Sonar Mobile vs Flatness
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sonar Mobile
Locate Bluetooth devices and monitor environmental conditions in real-time. Gain insights into asset usage and maintenance needs without traditional tracking solutions. Jumpstart your business's digital transformation with this powerful IoT tool.
- Real-time asset location
- Environmental condition monitoring
- Bluetooth device tracking
- Predictive maintenance alerts
- Asset usage insights
- Digital transformation tool
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Easily find assets and monitor environmental conditions from the palm of your hand with Sonar powered by Thinaer. Built on the Thinaer IoT platform, Sonar is the first-ever tool of its kind to see and locate your Bluetooth devices and use them to create a powerful People, Places, and Things view of your business. - What if you could locate your equipment in real-time without leaving your desk? - What if you could monitor and manage environmental conditions from virtually anywhere? - What if your equipment could raise its hand when it needed maintenance? - What if you knew how your assets were being used and could adjust inventory with the click of a button? - What if you could do all that and more without all the overhead of traditional RTLS or RFID tracking solutions? Sonar Mobile, powered by Thinaer. Built for healthcare but agnostic enough for every industry. Download Sonar Mobile and jumpstart your digital transformation.
Flatness
This app facilitates precise rectangular flatness measurements for applications like motor and pump foundations. It guides users through the entire measurement and alignment process when connected to an AT-400 Ultimate with an M9 sensor via Bluetooth. Generate instant PDF reports of your findings directly on-site.
- Bluetooth connectivity
- Icon-based adaptive user interface
- 3D result views
- Instant PDF report generation
- Guided measurement process
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This is a companion app for performing rectangular flatness measurements, using the AT-400, on typical applications such as a motor and pump foundations. The app guides the user throughout the complete measurement and alignment process when using the Bluetooth® connected ACOEM M9 sensor. This offers an extensive easy to use flatness measurement capability. The PDF Report function provides a fast on-site reporting capability by converting saved measurement reports into PDF files. ---- Note: This app works only with the ACOEM AT-400 Ultimate with the M9 sensor ---- Key Features: - Connected using Bluetooth® - GuideU: Our patented icon-based and color-coded adaptive user interface - New 3D views of the result - Create an instant PDF-report Visit the website www.acoem.com for more information on alignment in general, the ACOEM tools and support of the app.
Screenshots
Verdict
The clearest difference is rating: Flatness at 5.0 against Sonar Mobile's 4.2. Flatness also leads on iOS requirement (12.0 vs 16.0). Sonar Mobile's advantage is update cadence (every 6 weeks vs every 16 months) and ratings volume (10 vs 1). 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.
Flatness holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Sonar Mobile has 10 ratings behind it against 1, so its average is the more settled of the two.
Sonar Mobile ships an update every 6 weeks, Flatness every 16 months. The most recent releases landed on June 1, 2026 and June 10, 2026 respectively.
| Parameter | Sonar Mobile | Flatness |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 6 weeks — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 46 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Advantix THINaër LLC | ACOEM Group |
Customer experience
Sonar Mobile
Flatness
In-app purchases
Sonar Mobile
No in-app purchases
Flatness
No in-app purchases









