CamX vs Duo Video
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CamX
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Example of use ·business Management of business cards and business letters Recording of the whiteboard in meeting materials ·A student Record notebook and blackboard on board Storage of printed materials and other items to be distributed ·Everyday life Preservation of receipts and supermarket leaflets and coupons Preservation of timetables for trains and buses Main functions · Automatic trimming · ONOFF of flash · Crop document image · Sharing to email etc. Trimming Tips · Separate shooting background and shooting object color · Do not insert multiple objects
Duo Video
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DuoVideo lets you record with both the front and back cameras at the same time. Every session produces three separate files: a picture-in-picture composite, a clean back-camera clip, and a clean front-camera clip - all synchronized to the same timecode. - Simultaneous front and back camera recording powered by Multi-Camera capture - Picture-in-picture composite saved alongside two independent raw tracks - Choose between 720p, 1080p, and 4K resolution - Select 24, 30, or 60 frames per second - Switch between video and photo mode at any time - Mirror control for the recorded output - Configurable PiP position: front camera or rear ultra-wide - Auto-save recordings directly to your Photos library - All recordings organized in a built-in file browser with share support - Lifetime unlock available as a one-time purchase - Requires a device that supports Apple Multi-Camera capture (iPhone XS or later recommended).
Screenshots
Verdict
The clearest difference is in-app purchases: CamX at none against Duo Video's 1. CamX also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price and device support 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. Duo Video sells 1 one-off in-app purchase. CamX asks for nothing beyond the download.
CamX ships an update every 3 days, Duo Video every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | CamX | Duo Video |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 23 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | CodeDynamix | Jiangsu Mingbin Jingzhi Technology Co., Ltd |
In-app purchases
CamX
No in-app purchases
Duo Video
- Lifetime Unlock$9.99









