Dovio vs OnceChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dovio
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見知らぬ誰かと、手紙でつながる。 Dovioは、あなたのメッセージがランダムな誰かに届く、不思議な文通アプリです。 【こんな人におすすめ】 ・誰かに気持ちを伝えたいけど、相手を選ぶのが難しい ・見知らぬ人との偶然のつながりを楽しみたい ・日常のひとことを、誰かに届けたい 【特徴】 ・送ったメッセージはランダムな誰かに届く ・返信が来たらチャットスレッドが始まる ・ポイント制でスパムを抑制(初期50pt・送信-3pt・返信+1pt) ・性別・年代・エリアでプロフィール設定可能 【安心の設計】 ・不適切な内容は自動フィルタリング ・ブロック・通報機能あり ・運営による監視体制
OnceChat
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OnceChat is a quiet messaging app built around a simple idea: just one message a day. Away from endless notifications, constant replies, and the pressure of read receipts — you choose one message each day, carefully, and send it. That's OnceChat. ■ One message a day Just one message per day, taking turns. So every single letter matters. ■ Quietly gone in 24 hours Your words fade after 24 hours. Because nothing is kept, some things become easier to say. ■ No notifications No push notifications, ever. Open the app when you want to, at your own pace. A quiet place that never rushes you. ■ Today's letter Share one short public letter a day with all your friends. Send yours, and you can read theirs too — a new, reciprocal way to stay connected. ■ Thoughtfully secure No passwords — sign in with a passkey (biometrics). Messages are encrypted. No ads, and no third-party tracking. A calm space, like the quiet before dawn. Send your one letter today, with OnceChat.
Screenshots
Verdict
Dovio and OnceChat are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Dovio ships an update every 3 weeks, OnceChat every 2 weeks. The most recent releases landed on September 16, 2026 and September 19, 2026 respectively.
| Parameter | Dovio | OnceChat |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 8 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | Yuya Tanaka | Kosei Takanashi |
In-app purchases
Dovio
No in-app purchases
OnceChat
No in-app purchases








