Know True vs Varity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Know True
This application helps utility customers with solar panels understand how their energy consumption and solar production affect their electricity bills. It also monitors solar system output, alerting users to potential production issues.
- Track energy usage and solar production
- Monitor impact on utility charges
- Solar production monitoring
- Alerts for solar system downtime
- Notifications for potential solar issues
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Know True-Up allows utility customers who also have solar to see how their energy usage habits and solar energy production combine to impact their utility charges. The software program also has a solar production monitoring component, which notifies the Know-True-Up monitoring team when a solar system has not pushed any power to the grid within a 24 hour period. Utility customers are notified when a potential solar production problem is detected. NOTE: This app is intended for existing Know True-Up customers only.
Varity
Streamline engineering project management with this app. It offers easy logging, quick searching, and smart filtering to organize and track engineering activities. Enhance collaboration and ensure data security for your projects.
- Effortless logging of engineering activities
- Quick search and filtering of log entries
- Real-time collaboration with team members
- Secure and reliable data protection
- Organize project details by date and task
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Introducing "Varity" - The Ultimate Engineering Log App Varity is the all-in-one solution for engineers, designed to streamline and enhance your engineering project management. This powerful app provides a comprehensive set of features, including logging, searching, and filtering capabilities, to revolutionize the way you document and track your engineering activities. Whether you're working on large-scale projects or handling day-to-day tasks, Varity is your go-to tool for seamless engineering log management. Key Features: Easy Logging: Effortlessly record and organize your engineering activities in a structured and intuitive manner. Capture important details such as dates, times, descriptions, results, and observations with just a few taps. Quick Search: Find the information you need in seconds with our advanced search functionality. Simply enter keywords or filter criteria, and Varity will instantly retrieve the relevant entries, saving you valuable time and effort. Smart Filtering: Take control of your engineering logs with powerful filtering options. Customize filters based on dates, project stages, specific tasks, or any other relevant parameters to focus on the data that matters most to you. Enhanced Collaboration: Seamlessly collaborate with your team by sharing and accessing engineering logs in real-time. Varity enables smooth communication and knowledge sharing, facilitating better teamwork and coordination. Secure and Reliable: Rest easy knowing that your sensitive engineering data is protected. Varity ensures the highest level of data security and privacy, giving you peace of mind throughout your projects. Varity is indispensable for engineers, project managers, and researchers who seek to enhance their productivity and efficiency. Say goodbye to cumbersome paper-based logs and embrace the digital revolution with Varity - the ultimate engineering log app. Download Varity now and unlock a new level of precision, organization, and collaboration in your engineering endeavors.
Screenshots
Verdict
The clearest difference is update cadence: Varity at fortnightly against Know True's every 20 months. Know True's advantage is iOS requirement (11.0 vs 13.0). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Know True against 5.0 for Varity. Both are backed by a comparable volume of ratings — 3 and 4 respectively.
Know True ships an update every 20 months, Varity fortnightly. Both last shipped on November 3, 2026.
| Parameter | Know True | Varity |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (4 ratings) |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 20 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 5 MB | 14 MB |
| Age rating | 17+ | 4+ |
| Developer | Solar Data Pros, LLC | Entronix LLC |
Customer experience
Know True
Varity
In-app purchases
Know True
No in-app purchases
Varity
No in-app purchases









