# Best Proportion Calc vs DeFlow Planner

The clearest difference is ads: DeFlow Planner at none against Best Proportion Calc's shown. DeFlow Planner also leads on update cadence (every 2 weeks vs every 2 months) and monetization model (free vs ad-supported). Best Proportion Calc's advantage is ratings volume (4 vs 1) and iOS requirement (14.0 vs 17.6). On price, rating, review sentiment and in-app purchases 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 Best Proportion Calc against 5.0 for DeFlow Planner. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Best Proportion Calc ships an update every 2 months, DeFlow Planner every 2 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Best Proportion Calc | DeFlow Planner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/best-proportion-calc/id6474536406/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/deflow-planner/id6775451939/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 4 MB | 2 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Denis Belmont](https://appshunter.io/developer/1174113984) | [DOGUKAN DEVECIOGLU](https://appshunter.io/developer/6775451941) |

## What reviewers say

### Best Proportion Calc

[App page](https://appshunter.io/ios/app/best-proportion-calc/id6474536406)

Easily solve proportion problems with a simple and intuitive interface. This app uses the cross product method for quick and accurate calculations across various fields like finance and science. It's available offline and free to use.

**Highlights:** Intuitive proportion calculation, Cross product method for solving equations, Versatile for finance, science, and more, Offline functionality, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


### DeFlow Planner

[App page](https://appshunter.io/ios/app/deflow-planner/id6775451939)

This app helps you organize your daily tasks and plan your schedule with a clean calendar view. It offers quick task entry, completion tracking, and a history of your accomplishments. Enjoy seamless synchronization across your Apple devices without any accounts or advertisements.

**Highlights:** Daily task planning, Calendar-based organization, Task completion tracking, iCloud sync, Light and dark mode, Quick task entry

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Best Proportion Calc free?

Best Proportion Calc is free to download, with no in-app purchases.

### Is DeFlow Planner free?

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

### Which has better reviews, Best Proportion Calc or DeFlow Planner?

Best Proportion Calc and DeFlow Planner are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Best Proportion Calc or DeFlow Planner have ads?

Best Proportion Calc shows ads; DeFlow Planner does not.

### Which is updated more often, Best Proportion Calc or DeFlow Planner?

Best Proportion Calc ships an update every 2 months, and DeFlow Planner every 2 weeks. Most recently, Best Proportion Calc was updated on October 1, 2026 and DeFlow Planner on October 7, 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.*