Comparison

Smart vs Nextcloud Calendar

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

Head to head
About

Smart

This SIP client connects to various telephone systems, offering call management features like hold, mute, and loudspeaker. It includes a phone book, call history, and customizable codecs for efficient communication on the go.

Highlights
  • Simple setup
  • IPv4 and IPv6 support
  • Call hold, mute, and loudspeaker
  • Phone book and call history
  • Customizable codecs
  • Bluetooth support
  • Light & dark mode
Features
Read full description

Smart-SIP-Phone: The SIP client for every SIP telephone system Smart-SIP-Phone is the universal solution for all SIP telephone systems - whether Asterisk, Freeswitch, Auerswald Comtrexx or proprietary systems. Simple, flexible and powerful - with Smart-SIP-Phone you remain optimally reachable and productive. Highlights: - Simple setup - State of the art technology: IPv4 and IPv6. Powerful call functions: - Hold - Mute - Loudspeaker - Selection of the playback device - Parallel calls - Numeric keypad Other functions: - Phone book - Call history - Customizable codecs - Volume control - Bluetooth support - Light & dark mode - 50 free call pushes per month * * Required to receive incoming calls when the app is in the background or your smartphone is locked. For companies: Smart-SIP-Phone is also available as a desktop version. On request, the app can be individually branded and adapted to the needs of your company. Available on request: Seamless integration with ERP and CRM systems. For resellers: The softphone can be branded, customized and discounted as a white-label solution on request - the ideal solution for resellers who want to offer their customers a personalized communication solution. Why Smart-SIP-Phone? Smart-SIP-Phone has been specially developed for all types of SIP telephone systems. It offers a reliable, user-friendly solution for efficient communication - wherever you are. Download now and experience the full power of Smart-SIP-Phone! FAQ Why does the app connect to the EDNT servers? The app downloads the images and data of the supported providers from the EDNT servers at https://nrm.ednt.de. This content is not permanently integrated into the app so that our partners have the opportunity to make changes to the data. #Softclient #SIPclient #Softphone #UCC-Client

About

Nextcloud Calendar

Manage your Nextcloud calendars with a simple mobile app. View, create, and organize events with real-time synchronization across multiple instances. Supports creating meetings with video conference links.

Highlights
  • Automatic calendar detection
  • View, create, and manage events
  • Real-time synchronization
  • Multi-account support
  • Create meetings with video conference links
  • Switch between multiple Nextcloud instances
Read full description

Manage your Nextcloud calendars from a mobile app designed to keep things simple. Nextcloud Calendar automatically detects the calendars available on your instance and lets you easily view, create, and organize your events. Changes are synced in real time to keep your schedule up to date, whether you use one or multiple Nextcloud instances. Key features: • Automatic calendar detection • View, create, and manage events • Real-time synchronization • Multi-account support • Create meetings with video conference links via Nextcloud Talk Using multiple Nextcloud servers? Add your accounts and easily switch between instances. If Nextcloud Talk is enabled on your instance, you can generate a video conference link directly from the app and attach it to your event. Nextcloud Calendar is designed for users, teams, and organizations that want mobile access to their Nextcloud calendars through a clear, modern experience built for everyday use. A compatible Nextcloud instance is required. Some features may depend on your server configuration and the apps enabled by your administrator.

Screenshots

Smart3 screens
Nextcloud Calendar4 screens

Verdict

The call

The clearest difference is rating: Smart at 5.0 against Nextcloud Calendar's 4.7. Nextcloud Calendar's advantage is ratings volume (3 vs 1) and iOS requirement (16.4 vs 18.0). On price, update cadence, ads and in-app purchases 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

Smart holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Smart ships an update every 3 weeks, Nextcloud Calendar every 2 weeks. The most recent releases landed on October 7, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Smart versus Nextcloud Calendar: the parameters behind the verdict, then further details
ParameterSmartNextcloud Calendar
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size6 MB52 MB
Age rating4+4+
DeveloperEDNT GmbHSoluce Technologies

Customer experience

Smart

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Nextcloud Calendar

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Smart

No in-app purchases

None

Nextcloud Calendar

No in-app purchases

Questions

Is Smart free?
Smart is free to download, with no in-app purchases.
Is Nextcloud Calendar free?
Nextcloud Calendar is free to download, with no in-app purchases.
Which has better reviews, Smart or Nextcloud Calendar?
Smart is rated higher. Smart averages 5.0 out of 5 from 1 ratings, while Nextcloud Calendar averages 4.7 from 3 ratings.
Do Smart or Nextcloud Calendar have ads?
Neither Smart nor Nextcloud Calendar shows ads.
Which is updated more often, Smart or Nextcloud Calendar?
Smart ships an update every 3 weeks, and Nextcloud Calendar every 2 weeks. Most recently, Smart was updated on October 7, 2026 and Nextcloud Calendar on October 28, 2026.

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