Lunar Timer vs ScreenAutoOn
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lunar Timer
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Lunar Timer is a calendar and timer app that notifies you of celestial events — new moons, full moons, and moon transitions. Track the moon's status in real time and stay on top of your schedule. 【Home Screen】 ・Displays the next transition start/end time ・Visual progress bar showing the current phase ・Real-time moon status display (tap to toggle illustrations) 【Push Notifications】 ・Moon transitions: 2 hours before / at start / at end ・New Moon: notified at the exact moment ・Full Moon: notified at a set time on the day of the event *Notification timing is adjusted based on transition periods. ・Automatic silent mode from midnight to 6:00 AM ・Delivered in your device's local time — works worldwide 【Calendar & Reminders Integration】 ・Sync with the default iOS Calendar and Reminders apps ・Register events for the current and next 3 months at once ・Choose your preferred destination list ・Auto-sync: updates to the latest data each month ・Alarm (notification) settings: - Notifications ON: registered at the same timing as push notifications (excludes transition end notifications) - Notifications OFF: registered at each event's start time *For transitions: Calendar registers both start and end times. Reminders register the start time only (end time shown in the title). *Do not delete the Identifier ID in the event notes. It is required for auto-updates and bulk deletion. 【Widgets & Live Activities】 ・Check upcoming events from your home screen without opening the app ・Open the app during a transition to display the end time via Live Activities ・Dynamic Island supported (compatible devices only) 【Premium Plan (Auto-Renewing Subscription)】 ・Ad-free experience ・Annual Schedule (yearly calendar view) ・Annual List (yearly event list) ・Memo feature for each date (quick notes & detailed entries) ■ Subscription Details ・Plan: Premium Plan ・Duration: 1 month (auto-renewing) ・Price: See the in-app purchase screen for pricing in your region. - Payment is charged to your Apple ID. - Automatically renews unless turned off at least 24 hours before the renewal date. - Auto-renewal can be managed anytime in your Apple ID settings. - Use "Restore Purchases" to recover premium features after switching devices. This app is an informational tool that displays the timing of lunar events. It does not guarantee any specific results or outcomes. For questions or bug reports, please use the Contact form in the app's Settings screen.
ScreenAutoOn
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ScreenAutoOn helps keep your screen awake at the right time without adding unnecessary complexity. Use ScreenAutoOn to: - keep your screen awake manually when needed - automatically keep your screen awake while selected apps are running or active - check monitored app status and current activity - view desktop status from your phone and request remote sleep when work is done - receive reminders when important apps stop running - manage more monitored apps with Pro ScreenAutoOn is useful for downloads, uploads, syncing, compiling, rendering, meetings, and other workflows where you do not want the display to sleep unexpectedly. Purchases and subscriptions are managed by the App Store and can be canceled at any time.
Screenshots
Verdict
The clearest difference is ads: ScreenAutoOn at none against Lunar Timer's shown. On price, update cadence, in-app purchases and device support 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. Lunar Timer sells 1 in-app purchase, starting at $1.99 per month and ScreenAutoOn sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Lunar Timer ships an update every 9 days, ScreenAutoOn weekly. The most recent releases landed on September 11, 2026 and July 8, 2026 respectively.
| Parameter | Lunar Timer | ScreenAutoOn |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, Mac |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | ATSUKO MOTOYAMA | 泽祥 苏 |
In-app purchases
Lunar Timer
- Premium Plan3 Days trial$1.991 Month
ScreenAutoOn
- ScreenAutoOn Pro Monthly1 Month trial$1.991 Month
- ScreenAutoOn Pro Annual$11.991 Year





