83
BU Score
Excellent
Calendars: Schedule Planner
✍️ BU Analytics Review
“
Calendars: Schedule Planner is an iOS app from Readdle Technologies Limited in the Productivity category, currently rated 4.7★ across 119,121 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 83 — Excellent (strong product-market fit). For a Productivity app, that means strong product-market fit.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 14 of 14 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| High install base (119,121 ratings)METRIC | +$12,000 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (13y old)METRIC | +$1,500 | |
| Multilingual (10 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| support teamREVIEW | +$900 | |
| priceyREVIEW | −$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26
Apr 26
May 26
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 375 MB🔞 4+📱 iOS 17.5+🔖 v5.37.27🔄 updated 5d ago🌐 EN, FR, DE, IT, JA +5📂 Productivity💰 Paid🚀 Launched 2013 (13y old)
📝 About this app
Calendars by Readdle is the all-in-one calendar, task manager, daily planner, and habit tracker — seamlessly working across all your Apple devices: Mac, iPhone, iPad, and Apple Watch.
Plan your day, build better habits, boost productivity, and stay organized with powerful features and smooth sync between all your devices.
What you can do with Calendars:
• View and manage your calendar with daily, weekly, and monthly views
• Create events, set reminders, and never miss important dates
• Use the built-in agenda planner to focus on what matters most
• Organize your to-do list and manage your tasks with ease
• Quickly add events or to-do items using natural language
• Build routines and track your habits to stay consistent
• Take a guided productivity course to improve time management and focus
• Sync across devices with Google Calendar, iCloud, and more
• Customize your planner calendar with color coding and widgets
• Join Zoom, Google Meet, or GoToMeeting directly from your calendar
• Stay in control of your time, wherever you are
Whether you're planning a busy workday, building new habits, or working on personal growth, Calendars brings everything together to help you own your time — across all your Apple devices.
Privacy Policy: https://readdle.com/calendars/legal/privacy
Terms of Service: https://readdle.com/calendars/legal/terms
Have questions, comments, or issues? Don’t hesitate to reach out to us at http://readdle.com/contact
Plan your day, build better habits, boost productivity, and stay organized with powerful features and smooth sync between all your devices.
What you can do with Calendars:
• View and manage your calendar with daily, weekly, and monthly views
• Create events, set reminders, and never miss important dates
• Use the built-in agenda planner to focus on what matters most
• Organize your to-do list and manage your tasks with ease
• Quickly add events or to-do items using natural language
• Build routines and track your habits to stay consistent
• Take a guided productivity course to improve time management and focus
• Sync across devices with Google Calendar, iCloud, and more
• Customize your planner calendar with color coding and widgets
• Join Zoom, Google Meet, or GoToMeeting directly from your calendar
• Stay in control of your time, wherever you are
Whether you're planning a busy workday, building new habits, or working on personal growth, Calendars brings everything together to help you own your time — across all your Apple devices.
Privacy Policy: https://readdle.com/calendars/legal/privacy
Terms of Service: https://readdle.com/calendars/legal/terms
Have questions, comments, or issues? Don’t hesitate to reach out to us at http://readdle.com/contact
🆕 What's New · v5.37.27
This update brings a refreshed look and added reliability to Calendars. We’ve updated the app icon to better match the current Calendars experience while keeping it familiar and easy to recognize. We’ve also improved Google Calendar sync reliability, including a fix for an issue that could cause recurring events to disappear after a sync problem. Update now and let us know how Calendars is working for you!
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Calendars: Schedule Planner
- Developer
- Readdle Technologies Limited
- Bundle ID
- com.readdle.CalendarsLite
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- EN, FR, DE, IT, JA, PT, RU, ZH, ES, UK
Company
- Website
- Not found
- Tagline
- Igniting productivity for individuals and teams
- Description
- Essential productivity apps that redefine what's possible on Apple devices
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- $200.0K ($200.0K – $300.0K)AI medium
- AI annual estimate
- $2.4M/yr
- ML model estimate / mo
- $17.0K/mo
- Top-grossing rank
- 🇩🇪#35 /100 🇨🇦#66 /100 🇫🇷#71 /100 🇬🇧#85 /100 🇦🇺#91 /100 🇧🇷#100 /100
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- https://twitter.com/intent/tweet?original_referer=https%3A%2F%2Freaddle.com%2F&source=tweetbutton&text=Readdle+-+The+Best+Productivity+Apps%21+https%3A%2F%2Freaddle.com&url=
- https://www.linkedin.com/shareArticle?mini=true&url=readdle.com
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://readdle.com/blog
- Press / News
- Not found
Contacts & Socials
- Socials
- facebook · instagram · linkedin · twitter · youtube
- Not found
- Phone
- Not found
- Contact page
- https://readdle.com/support
- About page
- https://readdle.com/about
✨AI Revenue EstimateCONFIDENCE: MEDIUM
The iOS app "Calendars: Schedule Planner" by Readdle Technologies Limited is estimated to generate approximately $200,000 in monthly revenue, with a potential high of $300,000. This translates to an estimated annual revenue of $2.4 million.
Sources mentioned: Sensor Tower, Adapty
⭐Recent App Store Reviews49 latest · avg 3.55★ · 49.0% 5★ · 24.5% 1★
5★24 (49%)
4★6 (12%)
3★4 (8%)
2★3 (6%)
1★12 (24%)
+140 ratings/week
Praise: love ×11 great ×6 best ×5 recommend ×2 fantastic ×2Complaints: subscription ×4 scam ×2 crash ×2 bug ×2 worst ×1
Top positive
★★★★★ Years of use
I have used Calendar for over a decade. I like the options, several color choices, banners and personalized calendars. A great App for iPhone and iPad…
★★★★★ Birthdays
I love my calendar 📆 but I wish it would populate the birthdays to the following year. 🥰 Also, that my events of each day could be viewed at a glance.…
Top negative
★☆☆☆☆ Deleted all my events
I opened up my calendar and all of my plans were set, everything was beautifully organized, i added in a few more dates, it was all working fine. The next day? Everything was wiped. There was literally nothing, not even birthdays, and since…
★☆☆☆☆ Google advertising
I loved this app until google bought it. Now I get appts scheduled on my calendar for two-3 weeks of one single appointment. Then I have to send a response to whoever is advertising that I’m not going. It’s ridiculous and so very google. Go…
📈Ratings growth119,121 ratings+35% lifetimeShow 3-year history estimate ▾
Tracked (41 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution●Top 10●Top 30●Top 60
🌍Top Countries — Grossing Rank6 countries
🇩🇪DE#35 /100
🇨🇦CA#66 /100
🇫🇷FR#71 /100
🇬🇧GB#85 /100
🇦🇺AU#91 /100
🇧🇷BR#100 /100
📊Category Rank Trajectory#35 now · best #31 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀Version Release Timeline2 releases tracked
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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