Comparison

PianetaClock vs Anywhen

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

Head to head
About

PianetaClock

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Pianeta Clock tells you what time it is on the other seven planets, worked out the way a mission does it. Not an offset from a clock on Earth. Every reading comes from the same published constants a spacecraft navigator uses: the IAU Working Group's rotation elements for how each world turns, and JPL's orbital elements for where it is. The Mars readings are checked against NASA GISS's Mars24, the reference implementation of Mars solar time. WHAT IT SHOWS • Local mean solar time, the uniform clock that never stalls or runs backwards • True solar time, where noon is the moment the Sun actually crosses the meridian, and the equation of time between the two • The day count each world's own convention uses: Mars Sol Date, Modified Julian Day, and mission sols counted from a lander's own clock epoch, so the number matches the one NASA publishes • Solar longitude and the season it marks • How far the planet is right now, how long a radio signal takes to cross that, and when it next lines up with Earth and the Sun THE ORBIT A top-down drawing of both orbits with the angle between Earth and the planet as it stands. Eccentricity is drawn as it really is, so Mercury's orbit sits visibly off-centre from the Sun, which is the same 0.206 that makes its Sun reverse direction near perihelion. Drag along the row of planets and the diagram follows your finger, world by world. TWO KINDS OF HOUR Every mission divides its day into 24 hours however long that day lasts, which makes a Martian second 1.0275 of ours and a Jovian second 0.414. You can have that, or you can keep the second and let the day run to however many hours it actually takes. Mars ends at 24:39. Mercury ends at 4222:28. PIANETA TIMER A focus session counted in another world's minutes. Twenty-five of them is ten Earth minutes on Jupiter, twenty-six on Mars, and three Earth days on Mercury, and every figure is shown with its Earth equivalent beside it so nothing surprises you. It runs on the Lock Screen and the Dynamic Island, and when it ends it says which world it was counting. While it runs, a pulse shows how far light launched at the start has travelled toward the planet, and bounces when the session outlasts the crossing. WIDGETS A dial or an orbit on the Home Screen, in whatever configuration you choose, and timers with a start button you can press without opening anything. DRAWN, NOT PHOTOGRAPHED Every world is drawn from shapes rather than an image, so it stays sharp at any size, and it is drawn from what is actually there. Jupiter's belts at their own widths, with the Great Red Spot on the one it has sat on for as long as anyone has looked. Mars's dark swath and cratered highlands. Saturn's rings with the Cassini Division left as the gap it is. Where there is more than one honest answer you choose. Venus has no visible surface at all, so you pick between the cloud deck an eye sees and the radar map Magellan made through it. Earth has three faces, and whose coastline shows is yours to decide. Saturn's globe can match the other planets or its rings can. PRIVACY It collects nothing, sends nothing, and never reaches the network. Your settings live in the app's own storage on your device.

About

Anywhen

Features
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Anywhen is a world clock and time zone converter for people who work, travel and stay in touch across time zones. Compare the current time in New York, London, Paris, Singapore, Sydney and 100 zones at a glance, plan meetings with remote teams, and check the time difference before you call. No network, no account, no ads. Anywhen is a time zone app that stops asking you to type a time. The cursor in the middle of the screen never moves. The timeline does. Drag it sideways, like winding film, and every place you added moves at once. "When it is 9:00 in London, what time is it in Tokyo and in San Francisco?" becomes something you read instead of something you calculate. ā–  Drag the time axis Let go and it keeps gliding, then settles on 15-minute steps. One tap brings you back to now. A calendar takes you to another day, keeping the time of day you were looking at. ā–  See day and night Every row is painted with a day and night band computed from sunrise and sunset, so you can tell it is the middle of the night over there without reading a single number. Business hours are marked along the bottom. ā–  Never miss a date change The thing people get wrong is not the hour, it is the day. Every row carries a +1 / -1 badge measured from the zone at the top of the list. ā–  It never goes online Anywhen makes no network requests and has no accounts. The IANA time zone database ships inside the app, so it behaves the same in airplane mode or three floors underground. It collects nothing about you. ā–  Built for VoiceOver A row is read as one sentence rather than five fragments. If dragging sideways is not an option, swipe up and down on the time in the header to move in 15-minute steps. Text size settings are followed throughout. ā–  Made for • Scheduling calls and meetings with colleagues in other time zones • Business trips and travel planning in local time • Checking whether family or friends abroad are awake • Remote teams working across several time zones • Looking up the offset from UTC or GMT 100 time zones. 16 languages. No ads, no in-app purchases, no network access.

Screenshots

PianetaClock4 screens
Anywhen3 screens

Verdict

The call

The clearest difference is device support: Anywhen at 3 against PianetaClock's 1. Anywhen also leads on iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Ā· 4 level
PianetaClock versus Anywhen: the parameters behind the verdict, then further details
ParameterPianetaClockAnywhen
PriceFreeFree
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size2 MB19 MB
Age rating4+4+
DeveloperRUOMENG XURoku, K.K.

In-app purchases

None

PianetaClock

No in-app purchases

None

Anywhen

No in-app purchases

Questions

Is PianetaClock free?
PianetaClock is free to download, with no in-app purchases.
Is Anywhen free?
Anywhen is free to download, with no in-app purchases.
Do PianetaClock or Anywhen have ads?
Neither PianetaClock nor Anywhen shows ads.

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