Comparison

NumDays2 vs Shelly Smart Control

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

Head to head
About

NumDays2

This app helps you keep track of important dates like birthdays, anniversaries, and holidays. It offers customizable countdowns and smart categorization to ensure you never miss a significant event.

Highlights
  • Countdown to birthdays, anniversaries, holidays
  • Organize events with smart tags
  • Quick overview of upcoming events
  • Full-screen countdown view
  • Customizable event tracking (years, months, days, seconds)
Features
Read full description

NumDays2 – Countdowns That Matter Never miss a birthday, anniversary, holiday, or milestone again. NumDays keeps all your important events beautifully organized and always at your fingertips. Why you’ll love NumDays? Stay Ready – Count down to birthdays, anniversaries, holidays, and custom events. Smart Tags – Organize events with simple, colorful categories. Quick Overview – See all upcoming events in one glance. Full-Screen Countdown – Focus on one event with a big, clear preview. Customizable – Add your own events and track time in years, months, weeks, days, or even seconds. Perfect for: Birthdays & Anniversaries Family & Friends’ Events Vacations & Holidays Work Deadlines & Milestones Any day that matters to you NumDays makes it simple to stay organized and never lose track of the moments that matter most. Download NumDays today and start counting down to your next big day!

About

Shelly Smart Control

Remotely monitor and control smart home devices from anywhere, either through the cloud or your local network. Manage lights, appliances, and sensors, and create custom automation scenes. Supports Wi-Fi, Bluetooth, and LAN connectivity for seamless integration.

Highlights
  • Remote device control
  • Local network control
  • Device monitoring
  • Custom scheduling
  • Scene creation
  • Energy consumption monitoring
  • Real-time alerts
Features
Read full description

This app offers the possibility to control all Shelly devices remotely. You can monitor and control your devices from anywhere (by using the cloud option) or, if you do not want the Cloud option, you will still be able to monitor and control your devices from within your local network. Shelly devices do not need to be connected to the cloud or to send data there. The Shelly Home Automation portfolio includes a variety of relay switches, sensors, plugs, bulbs, and other controllers, all connected and controlled through your Wi-Fi network. The new Shelly Plus and Shelly Pro lines of products additionally support Bluetooth connectivity for faster device inclusion and communication, and the new Shelly Pro line offers LAN and Wi-Fi usage simultaneously. The entire Shelly portfolio is available at https://shelly.cloud/ Shelly devices are suitable to control lights, garage doors, curtains, window blinds, or other appliances, trigger actions based on certain parameters from sensor devices. Devices provide near real time notification on changes of the parameters they are measuring - energy consumption, temperature other environment values. All Shelly devices have: - Embedded Web server - Wi-Fi control and connectivity - APIs for observation and control A user account is required to access, include, and control Shelly devices through the application. Once Shelly account is registered, you can: - Connect the devices to an existing W-Fi network or use their Access Point mode locally to control other Shelly devices; - Include, manage, and operate as many Shelly devices as you need; - Configure devices and manage individual settings on every device; - Configure custom scheduling for automatic actions; - Create personalized rooms for more convenient organising and control of the devices; - Define custom Groups of devices to control multiple devices with one command within the app; - Build simple and complex scenes by combining Shelly devices to trigger certain actions in your home automation; - Monitor current and past electrical power consumption of the electrical circuit(s) and loads (for Shelly devices equipped with Power-measuring capabilities); - Build complex automation solutions for improved energy and operational efficiency; - Receive real time alerts and notifications based on your preference. Shelly devices are compatible with other widely used both local and cloud-based home automation platforms like Google Home or Alexa.

Screenshots

NumDays23 screens
Shelly Smart Control4 screens

Verdict

The call

The clearest difference is review sentiment: NumDays2 at 100% against Shelly Smart Control's 47%. NumDays2 also leads on rating (5.0 vs 3.2). Shelly Smart Control's advantage is update cadence (every 2 weeks vs every 68 months) and ratings volume (87 vs 1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NumDays2 holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: Shelly Smart Control has 87 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of NumDays2's written reviews are positive against 47% of Shelly Smart Control's.

UpkeepUpdate frequency

NumDays2 ships an update every 68 months, Shelly Smart Control every 2 weeks. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.

Scorecard6 real differences · 4 level
NumDays2 versus Shelly Smart Control: the parameters behind the verdict, then further details
ParameterNumDays2Shelly Smart Control
PriceFreeFree
Rating5.0 (1 ratings) — better3.2 (87 ratings)
Positive reviews100.0% of reviews — better47.3% of reviews
Number of ratings187 — better
Update frequencyEvery 68 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.615.0 — better
Further details — not scored
Size1 MB255 MB
Age rating4+4+
DeveloperHlib UstymenkoSHELLY EUROPE EOOD

Customer experience

NumDays2

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

Shelly Smart Control

All ratings87 ratings
Positive51.7%
Neutral9.2%
Negative39.1%
Written reviews146 reviews
Positive47.3%
Neutral13.0%
Negative39.7%

In-app purchases

None

NumDays2

No in-app purchases

None

Shelly Smart Control

No in-app purchases

Questions

Is NumDays2 free?
NumDays2 is free to download, with no in-app purchases.
Is Shelly Smart Control free?
Shelly Smart Control is free to download, with no in-app purchases.
Which has better reviews, NumDays2 or Shelly Smart Control?
NumDays2 is rated higher. NumDays2 averages 5.0 out of 5 from 1 ratings, while Shelly Smart Control averages 3.2 from 87 ratings.
Do NumDays2 or Shelly Smart Control have ads?
Neither NumDays2 nor Shelly Smart Control shows ads.
Which is updated more often, NumDays2 or Shelly Smart Control?
NumDays2 ships an update every 68 months, and Shelly Smart Control every 2 weeks. Most recently, NumDays2 was updated on October 11, 2026 and Shelly Smart Control on October 17, 2026.

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