Comparison

Kolay vs Oncallz

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

Head to head
About

Kolay

This HR software allows employees to submit leave, expense, and overtime requests from their mobile devices. HR managers can efficiently approve or deny these requests on the go, streamlining HR processes.

Highlights
  • Submit leave requests
  • Submit expense reports
  • Submit overtime requests
  • Approve/deny requests
  • View company events
  • Contact colleagues
Features
Read full description

Kolay is an all-in-one HR software focused on mobile solutions. With Kolay mobile app, employees can request leave, expenses, overtime, advance payment, and more through their own accounts. HR managers can manage all the requests on the go! Using this app requires a Kolay account. Use your current account or visit our website. Here is the full list of what you can do with Kolay mobile app: Don't miss any activity Follow what is going on at work in the past, present, and future. See upcoming company events, birthdays, absences, and more. Get in touch with your colleagues Call your colleagues or send an email without any hassle. Request any leave with one click Request any type of leave and add your expenses on the go. Overtime and advance payment requests are here as well. Manage pending requests Access and process any request from your colleagues. Spend less time doing paperwork and more time reaching your business goals. Keep track of all your requests View the status of your pending requests anytime, from anywhere. Updates and new features are coming soon!

About

Oncallz

Features
Read full description

Oncallz is the responder's app for on-call and incident management. When something breaks, get paged, triage fast, and keep your team in the loop — all from your phone. WHAT YOU CAN DO • Get alerted the moment an incident triggers, with critical and time-sensitive notifications. • Triage from the dashboard: see active, unacknowledged, and critical incidents at a glance, then tap straight into what needs you. • Acknowledge, resolve, comment on, or reopen incidents — swipe a card or open the detail view. • Act in bulk: select several incidents and acknowledge or resolve them at once. • Follow a clear incident timeline with notifications, calls, emails, and comments interleaved in order. • See who's on call right now across your teams, and know at a glance whether it's you. • Stay page-ready: verify your phone for SMS and voice pages and confirm push is registered. HOW IT WORKS Oncallz delivers alerts directly over Apple Push Notification service, with SMS and voice paging for the moments that matter. Your organization manages teams, schedules, escalation policies, and integrations in the Oncallz web app; the mobile app is built for the responder on the go. Oncallz requires an Oncallz account. Sign in with your work email.

Screenshots

Kolay4 screens
Oncallz4 screens

Verdict

The call

Kolay and Oncallz are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Kolay ships an update fortnightly, Oncallz every 11 days. Both last shipped on October 15, 2026.

ScorecardNo meaningful differences
Kolay versus Oncallz: the parameters behind the verdict, then further details
ParameterKolayOncallz
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews44.7% of reviews—
Number of ratings2 — better—
Update frequencyFortnightlyEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size64 MB41 MB
Age rating4+4+
DeveloperKolay Yazilim Anonim SirketiHARUN YARDIMCI

In-app purchases

None

Kolay

No in-app purchases

None

Oncallz

No in-app purchases

Questions

Is Kolay free?
Kolay is free to download, with no in-app purchases.
Is Oncallz free?
Oncallz is free to download, with no in-app purchases.
Do Kolay or Oncallz have ads?
Neither Kolay nor Oncallz shows ads.
Which is updated more often, Kolay or Oncallz?
Kolay ships an update fortnightly, and Oncallz every 11 days. Most recently, Kolay was updated on October 15, 2026 and Oncallz on October 15, 2026.

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