Comparison

Cubic vs Riff Calendar

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

Head to head
About

Cubic

Transform passive reading into active learning by saving articles, organizing content, and creating reviewable flashcards from your highlights. Discover new material through RSS feeds or curated collections and track your learning progress over time.

Highlights
  • Discover content via RSS feeds and curated collections
  • Save articles and organize into a personal library
  • Add notes and highlights to saved content
  • Convert highlights into reviewable flashcards
  • Track reading habits and learning trends
  • Organize content for recall
Read full description

Cubic - Turn what you read into what you remember Cubic helps you move from passive browsing to active learning. Discover great content, save what matters, and revisit it in a way that actually sticks. DISCOVER WITH INTENT Follow RSS feeds or explore curated collections across topics like tech, design, and business. COLLECT WHAT MATTERS Save articles, organize them into your personal library, and add notes or highlights as you read. REFLECT TO REMEMBER Your highlights become reviewable flash cards, helping you retain ideas over time. A SMOOTHER READING FLOW Swipe through articles and uncover interesting ideas without juggling tabs. BUILD YOUR KNOWLEDGE SYSTEM All your content, notes, and insights—organized for recall, not just storage. TRACK YOUR LEARNING See reading habits and trends to understand what you consume and how you grow. If you read a lot but forget most of it, Cubic gives you a simple system: discover → collect → reflect. ---- Support: Check out https://cubic.surf/faq or contact feedback@cubic.surf Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://cubic.surf/privacy

About

Riff Calendar

This calendar app allows you to zoom in and out of your schedule, viewing a half-year at a glance or a single day hour-by-hour. Events can be edited directly on the calendar, and it integrates with your existing device calendars without requiring an account.

Highlights
  • Zoomable calendar views
  • Direct event editing
  • Integrated weather forecasts
  • Daylight shading
  • Works with existing calendars
  • Home and Lock Screen widgets
Features
Read full description

Riff is a calendar that you zoom. Pinch your fingers together and half a year fits on screen. Spread them and a single day opens, hour by hour. There are no month, week and day views to switch between. EVERY STEP OF THE ZOOM IS A WORKING CALENDAR Zoom out to find a free weekend, zoom in to pick the hour. The day you were looking at stays on screen the whole way. EDIT ON THE CALENDAR ITSELF Hold a free slot and type a title. Slide an event to a new hour, or carry it to another week. The days around it stay in view while you edit. WEATHER AND DAYLIGHT Each day shows its forecast, and a faint shade covers the hours between sunset and sunrise where you are. Turn them on in Riff’s settings. YOUR CALENDARS, NO ACCOUNT Riff works on the calendars already on your iPhone: iCloud, Google, Exchange and the rest. There is nothing to import and no account, and no data is collected. Reminders stand beside your events. ALSO Home Screen and Lock Screen widgets, alerts, repeats, search, time zones, Siri and Shortcuts, 30 languages. GOOD TO KNOW Riff is for iPhone and needs iOS 26 or later. You can answer invitations but not send them. PRICE Free for three weeks with everything included. Then choose a monthly or yearly subscription, or a one-time purchase. Every option unlocks all of Riff and works with Family Sharing. The prices for your country are under In-App Purchases. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. You manage them in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://riffcalendar.com/privacy/ Riff is made by one developer, Magnus Rex, in Sweden. Write to hello@riffcalendar.com.

Screenshots

Cubic4 screens
Riff Calendar4 screens

Verdict

The call

The clearest difference is rating: Cubic at 5.0 against Riff Calendar's 4.0. Cubic also leads on iOS requirement (18.5 vs 26.0). On price, ratings volume, update cadence and ads 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. Cubic sells 2 in-app purchases, starting at $3.99 per month and Riff Calendar sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cubic holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Cubic ships an update every 6 days, Riff Calendar every 5 days. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

Scorecard2 real differences · 8 level
Cubic versus Riff Calendar: the parameters behind the verdict, then further details
ParameterCubicRiff Calendar
PriceFreeFree
Rating5.0 (2 ratings) — better4.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 6 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS18.5 — better26.0
Further details — not scored
Size63 MB13 MB
Age rating17+4+
DeveloperARPIT MATHURKJELL MAGNUS REX

Customer experience

Cubic

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Riff Calendar

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Cubic

Subscriptions2
  • Cubic Pro Monthly$3.991 Month
  • Cubic Pro Yearly$14.991 Year
3 purchases

Riff Calendar

Subscriptions2
  • Monthly$2.991 Month
  • Yearly$24.991 Year
One-time1
  • Lifetime$49.99

Questions

Is Cubic free?
Cubic is free to download, with in-app purchases available.
Is Riff Calendar free?
Riff Calendar is free to download, with in-app purchases available.
Which has better reviews, Cubic or Riff Calendar?
Cubic is rated higher. Cubic averages 5.0 out of 5 from 2 ratings, while Riff Calendar averages 4.0 from 1 ratings.
Do Cubic or Riff Calendar have ads?
Neither Cubic nor Riff Calendar shows ads.
Which is updated more often, Cubic or Riff Calendar?
Cubic ships an update every 6 days, and Riff Calendar every 5 days. Most recently, Cubic was updated on October 14, 2026 and Riff Calendar on October 21, 2026.

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