SDJ vs ROJECO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDJ
This smart sweeping robot offers integrated dust collection, sweeping, and mopping functions for smooth, flat surfaces. It operates quietly, providing efficient, hands-free cleaning with long battery life to create a comfortable living space.
- Intelligent electric universal driving
- Dust collection
- Sweeping
- Mopping
- Low noise operation
- Long endurance
Read full descriptionHide full description
SDJ is a sweeper with the function of intelligent electric universal driving. It has the functions of dust collection, sweeping and mopping. It is suitable for the smooth and flat ground to work freely. It is clean in all directions, with low noise and no noise. It has long endurance, time-saving and labor-saving, and creates a comfortable space for you. 智能扫地机是一个智能电动万向行驶功能的扫地机，具有吸尘，扫地，拖地为一体的功能，适合光滑平整的地面自由工作，全方位吸尘清洁，低噪音清洁不吵耳，长久续航耐力持久，省时省力，为您缔造舒适空间。
ROJECO
Manage your pet's intelligent life with this app. It offers remote control for devices, scientific feeding schedules, and the ability to manage multiple smart pet gadgets simultaneously. Share access with family for a connected pet care experience.
- Remote device control
- Manage multiple smart devices
- Scientific feeding schedules
- One-click device sharing
- Fast networking
Read full descriptionHide full description
ROJECO intelligence is a wise choice for pet lover that easily to build a cloud intelligent pet life. 1. Remote control, feel free to turn on whenever and wherever you want. 2. Highly integrated, multiple devices can be added at the same time to realize one app to control multiple intelligent devices. 3. Scientific feeding, flexible setting of regular and quantitative feeding tasks, timely and accurate implementation. 4. One click sharing device enables the whole family to easily enjoy intelligent life. 5. Fast networking, no need to wait and enjoy the fast experience.
Screenshots
Verdict
The clearest difference is review sentiment: ROJECO at 55% against SDJ's 11%. ROJECO also leads on rating (4.8 vs 3.4) and ratings volume (328 vs 5). SDJ's advantage is update cadence (fortnightly vs every 16 months) and iOS requirement (9.0 vs 14.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
ROJECO holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: ROJECO has 328 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 11% of SDJ's written reviews are positive against 55% of ROJECO's.
SDJ ships an update fortnightly, ROJECO every 16 months. The most recent releases landed on September 6, 2026 and September 24, 2026 respectively.
| Parameter | SDJ | ROJECO |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) | 4.8 (328 ratings) — better |
| Positive reviews | 11.1% of reviews | 54.8% of reviews — better |
| Number of ratings | 5 | 328 — better |
| Update frequency | Fortnightly — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 49 MB | 207 MB |
| Age rating | 4+ | 17+ |
| Developer | Tianlang innovation Technology (Shenzhen) Co.,Ltd. | Nanchang YueLing Technology Co., Ltd |
Customer experience
SDJ
ROJECO
Bugs and requests
SDJ
Not enough reviews yet to summarise bugs or requests.
ROJECO
Reported bugs
4 issues- App update caused login errors
- All buttons greyed out, requires update that isn't available
- Alexa integration not working
- Device not appearing in assignment list for Alexa scenes
Requested features
5 requests- Alert mobile when food is low
- Allow more than 10 doses of food per day
- Implement Siri shortcuts integration
- Connect devices with Alexa
- Option to disable animations for accessibility
In-app purchases
SDJ
No in-app purchases
ROJECO
No in-app purchases
