# Know True vs Varity

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.

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.

## The numbers

| Metric | Know True | Varity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/know-true-up/id1528799124/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/varity/id6449006317/reviews) |
| Number of ratings | 3 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 5 MB | 14 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Solar Data Pros, LLC](https://appshunter.io/developer/1528799126) | [Entronix LLC](https://appshunter.io/developer/1092254159) |

## What reviewers say

### Know True

[App page](https://appshunter.io/ios/app/know-true-up/id1528799124)

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.

**Highlights:** Track energy usage and solar production, Monitor impact on utility charges, Solar production monitoring, Alerts for solar system downtime, Notifications for potential solar issues

**Features:** macOS Compatibility

**In-app purchases:** none


### Varity

[App page](https://appshunter.io/ios/app/varity/id6449006317)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Know True free?

Know True is free to download, with no in-app purchases.

### Is Varity free?

Varity is free to download, with no in-app purchases.

### Which has better reviews, Know True or Varity?

Know True and Varity are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do Know True or Varity have ads?

Neither Know True nor Varity shows ads.

### Which is updated more often, Know True or Varity?

Know True ships an update every 20 months, and Varity fortnightly. Most recently, Know True was updated on November 3, 2026 and Varity on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*