Comparison

Kemo vs Tapp Bell Ring Door

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

Head to head
About

Kemo

Easily set up your smart home devices and receive instant alerts for visitors or motion. Monitor your home with high-definition video, and communicate with visitors from anywhere. Offers various subscription plans for extended service.

Highlights
  • Easy device setup
  • Instant visitor/motion alerts
  • High-definition video monitoring
  • Two-way audio communication
  • Remote access from anywhere
  • Automatic subscription renewal
Features
Read full description

- Easy to set up your devices in the Kemo App. - Get instant messages when visitors press the doorbell or trigger the PIR motion sensors. - Monitor your home in high definition video. See, hear, and speak to visitors from anywhere. Automatic Subscription Instructions: 1. Service name: Cyclic 15 day, use 1 month(1 month);R-cycle 30 day,service 6 month(6 months);R-cycle 30 day, service 1 year(1 year) 2. Price: continuous package for 1 month product is $3.99, continuous package for 6 months product is $28.99, continuous package for 1 year product is $29.99 3. For an account that purchases an automatic subscription service, we will automatically deduct the next period of fees within 24 hours from your iTunes account before the service expires, and extend the corresponding service content, service conditions and service period. 4. If you need to cancel the automatic subscription, please manually open the Apple phone "Settings"-->Enter "iTunes Store & App Store"-->Click "Apple ID", select "View Apple ID", enter the "Account Settings" page, click "Subscribe", select "Aiwit" to cancel the subscription. If you do not close the automatic subscription at least 24 hours before the end of the subscription period, it will be deemed that you have agreed to continue the authorization, and the subscription will be automatically renewed. User agreement: https://api.v2.gdxp.com/install_agreement_v2 Privacy agreement: https://api.v2.gdxp.com/privacy_agreement/aiwit Subscription Service agreement: https://api.v2.gdxp.com/renewal

About

Tapp Bell Ring Door

Create digital bells linked to QR codes for real-time conversations. Share access with family, housemates, or colleagues to enable them to ring bells on their devices. Easily manage activation codes and QR codes for your bells.

Highlights
  • Create QR-code digital bells
  • Real-time conversations
  • Multi-device bell access
  • Add family and housemates
  • Manage activation codes
  • Install and manage QR-codes
Features
Read full description

Tapp Bell Ring allows you to create QR-code digital bells which can be rung by scanning QR codes followed by a conversation on real-time with the owner. You can have your bells on multiple devices and you can add your family members, housemates, colleagues, etc. to your bells so that they can also hear the bells on their devices. You can easily add Ring Bells activation codes from this app. Install and manage your Bell Ring QR-codes

Screenshots

Kemo3 screens
Tapp Bell Ring Door3 screens

Verdict

The call

The clearest difference is in-app purchases: Tapp Bell Ring Door at none against Kemo's 13. Tapp Bell Ring Door also leads on ads (none vs shown) and rating (5.0 vs 4.6). Kemo's advantage is ratings volume (94K vs 1) and chart position (#58 vs unranked). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kemo sells 12 in-app purchases, starting at $3.99 per month. Tapp Bell Ring Door asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tapp Bell Ring Door holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Kemo has 94K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Kemo ships an update every 3 weeks, Tapp Bell Ring Door every 5 days. The most recent releases landed on October 29, 2026 and October 10, 2026 respectively.

Scorecard8 real differences · 3 level
Kemo versus Tapp Bell Ring Door: the parameters behind the verdict, then further details
ParameterKemoTapp Bell Ring Door
PriceFreeFree
Rating4.6 (94K ratings)5.0 (1 ratings) — better
Positive reviews17.4% of reviews—
Number of ratings94K — better1
Update frequencyEvery 3 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#58 — better—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size168 MB13 MB
Age rating17+4+
DeveloperNumLake Tech LimitedJoao Vianna

Customer experience

Kemo

All ratings92,015 ratings
Positive89.2%
Neutral3.6%
Negative7.3%
Written reviews2,081 reviews
Positive17.4%
Neutral7.4%
Negative75.2%

Tapp Bell Ring Door

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Kemo

Reported bugs

4 issues
  • Frequent app crashes
  • Inability to format SD card
  • Inconsistent battery life
  • Randomly logged out of app

Requested features

4 requests
  • More customization options
  • Faster live video feed
  • Ability to view recorded videos without subscription
  • Improved motion detection sensitivity

Tapp Bell Ring Door

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Kemo

Subscriptions12
  • Cyclic 15 day, use 1 month$3.991 Month
  • U-Cyclic 14 day, use 1 year3 Months trial$19.991 Year
  • R-cycle 30 day,service 6 month1 Month trial$28.996 Months
Show 9 more
  • R-Service 6 month,cycle 30 day1 Month trial$28.996 Months
  • R-Cyclic 30 day, use 6 month1 Month trial$28.996 Months
  • R-Use 6 month,cyclic 30 day1 Month trial$28.996 Months
  • RA-Use 1 year,cyclic 30 day$29.991 Year
  • R-Cyclic 30 day, use 1 year1 Month trial$29.991 Year
  • R-Use 1 year,cyclic 30 day1 Month trial$29.991 Year
  • R-Service 1 year,cycle 30 day1 Month trial$29.991 Year
  • R-cycle 30 day, service 1 year1 Month trial$29.991 Year
  • RA-Cyclic 30 day, use 1 year$29.991 Year
None

Tapp Bell Ring Door

No in-app purchases

Questions

Is Kemo free?
Kemo is free to download, with in-app purchases available.
Is Tapp Bell Ring Door free?
Tapp Bell Ring Door is free to download, with no in-app purchases.
Which has better reviews, Kemo or Tapp Bell Ring Door?
Tapp Bell Ring Door is rated higher. Kemo averages 4.6 out of 5 from 94K ratings, while Tapp Bell Ring Door averages 5.0 from 1 ratings.
Do Kemo or Tapp Bell Ring Door have ads?
Kemo shows ads; Tapp Bell Ring Door does not.
Which is updated more often, Kemo or Tapp Bell Ring Door?
Kemo ships an update every 3 weeks, and Tapp Bell Ring Door every 5 days. Most recently, Kemo was updated on October 29, 2026 and Tapp Bell Ring Door on October 10, 2026.

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