ProChart Mobile vs OttoTasks
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ProChart Mobile
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ProChart Mobile cuts through the complexity of manual chart recorders with a simple scan of a QR code. The app seamlessly captures this information, allowing measurement data to be tracked accurately and instantly. ProChart Mobile captures: - Meter Identification - Date and Time information - Measurement Data such as orifice plate changes or downtime Ensure critical field measurement data is captured correctly while reducing field time, errors, and stress while increasing your auditable accuracy. Any changes to the meter can be noted in the app and downloaded when the chart is integrated.
OttoTasks
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OttoTasks by CarbonAi is a powerful data collection and workflow management platform designed for industries that require structured, efficient, and reliable field data capture. Whether operating in remote locations or managing complex projects, OttoTasks enables seamless data collection, task tracking, and process automationβall in one intuitive system. Built to handle the challenges of distributed operations, OttoTasks ensures that field teams can capture critical data in real-time, even in offline environments. With its flexible design, the platform adapts to a variety of industries, from energy and infrastructure to compliance and asset management. Key Features: - Offline Data Collection β Capture data in the field without internet access. - Task & Workflow Automation β Streamline approvals and recurring processes. - Seamless Data Syncing β Automatically upload data when connectivity is restored. - Customizable Forms & Reports β Tailor data capture to fit your operational needs. - Secure & Scalable β Designed to support teams of any size with enterprise-level security. OttoTasks integrates seamlessly into existing workflows, reducing administrative overhead and improving operational efficiency. Whether tracking field inspections, monitoring assets, or managing compliance tasks, OttoTasks provides the tools needed to maintain accuracy, accountability, and productivity. Take control of your field data and workflows with OttoTasks by CarbonAi.
Screenshots
Verdict
The clearest difference is update cadence: OttoTasks at weekly against ProChart Mobile's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ProChart Mobile ships an update every 3 weeks, OttoTasks weekly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.
| Parameter | ProChart Mobile | OttoTasks |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details β not scored | ||
| Size | 99 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | Critical Control | CarbonAi |
In-app purchases
ProChart Mobile
No in-app purchases
OttoTasks
No in-app purchases







