Comparison

DuoScene vs IHorizonLock Camera

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DuoScene

Record front and rear cameras simultaneously to capture both the scene and your reaction in a single take. Automatically generate vertical and horizontal video versions, ideal for vlogging and quick content creation. Offers a built-in teleprompter and video stabilization for smoother recordings.

Highlights
  • Simultaneous front and rear camera recording
  • Multiple dual-camera layouts
  • Automatic 9:16 and 16:9 video generation
  • Built-in teleprompter
  • Video stabilization
  • Automatic saving to system album
Features
Read full description

Capture with both front and rear cameras simultaneously—record what you see and your reaction in one take. DuoScene is a lightweight dual-camera app that supports simultaneous front and rear recording. It can also automatically generate both vertical and horizontal versions from a single shot. Ideal for Vlogs, store visits, travel, reactions, tutorials, on-camera speaking, and daily documentation. No need to shoot twice or export repeatedly—save and publish right after recording. Core Features - Simultaneous front and rear recording to capture both the scene and the person's reaction in one take - Import an existing video from Photos and record your live reaction beside it, with source audio on or off - Use an image as the main view and adjust its zoom and position before recording - Supports multiple dual-camera layouts, including picture-in-picture, top-bottom split, and diagonal arrangement - Automatically generates both 9:16 and 16:9 versions from a single shot - Capture photos or Live Photos with one or two cameras - Built-in teleprompter, suitable for on-camera speaking, tutorials, and product introductions - Video stabilization support for steadier handheld recording - Save finished photos and videos to the system Photos library - Retains original footage as much as possible in case of export errors, minimizing loss of captured content Who It's For - Users who want to simultaneously record a person's reaction and the scene - Creators who need to quickly produce both horizontal and vertical content - Users who frequently shoot Vlogs, store visits, travel, reactions, or tutorials - Lightweight creators who prefer minimal editing and want to publish right after shooting Free Use and Pro Benefits DuoScene offers full-feature experience, with new users receiving 5 watermark-free export opportunities. After the watermark-free exports are used up, you can still continue using the core recording features. To keep exporting watermark-free videos, you can choose to subscribe or purchase Pro with a one-time payment. Usage Notes - The front and rear dual-camera feature relies on iPhone devices that support MultiCam - Supported resolution, frame rate, and stabilization capabilities may vary by device - DuoScene focuses on recording and quick output, and does not offer complex timeline editing, music, stickers, or cloud sync features Subscription and One-Time Purchase DuoScene offers subscription and one-time purchase options. Specific pricing is as shown on the App Store page. Subscriptions will automatically renew within 24 hours before the end of the current period. You can cancel at any time in your Apple ID account settings. After cancellation, benefits will expire at the end of the current subscription period. Terms of Use: https://www.byrobin.app/terms/duoscene Privacy Policy: https://www.byrobin.app/privacy/duoscene

About

IHorizonLock Camera

This app uses advanced real-time processing to keep your videos perfectly level, achieving gimbal-like smoothness without extra hardware. It's ideal for action sports, content creation, and everyday use to eliminate shaky footage.

Highlights
  • 360° Horizon Lock
  • Real-Time Stabilization
  • Gimbal-Free Smoothness
  • High-Quality Export
  • Action Sports Stabilization
  • Content Creation Tool
Features
Read full description

Professional 360° Horizon Stabilization. IHorizonLock keeps your videos perfectly level, no matter how much you rotate or tilt your phone. Achieve gimbal-like smoothness using advanced real-time processing. Key Features: 360° Horizon Lock: Rotate your phone freely; the video stays upright. Real-Time Stabilization: Preview and record with instant leveling. Gimbal-Free Smoothness: Professional results without extra hardware. High-Quality Export: Keep your original resolution and clarity. Best for: Action Sports: Biking, skating, and running. Content Creation: Perfect for TikTok, Reels, and Vlogs. Daily Use: Steady shots while walking or moving quickly. Stop worrying about shaky footage. Keep it level with IHorizonLock.

Screenshots

DuoScene4 screens
IHorizonLock Camera4 screens

Verdict

The call

The clearest difference is in-app purchases: IHorizonLock Camera at none against DuoScene's 3. IHorizonLock Camera also leads on review sentiment (100% vs 67%). DuoScene's advantage is update cadence (every 4 days vs every 2 weeks). On price, rating, ratings volume and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DuoScene sells 3 in-app purchases, starting at $0.99 per month. IHorizonLock Camera asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for DuoScene against 4.6 for IHorizonLock Camera. Both are backed by a comparable volume of ratings — 14 and 9 respectively. Written reviews are what separate them: 67% of DuoScene's written reviews are positive against 100% of IHorizonLock Camera's.

UpkeepUpdate frequency

DuoScene ships an update every 4 days, IHorizonLock Camera every 2 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
DuoScene versus IHorizonLock Camera: the parameters behind the verdict, then further details
ParameterDuoSceneIHorizonLock Camera
PriceFreeFree
Rating4.6 (14 ratings)4.6 (9 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings14 — better9
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS1717
Further details — not scored
Size13 MB7 MB
Age rating4+4+
DeveloperWuhan Jiange Technology Co., Ltd.Luis Filipe Fontinelles Bezerra

Customer experience

DuoScene

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

IHorizonLock Camera

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

DuoScene

Subscriptions2
  • DuoScene Pro Monthly$0.991 Month
  • DuoScene Pro Yearly$2.991 Year
One-time1
  • DuoScene Pro Lifetime$9.99
None

IHorizonLock Camera

No in-app purchases

Questions

Is DuoScene free?
DuoScene is free to download, with in-app purchases available.
Is IHorizonLock Camera free?
IHorizonLock Camera is free to download, with no in-app purchases.
Which has better reviews, DuoScene or IHorizonLock Camera?
IHorizonLock Camera is rated higher. DuoScene averages 4.6 out of 5 from 14 ratings, while IHorizonLock Camera averages 4.6 from 9 ratings.
Do DuoScene or IHorizonLock Camera have ads?
Neither DuoScene nor IHorizonLock Camera shows ads.
Which is updated more often, DuoScene or IHorizonLock Camera?
DuoScene ships an update every 4 days, and IHorizonLock Camera every 2 weeks. Most recently, DuoScene was updated on October 26, 2026 and IHorizonLock Camera on October 28, 2026.

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