Comparison

C4 CAM vs Yi iot

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

Head to head
About

C4 CAM

This utility app allows users to remotely monitor video streams, capture still images, and communicate through the camera's audio features. It provides essential live viewing and interaction capabilities for connected devices.

Highlights
  • Watch video online
  • Save snapshots
  • Listen and speak through camera
Features
Read full description

You can use it; 1,Watch the video on line; 2,Save the snapshot; 3,Listen and speak through the camera;

About

Yi iot

Monitor your home or workspace remotely with live streaming, two-way audio, and AI-powered event highlights. Access recordings from anywhere and receive alerts for important moments. Optional cloud subscriptions offer enhanced features and storage.

Highlights
  • AI-curated event highlights
  • Remote access to live streaming and recordings
  • Two-way audio communication
  • Smart panoramic view
  • Optional cloud subscription plans
Features
Read full description

Yi iot – Smarter Security, Smarter Life Stay close to what matters most with Yi iot. Whether you’re at home, at work, or on the go, Yi iot helps you see, hear, and protect—anytime, anywhere. Key Features -AI-Curated Highlights: Review the most important moments in seconds without scrubbing through hours of video. -Access from Anywhere: Cloud storage keeps your memories safe, even if your device is lost or damaged. -24/7 Live Streaming & Recording: Safety that never sleeps—always know what’s happening in real time. -Two-Way Audio: Talk to family, pets, or visitors with a simple tap. -Smart Panoramic View: Move your phone to explore every corner instantly. Optional Cloud Subscription Upgrade with flexible cloud plans to unlock advanced features like AI highlights, unlimited playback, and continuous 24/7 recording. Auto-renewing subscriptions info: -Subscription name:15d. Loop(30d.), 5 Cam -Length of subscription: 30 days -Price of subscription: $19.99 per month -Subscription name:7d. Loop(12m.), 1 Cam, CVR -Length of subscription: 365 days -Price of subscription: $99.99 per month -Subscription name:15d. Loop(12m.), 5 Cam -Length of subscription: 365 days -Price of subscription: $129.99 per month -Subscription name:7d. Loop(365d), 3 CVR -Length of subscription: 365 days -Price of subscription: $249.99 per year -Subscription name:30days Loop(365d), 5 Cameras -Length of subscription: 365 days -Price of subscription: $149.99 per year -Subscription name:Response Service(30d) -Length of subscription: 30 days -Price of subscription: $12.99 per year -Subscription name:Response Service(365d) -Length of subscription: 365 days -Price of subscription: $69.99 per year -Subscription name:1,7,365,CVR,BlackFriday -Length of subscription: 365 days -Price of subscription: $79.99 per year -Subscription name:5,15,365,BlackFriday -Length of subscription: 365 days -Price of subscription: $129.99 per year -Subscription name:5,30,365,BlackFriday -Length of subscription: 365 days -Price of subscription: $179.99 per year 

-Subscription name:5,30,365,CVR -Length of subscription: 365 days -Price of subscription: $199.99 per year -Subscription name:1-7-CVR-1Month-CN-IOT-AUTO -Length of subscription: 30 days -Price of subscription: $4.99 per month -Subscription name:1-30-CVR-1Month-CN-IOT-AUTO -Length of subscription: 30 days -Price of subscription: $9.49 per month -Subscription name:07d. Loop(365d.),2 Cam -Length of subscription: 365 days -Price of subscription: $20.49 per year -Subscription name:07d. Loop(30d.),2 Cam -Length of subscription: 30 days -Price of subscription: $2.49 per month 
-Payment: The user confirms the purchase and pays it with their iTunes account. -Cancel renewal:If you need to cancel the renewal, please manually turn off the automatic renewal function in Itunes / Apple ID settings management 24 hours before the current subscription expire -Renew:Apple ITunes account will be debited within 24 hours before expiration, and the subscription cycle will be postponed for one month after the deduction is successful
-Precautions:After renewing the subscription automatically, the service is free for the first month, and the trial period ends from the day of purchase to the day of next month, and the charge is automatically deducted -Terms of use:https://api.yitechnology.com/home/terms_of_use?location=USA&lang=zh-CN?location=USA&lang=zh-CN -Privacy policy:https://api.yitechnology.com/home/privacy_agreement?location=USA&lang=zh-CN?location=USA&lang=zh-CN -YI Cloud Service Agreement:https://api.yitechnology.com/homecamera/cloud_agreement_ios.html -Automatic Renewal Service Agreement:https://app.yitechnology.com/#/YihomeAutoRenewalAgreement

