Nixie時計０ vs otta見守り人
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nixie時計０
A retro-style clock app featuring Nixie tube-inspired displays for year, hour, minute, and second. It also includes an angle meter function for added utility.
- Nixie tube-style display
- Year, hour, minute, second display
- Angle meter function
- Retro aesthetic
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昔懐かしいニキシー管風の表示部を持った時計です。西暦表示、時、分、秒が表示されます。角度計の機能もあります。よろしくお願いします。
otta見守り人
Become a "guardian" for your community's safety and security. Simply install and start the app to contribute to local safety during your daily commutes and outings. Your steps help ensure the safety of children and the elderly in your area.
- Contribute to local safety
- GPS-based proximity reporting
- Easy installation and activation
- Supports children and elderly safety
- No daily operation required
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あなたの地域の安心・安全を担う「見守り人」になるためのアプリです。 日々の操作は不要なので、インストールしてスタートボタンを押すだけで、いつもの通勤や散歩やお出かけが、地域の安心に貢献する見守り活動になります！ otta見守り端末を持っているお子さまや高齢者の方と すれ違う時にスマートフォンのGPS機能を使ってすれ違った位置が報告されます。 ※アプリをインストールしているかたの個人情報は取得いたしません。 あなたの１歩が、地域のお子さまや高齢者の方の安心へとつながり、安心・安全な地域の実現への１歩となります。皆様のご協力よろしくお願いいたします。
Screenshots
Verdict
The clearest difference is price: otta見守り人 at Free against Nixie時計０'s $0.99. otta見守り人 also leads on review sentiment (29% vs 0%) and update cadence (every 8 months vs every 22 months). 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
otta見守り人 is free to download; Nixie時計０ costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Nixie時計０ ships an update every 22 months, otta見守り人 every 8 months. The most recent releases landed on October 9, 2026 and September 16, 2026 respectively.
| Parameter | Nixie時計０ | otta見守り人 |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 0.0% of reviews | 29.4% of reviews — better |
| Update frequency | Every 22 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Tetsuya Morikawa | otta inc. |
Customer experience
Nixie時計０
otta見守り人
In-app purchases
Nixie時計０
No in-app purchases
otta見守り人
No in-app purchases
