Comparison

Tempora Romae vs AstroNav SkyDial

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

Head to head
About

Tempora Romae

Features
Read full description

What day is it in the Roman calendar? Tempora Romae shows you. See today's date as the Romans wrote it, with Kalendae, Nonae, and Idus. Browse a full monthly calendar in authentic Roman format, complete with day names in Latin. The app uses your location to calculate temporal hours: the variable length hours the Romans actually used, divided equally between sunrise and sunset. Watch them tick on a sundial visualisation. Free features: • Roman date with Kalendae, Nonae, and Idus • Monthly calendar view • Latin day names • Home screen and lock screen widgets • Apple Watch app and date complication • Roman holidays and festivals • Day classification (dies fasti, nefasti, comitiales) • Nundinae (market day cycle) Tempora Romae Pro (one time purchase): • Temporal hours with sundial • 16 civil day periods, from Media Nox to Concubia Nox • Military night watches (Vigiliae) of the Roman legions • Roman wind rose with classical wind names • A.U.C. year (Ab Urbe Condita, from the founding of Rome) • Julian calendar mode • Day starts at sunrise option • Additional widgets and watch complications No accounts. No tracking. No ads. Just Rome.

About

AstroNav SkyDial

Visualize celestial movements in real-time with a dynamic dial showing the sun, moon, and planets. Explore upcoming astronomical events and plan your stargazing sessions.

Highlights
  • Real-time sun and moon tracking
  • Planetary movement visualization
  • Interactive sky dial
  • Event feed for stargazing opportunities
  • 48-hour forecast slider
  • Zodiac constellation identification
Features
Read full description

Track the sun, moon moving above you in real time with solar and moon rise / set. AstroNav keeps track of planetary movement as the day progresses, highlighting the sun, moon, planets, and zodiac constellations. Drawn as a single living dial, AstroNav shows that "now" is always a moment under the stars. PLAY THROUGH THE DAY Tap play and watch your day unfold — the sun climbs and sets, the moon rises, the light shifts hour by hour, each event lighting up as it passes. Or slide through a 48-hour window and jump to any date to see where the sun, moon, and planets will be. The dial, the light, and the sky move with you. WHEN TO LOOK UP The events feed knows when the sky is worth stepping outside for — the clear, dark, moonless windows best for stargazing, alongside full moons, meteor showers, conjunctions, equinoxes, and more. No alerts, no nagging; it's simply there when you open it. INTERACTIVE SKY DIAL Quickly identify celestial bodies overhead based on your current time and estimated position. Prepare your star sights before twilight. Privacy Policy: https://timespaceatlas.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tempora Romae4 screens
AstroNav SkyDial4 screens

Verdict

The call

Tempora Romae and AstroNav SkyDial are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Tempora Romae sells 1 one-off in-app purchase and AstroNav SkyDial sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

ScorecardNo meaningful differences
Tempora Romae versus AstroNav SkyDial: the parameters behind the verdict, then further details
ParameterTempora RomaeAstroNav SkyDial
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS17.617.0 — better
Further details — not scored
Size18 MB106 MB
Age rating4+4+
DeveloperØyvind BergetTimespace Atlas, LLC

In-app purchases

1 purchases

Tempora Romae

One-time1
  • Tempora Romae Senator$3.99
2 purchases

AstroNav SkyDial

Subscriptions1
  • AstroNav Pro Annual$1.991 Year
One-time1
  • AstroNav Pro (Lifetime)$9.99

Questions

Is Tempora Romae free?
Tempora Romae is free to download, with in-app purchases available.
Is AstroNav SkyDial free?
AstroNav SkyDial is free to download, with in-app purchases available.
Do Tempora Romae or AstroNav SkyDial have ads?
Neither Tempora Romae nor AstroNav SkyDial shows ads.
Which is updated more often, Tempora Romae or AstroNav SkyDial?
Tempora Romae ships an update every 2 weeks, and AstroNav SkyDial every 2 weeks. Most recently, Tempora Romae was updated on October 8, 2026 and AstroNav SkyDial on October 12, 2026.

Other comparisons