Kemo vs Tapp Bell Ring Door
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Easy device setup
- Instant visitor/motion alerts
- High-definition video monitoring
- Two-way audio communication
- Remote access from anywhere
- Automatic subscription renewal
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- 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
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.
- Create QR-code digital bells
- Real-time conversations
- Multi-device bell access
- Add family and housemates
- Manage activation codes
- Install and manage QR-codes
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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
Verdict
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
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.
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.
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.
| Parameter | Kemo | Tapp Bell Ring Door |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (94K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 17.4% of reviews | — |
| Number of ratings | 94K — better | 1 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #58 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 168 MB | 13 MB |
| Age rating | 17+ | 4+ |
| Developer | NumLake Tech Limited | Joao Vianna |
Customer experience
Kemo
Tapp Bell Ring Door
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
Kemo
- 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
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- 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
Tapp Bell Ring Door
No in-app purchases









