Comparison

Salto KS vs Alertcal

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

Head to head
About

Salto KS

Manage business access with keyless entry and remote control. Block or unblock users, open locks from anywhere, and monitor activity. Secure your premises with biometric authentication.

Highlights
  • Keyless entry
  • Remote lock management
  • User tag blocking/unblocking
  • Remote lock opening
  • Activity monitoring
  • Biometric authentication
Features
Read full description

Salto KS | Smart access control, managed from anywhere. Salto KS puts cloud-based access control in your pocket. Whether you operate a single office or manage multiple sites worldwide, the Salto KS app gives you real-time control over every door, user, and location. Keyless entry made effortless • Unlock doors with your phone by tapping the lock. No mechanical keys required. • Open doors remotely, anytime, from anywhere. • Securely verify and unlock with Face ID or Touch ID. Powerful administration in the app • Create users and assign, update, or block credentials on the go. • Grant and manage guest access with customizable permissions, check-in/check-out dates, and time-based access schedules. • Instantly block or unblock tags and digital keys if credentials are lost or stolen. • Keep authorized users moving during network outages with Offline Access credentials. Real-time monitoring and insights • Track access activity across your sites with 24/7 event monitoring. • Receive notifications for important events, including rejected entries, doors left open, and low-battery warnings. • Monitor entries, incidents, and lock status across all your sites in real time.

About

Alertcal

Features
Read full description

Never miss an important event again. Alertcal transforms your calendar notifications into real alarms that demand your attention. Instead of a quiet push notification that disappears, you get a powerful alarm before your event begins. Meetings. School pickups. Workouts. Flights. Deadlines. If it is on your calendar, you will be ready. How it works: Connect your existing calendar Choose how many minutes before an event you want to be alerted Receive a loud, persistent alarm that makes sure you act Features: Custom alarm timing for each event Strong alerts that stand out from normal notifications Snooze support Works with your current calendar setup Clean, simple interface Stop relying on notifications you ignore. Start using alarms that keep you accountable. Alertcal helps professionals, parents, students, and busy people stay prepared and on time. Be early. Be prepared. Be aware.

Screenshots

Salto KS4 screens
Alertcal2 screens

Verdict

The call

The clearest difference is price: Salto KS at Free against Alertcal's $1.99. Salto KS also leads on device support (4 vs 1) and iOS requirement (15.6 vs 26.0). On 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

Salto KS is free to download; Alertcal costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Salto KS ships an update monthly, Alertcal every 3 weeks. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Salto KS versus Alertcal: the parameters behind the verdict, then further details
ParameterSalto KSAlertcal
PriceFree — better$1.99
Rating3.8 (163 ratings) — better—
Positive reviews18.3% of reviews—
Number of ratings163 — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size103 MB15 MB
Age rating4+4+
DeveloperSalto CloudWorks B.V.Scott Foster

Bugs and requests

Salto KS

Reported bugs

39 issues
  • App crashes on startup
  • Widget does not work
  • Login/authentication fails
  • Digital key feature not working
  • Remote opening removed/not working
Show 34 more
  • QR scanner not working
  • App closes when opening
  • Lock is offline
  • App crashes after login
  • Widget doesn't appear
  • Payment cards appear while using widget
  • Texts are cut off in German
  • Help/support webpage is 404
  • Event logs raise privacy concerns
  • App doesn't refresh locks' status
  • Apple Pay takes over when trying to unlock
  • Button does not respond for tap to activate
  • App doesn't recognize watch
  • Locks disappear after update
  • App doesn't launch
  • Cannot add key to Apple Wallet
  • App is unusable after update
  • Mobile Key unavailable
  • App doesn't work on new phone after changing
  • Error upon errors
  • Mobile Key requires unlocking phone every time
  • Key fob failed
  • Battery needs annual replacement
  • Website is slow to unresponsive
  • Link to eKey in Apple Wallet is 404
  • Report a problem link doesn't work
  • App doesn't work with multiple devices near lock
  • App is slow to load data
  • App is slow to open
  • App is too slow for unlocking doors
  • Validation with fingerprint after phone unlock is a delay
  • App doesn't do what was paid for
  • Password reset link requires forgotten password
  • App is entirely in English

Requested features

20 requests
  • Add Apple Wallet support
  • Add Apple Watch app/integration
  • Add widget support for iOS 15/16
  • Improve remote opening functionality
  • Add intercom/invite feature
Show 15 more
  • Improve login process
  • Add Touch ID/Face ID support
  • Make app available in German
  • Provide a physical key alternative
  • Improve app performance and speed
  • Fix widget issues
  • Add support for older iOS versions
  • Integrate with Apple Wallet for seamless unlocking
  • Improve customer support responsiveness
  • Add toolkit button for widget
  • Fix QR scanner functionality
  • Provide a support line for lockouts
  • Allow changing app language
  • Fix password reset process
  • Add API access for installers

Alertcal

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Salto KS

No in-app purchases

None

Alertcal

No in-app purchases

Questions

Is Salto KS free?
Salto KS is free to download, with no in-app purchases.
Is Alertcal free?
Alertcal costs $1.99, with no in-app purchases.
Do Salto KS or Alertcal have ads?
Neither Salto KS nor Alertcal shows ads.
Which is updated more often, Salto KS or Alertcal?
Salto KS ships an update monthly, and Alertcal every 3 weeks. Most recently, Salto KS was updated on November 1, 2026 and Alertcal on October 28, 2026.

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