Comparison

MoonScope vs DiceRoller+

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

Head to head
About

MoonScope

Features
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Typically, a lunar calendar shows the phases of the moon at noon on that day, as viewed from the center of the Earth. As a result, the moon phase calendar does not usually take into account the observer's location or the time of observation, and it is normal for the moon's appearance in the sky to not match the actual moon phase in the sky. MoonWatch is an app whose primary goal is to recreate the moon as it actually appears in the sky when you look up at it. That means it accurately recreates the sky conditions (sunrise, sunset, tri-light) at that location and time, the phases of the moon, moonrise, moonset, and the angle of the moon as it changes over time in 3D space. This means that the moon on the screen will match the actual moon in the sky, which you can easily find by using the tracking function to adjust the angle of your iPhone or iPad. With a premium subscription, you can also easily find the moon's appearance in places other than your current location. Normally, the lunar calendar shows the phases of the moon at noon on that day, but you can also freely change the time to obtain the lunar phase. Enjoy this simple yet highly functional lunar calendar that flexibly responds to a variety of needs by accurately recreating the solar system in 3D space.

About

DiceRoller+

Features
Read full description

DiceRoller+ turns your phone into a full-featured dice roller for tabletop RPGs and board games. - Build a pool from d4, d6, d8, d10, d12, d20 and d100 with a single tap, e.g. 3d6+2, and roll them all at once. - Roll by tapping the button or simply shaking your phone, with a spinning number animation, vibration and a click. - Add custom dice with any number of sides (d3, d30, and beyond) and adjust a modifier with + / -. - Save your favorite rolls as presets and reuse them in one tap. - Every roll is saved to history; d20 criticals and fumbles are highlighted. - Private by design: no account, no login, no cloud. Everything stays on your device, fully offline. Perfect for D&D, Call of Cthulhu, board games and quick family games. Available in English and Japanese.

Screenshots

MoonScope4 screens
DiceRoller+4 screens

Verdict

The call

The clearest difference is in-app purchases: DiceRoller+ at none against MoonScope's 1. DiceRoller+ also leads on ads (none vs shown) and update cadence (weekly vs monthly). On price, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. MoonScope sells 1 one-off in-app purchase. DiceRoller+ asks for nothing beyond the download.

UpkeepUpdate frequency

MoonScope ships an update monthly, DiceRoller+ weekly. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

Scorecard3 real differences ยท 3 level
MoonScope versus DiceRoller+: the parameters behind the verdict, then further details
ParameterMoonScopeDiceRoller+
PriceFreeFree
Update frequencyMonthlyWeekly โ€” better
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.0 โ€” better17.0
Further details โ€” not scored
Size161 MB23 MB
Age rating4+4+
DeveloperHajime SuzukiYuki Okawa

In-app purchases

1 purchases

MoonScope

One-time1
  • No Ads$4.99
None

DiceRoller+

No in-app purchases

Questions

Is MoonScope free?
MoonScope is free to download, with in-app purchases available.
Is DiceRoller+ free?
DiceRoller+ is free to download, with no in-app purchases.
Do MoonScope or DiceRoller+ have ads?
MoonScope shows ads; DiceRoller+ does not.
Which is updated more often, MoonScope or DiceRoller+?
MoonScope ships an update monthly, and DiceRoller+ weekly. Most recently, MoonScope was updated on October 10, 2026 and DiceRoller+ on October 24, 2026.

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