311Direct vs Scent Machine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
311Direct
Report neighborhood issues and code violations directly to the 311 Contact Center. Users can attach photos, provide details, and track the status of their submissions. Anonymity is an option, or users can provide contact information for follow-up.
- Report neighborhood problems
- Submit code violations
- Attach photos to reports
- Track report status
- Anonymous reporting option
- Create user profiles
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311Direct is a mobile application which enables the residents of Miami-Dade County to report neighborhood problems and code violations to the 311 Contact Center. Users can attach a photo of the problem Submit relevant details Choose to remain anonymous or provide their contact info for follow-up Check the status of their submitted reports Create a profile for fast reporting Use Ask 311 to contact the call center
Scent Machine
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Scent Machine is a tool based free app that controls external devices to perform tasks through wireless connection queries. We communicate with external devices through Bluetooth connections or WiFi networks. We can use Bluetooth connection to check the operation status of external devices. Remote technology can be used to send real-time instructions to adjust the working status of external devices. Remote operation can also be achieved by scanning and binding through WiFi. Scent Machine allows you to access and operate external devices for work anytime, anywhere.
Screenshots
Verdict
The clearest difference is update cadence: 311Direct at every 2 months against Scent Machine's every 5 months. Scent Machine's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
311Direct ships an update every 2 months, Scent Machine every 5 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | 311Direct | Scent Machine |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (9 ratings) — better | — |
| Positive reviews | 27.3% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 9.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Miami-Dade County | Guangzhou Lanmei Computer Technology Co., Ltd. |
In-app purchases
311Direct
No in-app purchases
Scent Machine
No in-app purchases
Questions
Is 311Direct free?
Is Scent Machine free?
Do 311Direct or Scent Machine have ads?
Which is updated more often, 311Direct or Scent Machine?
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