Wareki vs Phone Guardian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wareki
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和暦表示のアプリです。 西暦から令和、平成、昭和への年の対応を表示します。 Apple Watch のアプリをインストールすることで和暦の年を表示するコンプリケーションが追加できます。 コンプリケーションを追加することで Apple Watch の文字盤に「令和8年」の表示が追加され、仕事中に和暦の確認ができます。 日本の祝日表示は令和9年度まで対応しています。
Phone Guardian
This app alerts your Apple Watch the moment your iPhone disconnects via Bluetooth, preventing you from leaving it behind. It offers customizable alerts, safe zones, and the ability to ring your iPhone from your watch.
- Instant left-behind alerts
- Distance warning
- False-alarm guard
- Safe Zones
- Ring iPhone from Watch
- Watch face functionality
- Battery friendly design
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"Wait — where's my phone?" Let's make that heart-drop moment a thing of the past. Phone Guardian buzzes your Apple Watch the instant the Bluetooth link to your iPhone breaks. Find My helps you locate a phone after it's lost — Phone Guardian tells you the second you leave it, so you can just turn around. ■ Perfect for moments like these - Heading out: know the second you leave your phone at the door - Cafés & restaurants: never leave it on the table when you get up - Travel & trips: avoid leaving it at hotels or airports - Trains & buses: get alerted the moment you leave it on your seat ■ Key features - Instant left-behind alert: your Watch buzzes within seconds - Distance warning: a gentle heads-up before the connection is even lost - False-alarm guard: a brief blip won't trigger it (0–10s grace) - Safe Zones: silence alerts at home or any place you choose - Ring your iPhone: find it loudly from your Watch, even in silent mode - Also a watch face: turn the monitoring screen into a digital or analog clock, with your own photo background, world clock, and corner widgets - Japanese / English: switch anytime inside the app ■ Battery friendly Only low-energy Bluetooth and near-zero-power geofencing. No constant GPS — battery impact is minimal. ■ Privacy No location, no analytics, nothing leaves your device. Everything stays local. ■ Before you start - Requires an iPhone on iOS 17+ paired with an Apple Watch on watchOS 9+ - One-time purchase. No subscription, no ads. - Due to watchOS rules, alerts can be delayed on some models or usage patterns. If that happens, keeping Phone Guardian as your Watch face is the most reliable setup — and it doubles as your everyday clock. Keep your iPhone safe, right there on your wrist.
Screenshots
Verdict
The clearest difference is update cadence: Phone Guardian at every 3 weeks against Wareki's every 2 months. Wareki's advantage is price ($0.99 vs $1.99). On ads, 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
Wareki costs $0.99 and Phone Guardian $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Wareki ships an update every 2 months, Phone Guardian every 3 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | Wareki | Phone Guardian |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Positive reviews | — | 50.0% of reviews |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Yutaka Umetsu | KAZUTO MATSUBARA |
In-app purchases
Wareki
No in-app purchases
Phone Guardian
No in-app purchases









