QuickAgePlus vs Watch across email
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuickAgePlus
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Calculates and displays your age and the number of days since your birth. Supports both the Japanese era (Wareki) and the Western calendar. Shows the day of the week you were born and how many days you have lived. You can also store the birthdays of important people. Additionally, you can change the reference date to find out, for example, how old you will be on April 1, 2030. [About the Ad Removal Subscription] With QuickAgePlus, you can remove all full-screen ads by purchasing a subscription for ¥100/month or ¥1,000/year. The subscription auto-renews and can be canceled anytime in your Apple ID settings. 利用規約(EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー:https://vitoyaokatsukatsu.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vitoyaokatsukatsu.com/privacy/
Watch across email
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Watch Across Mail is a location monitoring app that uses GPS to detect when a monitored device enters or leaves predefined areas and sends email notifications. Simply register monitoring areas and start monitoring—no complicated setup required. ■ Features • Notify when the monitored device leaves an area • Notify when the monitored device enters an area • Notify when it returns to its previous state ■ What's New Automatic Start Timer Monitoring can now start automatically at a scheduled time every day. This is especially useful for monitoring family members who live separately, eliminating the need to manually start monitoring each day. Data Set Support Save up to 5 monitoring data sets. For example: • Home • School • Workplace • Hospital • Travel Switch instantly between different monitoring settings with a single tap. ■ Email Notifications Notification emails include the detected location. Tap the map link in the email to open the location immediately in your map application. Because notifications are sent by email, they can be viewed on: • Smartphones • PCs • Tablets The same email can also be shared with multiple family members or caregivers. No additional application is required—simply use your existing email environment. ■ Area & Settings Management • Save up to 5 data sets • Register up to 24 monitoring areas per data set • Quickly switch settings depending on your monitoring purpose ■ Notification Behavior • Receive notifications whenever the monitoring status changes • Optional repeated notifications at intervals (up to every 15 minutes) ■ Free Version Limitations • Maximum of 48 notification emails per month • Repeated notifications are limited ■ Subscription The subscription removes the limitations of the free version and enables continuous notification features. Only one device can perform monitoring at the same time. ■ Typical Use Cases • Monitoring elderly family members • Keeping children safe • Monitoring family members who live separately • Shared monitoring among family members or caregivers • Checking travel and outing status ■ Privacy Location information is used only to determine whether the monitored device enters or leaves registered areas. Location data is not stored externally and is never shared with third parties. ■ Subscription Information Subscriptions renew automatically unless canceled at least 24 hours before the end of the current subscription period. Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/jp/terms.html Privacy Policy http://ebcraft.com/WatchAcroos/policy/en/index.html User Guide http://ebcraft.com/WatchAcroos/use/en/index.html
Screenshots
Verdict
The clearest difference is ads: Watch across email at none against QuickAgePlus's shown. QuickAgePlus's advantage is update cadence (every 3 days vs weekly). On price, in-app purchases, device support 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. QuickAgePlus sells 2 in-app purchases, starting at $0.49 per month and Watch across email sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
QuickAgePlus ships an update every 3 days, Watch across email weekly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | QuickAgePlus | Watch across email |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Katsuhiko Yao | Kiyoshi Tabuchi |
In-app purchases
QuickAgePlus
- Remove Ads (Monthly)$0.491 Month
- Remove Ads (Yearly)$5.991 Year
Watch across email
- Full Access Plan$1.991 Month
Questions
Is QuickAgePlus free?
Is Watch across email free?
Do QuickAgePlus or Watch across email have ads?
Which is updated more often, QuickAgePlus or Watch across email?
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