O vs One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O
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アルバイトや社員のシフトを管理。
One
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Shift scheduling made effortless — for managers who run a team. Minna no Shift is a shift scheduling app for busy managers in restaurants, cafes, retail, and beyond. Build next week's schedule and share it with your staff — all from your phone, with one hand. ■ Say goodbye to ・Fiddly spreadsheets and paper rotas ・Rebuilding the schedule from scratch every week ・The hassle of sending shifts to each staff member ■ What you can do ・One-handed and simple: build a schedule right on your phone ・Master shift saves you time every week: set your weekly template once, then just fill it in ・Staff management: add staff and assign them straight into shifts ・Clear table & graph views: switch by week, day, or staff member at a glance ・Share in one image: save the finished schedule as a screenshot to send on chat, or export to PDF and print ■ Get started in 3 steps 1. Create your master shift Set up your one-week template. It becomes the base for every schedule. 2. Add your staff Assign your registered staff straight into shifts. 3. Build and share See your schedule at a glance on the Top screen, then share by screenshot or print. ■ Premium plan Extra tools to make scheduling even easier. ・Break scheduling: manage breaks for each staff member ・Auto shift creation (Beta): generate a draft schedule from your settings Built by a working restaurant manager — the shift app we actually want to use. Your feedback is always welcome.
Screenshots
Verdict
The clearest difference is ads: O at none against One's shown. O also leads on device support (3 vs 1). One's advantage is update cadence (every 3 days vs every 3 weeks). On price, in-app purchases and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
O ships an update every 3 weeks, One every 3 days. Both last shipped on October 25, 2026.
| Parameter | O | One |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 16.4 |
| Further details — not scored | ||
| Size | 3 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | O-TECH JAPAN | Koji Shimizu |
In-app purchases
O
No in-app purchases
One
No in-app purchases









