Comparison

PagerDuty vs Kalta

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

Head to head
About

PagerDuty

This app helps organizations manage digital operations and resolve incidents quickly. It provides real-time alerts, incident response tools, and team scheduling to ensure seamless customer experiences.

Highlights
  • Push notification alerts with custom sounds
  • Respond to incidents (acknowledge, resolve, reassign)
  • View incident details and resolution timelines
  • Manage on-call schedules and team overrides
  • Create new incidents and loop in responders
  • Execute custom actions on incidents
Features
Read full description

PagerDuty, Inc. (NYSE:PD) is a leader in digital operations management. In an always-on world, organizations of all sizes trust PagerDuty to help them deliver a perfect digital experience to their customers, every time. Through its SaaS-based platform, PagerDuty arms developers, IT operations, support, security, and business leaders to prevent and resolve incidents when seconds matter. Over 12,000 businesses including GE, Vodafone, Box, and American Eagle Outfitters rely on PagerDuty to continuously improve their digital operations. PagerDuty for iOS allows you to: * Receive unlimited push notification alerts and set custom sounds for alerts * Easily access and respond to open incidents (acknowledge, resolve, or reassign) * View incident details, grouped alerts, and resolution timelines at a glance * View your on-call timeline and team schedules, and book overrides for yourself or your teammates * Access a contact list of all users in your account and their contact information * Create new incidents directly from the mobile app * Loop in responders for additional help * Execute custom actions (like restarting servers, running diagnostics, etc.) on incidents NOTE: A PagerDuty user account is required to use this application. Some features’ availability depends on your PagerDuty plan.

About

Kalta

Features
Read full description

Kalta is a simple, private home inventory app for tracking emergency supplies in real boxes in your home. Create a warehouse. Print QR labels for your boxes. Scan barcodes to fill in product info automatically. Add expiration dates. Kalta sorts everything by urgency, reminds you before items expire, and tells you how many days of food and water your household actually has. Built for people who actually rotate their stock. KEY FEATURES • Boxes with QR labels — Stick a QR label on each physical box. Scan it to jump straight to its contents. • Barcode scanning — Fills in product name, category, calories, and weight from the Open Food Facts database. Custom entries for anything not in the database. • Expiration tracking — Color coding by urgency (expired, critical, soon, OK). Items and boxes are sorted by urgency on the main screen. • Local reminders — Configurable notifications 30 days, 7 days, 1 day before, and on the expiry day. No servers involved — notifications are scheduled on your device. • Readiness dashboard — Tell Kalta who you're feeding (kcal and water per person, per day). Kalta computes how many days of food and water your inventory actually covers, against the goal you set. • Emergency kit checklist — A curated FEMA-style 24-item kit (water, food, first aid, light & power, tools, sanitation, documents). Tracks lifecycle from missing → on shopping list → purchased → stocked. • Shopping list with restock — Add items manually or let Kalta auto-suggest from what's expired, low on stock, or missing from your emergency kit. Check items off in the store; restock them into a box in two taps. • Notifications bell — One in-app alerts surface in every screen header. Lights up only when readiness is below goal, items are expiring, or purchases are waiting to be restocked. • Share with family — Invite your partner or family members to a warehouse. Everyone sees updates in real time, including the shopping list and readiness. • Offline-first — Everything works without internet. Changes sync when you're back online. • Peer-to-peer sync — Two iPhones can exchange data directly over Bluetooth and WiFi, no network required. • AI-assisted product recognition — Optional. Bring your own Anthropic API key and let Claude identify products from a photo. You're in control of cost and privacy. • Print QR labels — Brother Bluetooth label printer support, or share the QR as an image to print anywhere. PRIVACY No ads. No tracking. No analytics. No crash reporting. No third-party SDKs. Data is stored on your iPhone and synced to an encrypted database hosted in Ireland (EU). Only you and people you explicitly invite to a warehouse can see your inventory. Apple Sign In is the only account system — no new passwords to manage. WHAT KALTA IS NOT Kalta is a personal inventory tool. It is not a substitute for professional advice on emergency preparedness, food storage safety, or medication rotation. Always verify product-specific information from the manufacturer. SUPPORT Email: ondrej.michalcik@gmail.com Website: https://kalta.app Privacy Policy: https://kalta.app/privacy Terms of Service: https://kalta.app/terms

Screenshots

PagerDuty4 screens
Kalta4 screens

Verdict

The call

The clearest difference is iOS requirement: Kalta at 15.1 against PagerDuty's 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.

UpkeepUpdate frequency

PagerDuty ships an update weekly, Kalta every 6 days. The most recent releases landed on November 1, 2026 and September 26, 2026 respectively.

Scorecard1 real difference · 9 level
PagerDuty versus Kalta: the parameters behind the verdict, then further details
ParameterPagerDutyKalta
PriceFreeFree
Rating4.8 (5.2K ratings) — better—
Positive reviews24.7% of reviews—
Number of ratings5.2K — better—
Update frequencyWeeklyEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size79 MB66 MB
Age rating4+4+
DeveloperPagerDuty Inc.Ondrej Michalcik

Bugs and requests

PagerDuty

Reported bugs

19 issues
  • Font sizing issue
  • Unable to change alert sound
  • Cannot change settings
  • Couldn't acknowledge incident
  • Crashes on startup
Show 14 more
  • Crashes frequently
  • Unresponsive after alerts
  • Vibration and sound settings not obeyed
  • App unresponsive after alert
  • Login Fail
  • Major bug in update
  • Logs out me every few weeks
  • Crashes
  • Crashes
  • Crashes
  • Useful...now broken
  • Still buggy
  • Couldn't acknowledge incident
  • Couldn't acknowledge incident

Requested features

5 requests
  • Add ability to use custom sound for emergencies
  • Add ability to use custom sound for emergencies
  • Add ability to put services in maintenance mode
  • Improve Resolved Incidents view to show oldest first
  • Provide easy way to allow calls/texts during DND

Kalta

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

PagerDuty

No in-app purchases

None

Kalta

No in-app purchases

Questions

Is PagerDuty free?
PagerDuty is free to download, with no in-app purchases.
Is Kalta free?
Kalta is free to download, with no in-app purchases.
Do PagerDuty or Kalta have ads?
Neither PagerDuty nor Kalta shows ads.
Which is updated more often, PagerDuty or Kalta?
PagerDuty ships an update weekly, and Kalta every 6 days. Most recently, PagerDuty was updated on November 1, 2026 and Kalta on September 26, 2026.

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