Cubic vs Riff Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- Zoomable calendar views
- Direct event editing
- Integrated weather forecasts
- Daylight shading
- Works with existing calendars
- Home and Lock Screen widgets
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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
Verdict
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
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.
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.
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.
| Parameter | Cubic | Riff Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 6 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 63 MB | 13 MB |
| Age rating | 17+ | 4+ |
| Developer | ARPIT MATHUR | KJELL MAGNUS REX |
Customer experience
Cubic
Riff Calendar
In-app purchases
Cubic
- Cubic Pro Monthly$3.991 Month
- Cubic Pro Yearly$14.991 Year
Riff Calendar
- Monthly$2.991 Month
- Yearly$24.991 Year
- Lifetime$49.99








