ワンチャット vs PIKUNO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ワンチャット
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会話履歴の残らない、まるでリアルなチャット体験を。 「ワンチャット」は、登録不要ですぐに始められるチャットアプリです。 誰とでも気軽に、いつでも一言をやりとり。 話し相手が見つからない時は、AIとのチャットも可能。ちょっとしたスキマ時間の暇つぶしにもぴったりです。 送ったメッセージは一回のやりとりで消える仕組み。会話が積み重ならないから、まるで「今、この瞬間」だけのリアルな会話のよう。 深夜にちょっと誰かと話したい時、通勤時間にひと息つきたい時。そんな小さなタイミングで、ふと心がほぐれるような場所をめざしました。
PIKUNO
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Pick one. Pick up. PIKUNO is a 1-on-1 voice call app. See who is available to take a call right now, pick one person, and talk. ■ You choose You are never matched automatically, and you are never connected to a call before you have seen who it is. Each person shows their name, age, languages, topic and time limit. You decide who to call; they see your profile and choose to answer or decline. The order is never ranked by popularity. ■ The receiver sets the timer Whoever waits for calls sets the time limit, from 15 seconds to 15 minutes. When time is up, the call ends automatically. ■ Send a HAPPY Enjoyed the call? Send a HAPPY afterwards. That's the only rating in PIKUNO — no stars, no reviews, no leaderboards. ■ Talk across the world You only see people who share a language with you. ■ Built for safety - 18+ only. PIKUNO is not a dating app. Sexual advances and solicitation are prohibited - Zero tolerance for objectionable content or abusive users. Every report is reviewed within 24 hours; offending content is removed and the offending user is ejected - Report or block anyone in one tap — from the list, from the incoming-call screen, or during a call. Reports are never shown to the other person - Profile text is screened before it is posted, and you can remove your own listing from the list at any time - No DMs and no contact exchange — those features simply don't exist - Contact us anytime at support@pikuno.app, and delete your account anytime in the app Someone new, a few minutes, then back to your evening.
Screenshots
Verdict
The clearest difference is update cadence: PIKUNO at daily against ワンチャット's every 6 weeks. ワンチャット's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
ワンチャット ships an update every 6 weeks, PIKUNO daily. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.
| Parameter | ワンチャット | PIKUNO |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 107 MB | 43 MB |
| Age rating | 12+ | 17+ |
| Developer | 合同会社Geckou | Shoma Ueyama |
In-app purchases
ワンチャット
No in-app purchases
PIKUNO
No in-app purchases









