Smell Annotator vs Coverage Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smell Annotator
This application enables machines to digitally sense and analyze smells using nanomaterial-based technology. It allows users to view, annotate, and recognize smell measurements in real-time, functioning as part of a developer kit.
- Smell recognition
- Smell digitalization and annotation
- Saving and loading measurements
- Real-time measurement visualization
- Offline data collection
- Graph synchronization
Read full descriptionHide full description
Today, machines can see, hear, feel, and even learn. But smell? Not really! Our nanomaterial-based technology enables machines to use an electronic sense of smell. Smell Annotator app is an AI-based software program which is used to view, annotate and analyze smell measurements taken with the Smell Inspector and to recognize annotated smells in real time. The Smell Annotator app is a part of the Smell Inspector Developer Kit. The Smell Annotator gives you access to the smell sensors of your Smell Inspector developer kit. APP FEATURES * Smell recognition [NEW] * Smell digitalization and annotation * Saving measurements and loading saved data * Visualization of real-time and saved measurements with temperature and humidity data * Collect measurement data with or without internet access * Sync graphs for better clarity of data SENSORS * 4 Smell iX16 detector chips * Temperature sensor * Humidity sensor SMELL INSPECTOR The Smell Inspector is a ready-to-use device for anyone and a developer kit. It is suitable for testing and exploring different smell-related applications in the fields of product quality, safety & security, life & care, air quality, and many others. It has four Smell iX 16 detector chips inside, can be connected to a PC, tablet, or smartphone, and can be operated with Smell Annotator software. USER MANUAL For more information about how to use the App and the Smell Inspector device, go to: http://smart-nanotubes.com/downloads/ ABOUT US Along with a great community of industry experts and researchers, SmartNanotubes Technologies shares the vision of digital smell recognition. Our goal is to enable digital smell recognition in a fast and easy way and help our customers to develop product solutions for their own smell and gas detection applications. Visit us at: http://smart-nanotubes.com
Coverage Map
This app provides a crowdsourced map of cellular network performance and coverage across the US, Canada, UK, and Puerto Rico. Users can view real-time speed test data, compare carrier performance, and check signal strength in specific areas. It also includes a built-in speed test to contribute to the map.
- Crowdsourced speed test map
- Real-time performance data
- Download, upload, and latency details
- Carrier and network type filters
- Built-in speed test functionality
- Signal strength mapping (US only)
- Data-driven coverage reports (US only)
Read full descriptionHide full description
Coverage Map helps you find the #1 cell phone carrier in your area. It is a crowdsourced map of cellular networks in the US, Canada, United Kingdom, and Puerto Rico with more countries launching soon. SPEED TEST MAP (All Countries) • Highly accurate: see real-world performance reported by users • Real-time: map updates in real-time as new data comes in • Rich detail: tap any square to see download speeds, upload speeds, and latency for all carriers in that area • Powerful filters: filter by carrier, LTE/5G, download speeds, upload speeds, or see your speed tests only • Helpful color profiles: default, heat map, and best carrier help you visualize and understand the data • Easy to understand: see what carrier performs best in an area at a glance with the Best Carrier color profile BUILT-IN SPEED TEST (All Countries) • Test your speeds: see how fast your LTE or 5G connection is by running a speed test • Accurate results: get accurate results for download speed, upload speed, and latency • Recurring tests: run up to 500 recurring tests automatically and customize the pause duration between tests • Set a data limit: limit how much data the app can use • Tag your tests: tag a test as indoor, outdoor, driving, or other • Improve the Speed Map: running a speed test automatically contributes to the fastest-growing crowdsourced map of cellular networks (note: if your country is not currently supported, when we do launch in your country all of your tests will instantly be mapped and will show up on the map) SIGNAL STRENGTH MAP (US only) • Check reception: see where each carrier has great, good, or poor coverage • Compare coverage footprints: toggle between carriers to see how coverage footprints compare in different areas • Data for every location: the Signal Strength Map uses data from the FCC Broadband Collection, which has coverage data for the continental U.S., Alaska, and Hawaii COVERAGE REPORT MAP (US only) • Data-driven reports: the Coverage Report Map aggregates all available data points to generate detailed reports of cellular coverage & performance in every state, county, city, and ZIP code • Percentage covered: see what percentage of an area each carrier covers • Weighted median: see weighted median values for download speed, upload speeds, and latency for a better picture of real-world cellular performance • Carrier rankings: see what carrier ranks best for coverage, speed, reliability, and overall performance in every area • Distribution graphs: see the distribution graphs for download speeds, upload speeds, and latency • Performance by time of day: see how data speeds vary over the course of day as network traffic picks up Terms of Use and Privacy Policy: https://coveragemap.com/privacy-policy
Screenshots
Verdict
The clearest difference is rating: Coverage Map at 4.7 against Smell Annotator's 1.0. Coverage Map also leads on ratings volume (784 vs 1). Smell Annotator's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, 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.
Coverage Map holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Coverage Map has 784 ratings behind it against 1, so its average is the more settled of the two.
Smell Annotator ships an update monthly, Coverage Map fortnightly. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.
| Parameter | Smell Annotator | Coverage Map |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.7 (784 ratings) — better |
| Positive reviews | — | 67.4% of reviews |
| Number of ratings | 1 | 784 — better |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 53 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | SmartNanotubes Technologies | Coverage Map LLC |
Customer experience
Smell Annotator
Coverage Map
Bugs and requests
Smell Annotator
Not enough reviews yet to summarise bugs or requests.
Coverage Map
Reported bugs
4 issues- Frequent crashes when viewing maps
- Speed test failures and timeouts
- Inconsistent speed test results
- Incorrect location detection
Requested features
5 requests- Low data mode
- Offline coverage map downloads
- Ability to set test duration and frequency
- Display cell tower locations
- Expand to international coverage
In-app purchases
Smell Annotator
No in-app purchases
Coverage Map
No in-app purchases
Questions
Is Smell Annotator free?
Is Coverage Map free?
Which has better reviews, Smell Annotator or Coverage Map?
Do Smell Annotator or Coverage Map have ads?
Which is updated more often, Smell Annotator or Coverage Map?
Other comparisons