Screenshots

C4 CAM4 screens
Yi iot4 screens

Verdict

The call

The clearest difference is rating: Yi iot at 3.1 against C4 CAM's 1.0. Yi iot also leads on ratings volume (5K vs 3) and update cadence (every 2 weeks vs every 2 months). C4 CAM's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Yi iot sells 10 in-app purchases, starting at $9.99 per month. C4 CAM asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Yi iot holds the better App Store score, 3.1 against 1.0. That said, the two scores are not equally well evidenced: Yi iot has 5K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of C4 CAM's written reviews are positive against 5% of Yi iot's.

UpkeepUpdate frequency

C4 CAM ships an update every 2 months, Yi iot every 2 weeks. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

Scorecard7 real differences · 3 level
C4 CAM versus Yi iot: the parameters behind the verdict, then further details
ParameterC4 CAMYi iot
PriceFreeFree
Rating1.0 (3 ratings)3.1 (5K ratings) — better
Positive reviews0.0% of reviews5.3% of reviews — better
Number of ratings35K — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size40 MB379 MB
Age rating4+4+
DeveloperDongguan Shengding Electronic Technology Co., Ltd.ZK (HK) LIMITED

Customer experience

C4 CAM

All ratings3 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Yi iot

All ratings4,973 ratings
Positive50.0%
Neutral5.5%
Negative44.5%
Written reviews1,215 reviews
Positive5.3%
Neutral4.4%
Negative90.2%

Bugs and requests

C4 CAM

Not enough reviews yet to summarise bugs or requests.

Yi iot

Reported bugs

4 issues
  • Camera randomly turns to face the wall
  • App freezes and becomes unusable after updates
  • SD card recordings not accessible without subscription
  • Alerts and notifications not working as expected

Requested features

4 requests
  • Add option to disable IR lights
  • Improve playback and review of recorded footage
  • Provide better customer support and communication
  • Allow more customization of motion detection zones

In-app purchases

None

C4 CAM

No in-app purchases

10 purchases

Yi iot

Subscriptions10
  • 1month 15-day 1cam motion7 Days trial$9.991 Month
  • 30D-Entryplan-IN(1M1D)$9.991 Month
  • 7d. Loop(30d.), 1 Cam$15.991 Month
Show 7 more
  • 7d. Loop(30d.), 1 Cam, CVR$18.991 Month
  • 15d. Loop(30d.), 5 Cam$22.991 Month
  • 30d. Loop(30d.), 5 Cam$25.991 Month
  • 30D-Entryplan-IN(1Y1D)$26.991 Year
  • 12month 15-day 1cam motion3 Days trial$59.991 Year
  • 15d. Loop(12m.), 5 Cam3 Days trial$139.991 Year
  • 30days Loop(365d), 5 Cameras3 Days trial$174.991 Year

Questions

Is C4 CAM free?
C4 CAM is free to download, with no in-app purchases.
Is Yi iot free?
Yi iot is free to download, with in-app purchases available.
Which has better reviews, C4 CAM or Yi iot?
Yi iot is rated higher. C4 CAM averages 1.0 out of 5 from 3 ratings, while Yi iot averages 3.1 from 5K ratings.
Do C4 CAM or Yi iot have ads?
Yi iot shows ads; C4 CAM does not.
Which is updated more often, C4 CAM or Yi iot?
C4 CAM ships an update every 2 months, and Yi iot every 2 weeks. Most recently, C4 CAM was updated on November 1, 2026 and Yi iot on November 8, 2026.

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