nAble OnCall vs On
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
nAble OnCall
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nAble OnCall provides a quick and easy way to setup a call schedule for a group of physicians at one or more healthcare facilities. With a simple and intuitive layout, nAble OnCall follows the familiar process of creating a call schedule. The call schedule administrator creates a call group, invites members to join the group and asks for their call preferences. Aided by the nAble OnCall and the input from the group members, the administrator creates an equitable call schedule. The group members can send messages within the group to request call swaps or seek temporary coverage arrangements. The call schedule is displayed in color-coded format on a monthly calendar, which can be shared, emailed, and printed.
On
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The all new on Call Calendar! - Track your on-calls during the period you specify. - Add other coworkers to track which days they are on-call. - View your progress and achievements as you go. - Multiple themes to match your iPhone color with light and dark modes. Coming soon: notifications, calendar widget, themes! - Uses: Medical residents, Job Personal journal
Screenshots
Verdict
The clearest difference is update cadence: On at every 6 days against nAble OnCall's every 14 months. nAble OnCall's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 26.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
nAble OnCall ships an update every 14 months, On every 6 days. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.
| Parameter | nAble OnCall | On |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 6 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 9.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 29 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Nth Technologies | Cesar Mejia Valero |
In-app purchases
nAble OnCall
No in-app purchases
On
No in-app purchases









