across months without manually counting. - Make schedules easier to reason about. Figure out equal turns, manipulate durations, split time fairly, and keep plans running smoothly. - Make weird durations readable. Convert amounts like 400 hours into weeks, 5,000 minutes into days, or 10,000 seconds into hours, so you can actually think about them. And it does all this in a familiar calculator-style interface - not a maze of tabs and dropdowns. There's no mode switching, no confusing forms, and no translating your question into an app's weird logic. You just enter dates and times using the keypad and get the right answer fast.
SolarLunar Data
Visualize sun and moon shadows at any time and location. Save favorite spots, receive sunrise/sunset alerts, and check current sky conditions. Zoom in for detailed analysis of celestial body positions.
- Sun and moon shadow visualization
- Time and date manipulation
- Favorite locations list
- Sunrise/sunset alerts
- Moon phase tracking
- Map-based location search
- Current sky conditions
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Locate sun and moon shadows anytime, anywhere. Watch as you change the minute, hour, day and month. Keep a list of favorites to return to and check details of sun and moon location. Set a notification to alert you 10 minutes before the sun is at its highest each day. Quick check for sunrise, transit and set along with same for moon as well moon phase. Quick reset back to user location. Search or tap on map to change location. Zoom in for detailed examination. Easy check for current sky conditions and temperature at user selected location.
Screenshots
Verdict
The clearest difference is ratings volume: Whenr Whenr at 4 against SolarLunar Data's 1. Whenr Whenr also leads on device support (3 vs 1). On price, rating, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Whenr Whenr against 5.0 for SolarLunar Data. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
| Parameter | Whenr Whenr | SolarLunar Data |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 22 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Darin Kelkhoff | Thomas Mead |
Customer experience
Whenr Whenr
SolarLunar Data
In-app purchases
Whenr Whenr
No in-app purchases
SolarLunar Data
No in-app purchases
Questions
Is Whenr Whenr free?
Is SolarLunar Data free?
Which has better reviews, Whenr Whenr or SolarLunar Data?
Do Whenr Whenr or SolarLunar Data have ads?
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