TwinCam vs onesec
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TwinCam
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TwinCamは、前面カメラと背面カメラを同時に撮影できるカメラアプリです。 一度の撮影で「自分」と「景色」の両方を記録。旅、イベント、日常の瞬間を2つの視点で残せます。 【主な特徴】 前後カメラの同時撮影に対応 写真・動画どちらもOK ワンタップで簡単操作 撮影データは端末に安全に保存 ログイン不要 【 こんなときにおすすめ】 旅行先で自分と風景を同時に撮りたいとき イベントやライブの臨場感をそのまま残したいとき SNS用に印象的な二面動画を作りたいとき 【プライバシー】 TwinCamはユーザーの個人情報を収集しません。 カメラアクセスは撮影のみに使用し、データはすべて端末内で処理されます。 TwinCam — 2つの瞬間を、ひとつのフレームに。
onesec
Easily create vlogs by selecting one-second clips from your videos. Reorder them instantly and share your daily life or travel montages. No complex editing needed for quick, shareable videos.
- Select and trim 1-second clips
- Drag to reorder clips
- Auto mode for quick creation
- Export to Camera Roll
- 30-day Story Challenge
- One-time purchase for Pro features
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onesec turns your videos into stunning vlogs by connecting 1-second clips from each. Pick your videos, choose the best 1-second moment from each, and your vlog is ready to share. FEATURES: - Select videos and trim 1 second from each - Drag to reorder clips instantly - Auto mode for one-tap creation - Export to Camera Roll or share directly - Choose from a 30-day Story Challenge for daily filming ideas - Complete a challenge theme after a successful export PERFECT FOR: - Anyone who wants to vlog without the hassle - Creating quick travel or daily life montages - Making short, shareable videos for social media No complex editing required. Just pick your seconds and let onesec do the rest. ONESEC PRO: - All 30 Story Challenge themes (7 are free) - Unlimited clips and longer 2- or 3-second holds - Every soundtrack, date stamps, and watermark-free exports - One-time purchase; not a subscription Purchase and Legal Information Pro features are unlocked with a one-time in-app purchase. This is not a subscription. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://starcrown.co.jp/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: TwinCam at none against onesec's 4. onesec's advantage is update cadence (every 2 days vs every 6 months). On price, ads, 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. onesec sells 4 one-off in-app purchases. TwinCam asks for nothing beyond the download.
TwinCam ships an update every 6 months, onesec every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | TwinCam | onesec |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 6 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Kota Doi | Starcrown Inc |
In-app purchases
TwinCam
No in-app purchases
onesec
- Coffee$0.49
- Cookie$2.99
- Onesec Pro$2.99
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- Cake$6.99








