Kolay vs Oncallz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Submit leave requests
- Submit expense reports
- Submit overtime requests
- Approve/deny requests
- View company events
- Contact colleagues
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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!
Oncallz
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kolay ships an update fortnightly, Oncallz every 11 days. Both last shipped on October 15, 2026.
| Parameter | Kolay | Oncallz |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 44.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 64 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Kolay Yazilim Anonim Sirketi | HARUN YARDIMCI |
In-app purchases
Kolay
No in-app purchases
Oncallz
No in-app purchases









