Comparison

Night Sky Planner vs CipherAtlas

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

Head to head
About

Night Sky Planner

This app helps amateur astronomers find celestial objects to observe. It provides detailed information on when and how to best view planets, stars, and deep-sky objects from your specific location, even without an internet connection.

Highlights
  • Night strip timeline
  • Gantt view of targets
  • Best Nights ranking
  • Point Me directional guide
  • Printable finder rose
  • Object sky-survey plates
  • Offline functionality
Features
Read full description

Night Sky Planner works out what's worth looking at tonight from your exact spot, and exactly when to catch it. It's for people who actually go out and look. Everything runs on your phone, so it works at the end of a dirt road with no signal and no account. It starts with your night: sunset, the three twilights, the moment the sky goes properly dark, then dawn on the way back. It also tracks moonrise, moonset, and how lit the Moon is, since that's usually what washes out a faint target. Then it scores about 200 objects for where you are tonight: the Messier catalog, NGC and IC deep-sky objects, the brighter stars, and the planets. For each one you get when it clears your horizon, how high it climbs, when it peaks, and the stretch of real darkness when it's worth pointing at. PLANNING THE NIGHT • Night strip: the whole night on one timeline, dusk through darkness to dawn • Gantt view: every target you've picked and its window across the night, marked at its highest point • Best Nights: ranks the coming nights for one object, so you know whether to go now or wait out the Moon FINDING IT • POINT ME: hold the phone up and a compass-and-tilt guide walks you onto the target you chose • A printable finder rose with azimuth and altitude, for setting circles or the naked eye SEEING WHAT IT IS • A sky-survey plate for every object, plus the plain facts: type, magnitude, size, constellation • Thumbnails ship inside the app; tap once to pull the full-resolution plate and keep it for offline nights MAKING IT YOURS • Filter by gear (naked eye, binoculars, or telescope) and by object type • Set location by GPS, or search a place and drop a pin • A clean share card for the night's list • Paper and night themes, in a plain monospaced almanac style • iPhone and iPad, portrait or landscape PRIVATE, AND IT STAYS THAT WAY No account, no sign-up, no ads, nothing tracking you, and no server of ours for anything to land on. The motion sensors stay on the phone, and when the sky view uses the camera to help you line up on a star, those frames are read and thrown away on the spot — nothing is photographed or saved. It does reach the network for four things: an hourly cloud forecast for your spot, which is the one it fetches on its own; a place search, if you type one; Apple Maps, if you open the map picker; and a full-resolution sky-survey plate from CDS in Strasbourg, if you ask for one. Every bit of the astronomy is computed on your phone, so it all still works with no signal. Set your location and see tonight's list. Clear skies.

About

CipherAtlas

Features
Read full description

Something happens — a headline, a name, a date — and you want the numbers. CipherAtlas answers in every cipher at once. THE DECODER Type anything. Ten historical ciphers compute instantly — English Ordinal, Full Reduction, Reverse Ordinal, Reverse Reduction, Latin (Agrippa), Sumerian, Chaldean, Septenary, Bacon, and Hebrew with final forms — with per-letter breakdowns you can inspect. THE ATLAS Every value is checked against a ranked match database of 73,000 entries: people, sports teams, organizations, Bible names, world cities, and the phrases the community actually tracks. See who else lands on your number in one tap. NUMBER BIOGRAPHIES Numbers have reputations. The tracked canon explains them — properties, prime facts, digit sums, and how each number is used in the practice. THE SPAN ENGINE The signature move: the distance between any two dates, counted every way — days, days inclusive, weeks, months, years. 20,000 public figures ship with birth and death dates wired in, so "days from a figure's birthday to today" is one search away. YOUR NUMBERS Set your birthday for life path, personal day, personal year, days alive, and days to your next birthday — computed fresh every morning. THE DAILY PRACTICE Today's date numerology at a glance, born-on-this-day figures, an optional morning notification with real numbers (never spam), and a streak that freezes instead of breaking when life happens. BUILT LIKE AN INSTRUMENT Dark, fast, and private. Everything runs on your device: no account, no ads, no analytics, no data collection. Your history, favorites, and cases stay yours — export and import them any time. FREE VS PRO Free gives you every cipher and 10 match reveals a day. CipherAtlas Pro unlocks unlimited reveals, the full 20,000-figure date database, custom figures, clean share cards, and auto-backup — $4.99/month, $29.99/year, or $69.99 once, forever. Values follow cited historical systems. CipherAtlas is a research and entertainment tool and makes no factual or predictive claims.

Screenshots

Night Sky Planner4 screens
CipherAtlas4 screens

Verdict

The call

The clearest difference is iOS requirement: CipherAtlas at 15.0 against Night Sky Planner's 17.0. 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
Night Sky Planner versus CipherAtlas: the parameters behind the verdict, then further details
ParameterNight Sky PlannerCipherAtlas
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size4 MB7 MB
Age rating4+4+
DeveloperBryson LoughmillerJustin Showalter

In-app purchases

None

Night Sky Planner

No in-app purchases

None

CipherAtlas

No in-app purchases

Questions

Is Night Sky Planner free?
Night Sky Planner is free to download, with no in-app purchases.
Is CipherAtlas free?
CipherAtlas is free to download, with no in-app purchases.
Do Night Sky Planner or CipherAtlas have ads?
Neither Night Sky Planner nor CipherAtlas shows ads.

Other comparisons