ShiftAlarm vs Kuadri
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
ShiftAlarm
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ShiftAlarm is a modern shift calendar for anyone who wants to keep work hours, shifts, and days off clearly organized. With ShiftAlarm, you can manage shifts in your calendar, create custom shift templates, plan recurring rotations, track vacation and remaining vacation days, and record and evaluate overtime. Pro features provide additional statistics and advanced evaluations for an even better overview. ShiftAlarm helps you organize your work schedule and keep important information quickly accessible. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Kuadri
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Kuadri is the calendar for people who work shifts. Log your shifts, track your hours and pay, build rotations, and share your calendar with family or coworkers. EVERYTHING THAT RUNS ON YOUR PHONE IS FREE, FOREVER: โข Shifts, rotations and named patterns (DuPont, Pitman, 5-2, 4-4 and more) โข Hours, overtime, and night, weekend and holiday premiums โข Estimated pay, with withholding and approximate take-home โข Monthly and yearly stats, with PDF and CSV export โข Shift reminders and alarms (they ring even on silent) โข Home screen widgets โข Split shifts, notes, holidays and days off โข Available in 6 languages, with no ads and no trackers CLOUD BACKUP (optional, paid): Keep a copy of your calendar in the cloud so you can restore it on a new phone, and share it with anyone through a private link. It is the only paid part, because it is the only part that needs a server. YOUR PRIVACY: By default all your data stays on your device. We do not sell your data and we do not use it for advertising. โ โ โ CLOUD BACKUP (optional, paid): โข Kuadri Cloud (annual): $14.99/year subscription. โข Kuadri Cloud (one-time): $29.99, paid once. Both unlock cloud backup and sync. Every other feature is free. Prices may vary by country. Payment will be charged to your Apple account at confirmation of purchase. The subscription renews automatically for the same period unless you cancel it at least 24 hours before the end of the current period; you can manage or cancel it in your Apple account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kuadri.penedolabs.com/privacidad/
Screenshots
Verdict
The clearest difference is update cadence: Kuadri at every 5 days against ShiftAlarm's fortnightly. Kuadri also leads on iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. ShiftAlarm sells 2 in-app purchases, starting at $3.99 per month and Kuadri sells 4 in-app purchases, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.
ShiftAlarm ships an update fortnightly, Kuadri every 5 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.
| Parameter | ShiftAlarm | Kuadri |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 89 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcel Nitsch | Efren Rodriguez Rodriguez |
In-app purchases
ShiftAlarm
- ShiftAlarm Pro Monthly14 Days trial$3.991 Month
- ShiftAlarm Pro Yearly$39.991 Year
Kuadri
- Kuadri Nube (anual)$14.991 Year
- Kuadri Cloud$1.00
- Kuadri Cloud$3.99
- Kuadri Cloud (pago unico)$29.99








