CrankSense vs EPA VSAT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CrankSense
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*******IMPORTANT NOTE******** This App requires external measurement hardware to operate. Contact info@motionics.com for more information. This App works with Motionics wireless crankshaft deflection gage kit. Using the angular position information from the built-in angle sensor of crankshaft gage, this App notifies users when the crankshaft rotates to one of the 5 testing positions. By tapping on the highlighted buttons, users can wirelessly capture deflection readings via Bluetooth Low Energy. Crank web vertical and horizontal deflections are automatically calculated once 5 readings are collected. This App also provides an easy way to generate and manage crankshaft deflection reports. FEATURES: - Wireless sensor connectivity - Test information editing - Sensor measuring crankshaft rotating angle and indicator showing test positions - Crankshaft end play test included - Auto calculating vertical and horizontal deflections - Test report generation including engine information, measurement values, calculated defections, note, signature, location information - Email PDF report and wireless printing - Report manager available
EPA VSAT
This tool helps drinking water and wastewater systems assess risks from malevolent acts and natural hazards. It assists in evaluating improvements for enhanced security and resilience, aiding compliance with regulatory requirements.
- Risk assessment for water systems
- Resilience evaluation
- Security improvement assessment
- Compliance with Safe Drinking Water Act
- Assesses malevolent acts and natural hazards
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VSAT is a tool for assessing risk and resilience at drinking water and wastewater systems. It can be used to estimate risks from malevolent acts and natural hazards and to evaluate improvements for increased security and resilience. The Safe Drinking Water Act (SDWA) section 1433 requires that each community water system serving more than 3,300 people assess the risks to and resilience of its system from malevolent acts and natural hazards. EPA designed VSAT Web 3.0 to help water systems comply with SDWA section 1433.
Verdict
The clearest difference is update cadence: EPA VSAT at fortnightly against CrankSense's every 6 months. CrankSense's advantage is iOS requirement (9.0 vs 16.6). 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.
CrankSense ships an update every 6 months, EPA VSAT fortnightly. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.
| Parameter | CrankSense | EPA VSAT |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPad | iPad |
| Requires iOS | 9.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 20 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Motionics LLC | United States Environmental Protection Agency (USEPA) |
In-app purchases
CrankSense
No in-app purchases
EPA VSAT
No in-app purchases









