Best Proportion Calc vs DeFlow Planner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Best Proportion Calc
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.
- Intuitive proportion calculation
- Cross product method for solving equations
- Versatile for finance, science, and more
- Offline functionality
- Free to use
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Dive into the world of math without the hassle with our super rule of three calculator! Whether you're an intrepid student, a numbers whiz, or just curious, our app is here to make proportion calculations as easy as child's play, thanks to the genius cross product method. Why our calculator is great: Intuitive Calculation: No more headaches! Enter your values, let our calculator do its magic, and voilà, your results are there! Product in Turbo Cross: Goodbye to headaches with complicated equations! Our app uses the cross product method to solve everything from simple equations to crazy puzzles. Versatile: Whether you need to solve problems related to finance, science, or other fields, our app offers exceptional versatility. Offline and Free as Air: Wherever you are, our app follows you. No need for Internet, no limits. Get ready to experience a mathematical adventure like never before. Download our rule of three calculator now and let the math magic happen!
DeFlow Planner
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.
- Daily task planning
- Calendar-based organization
- Task completion tracking
- iCloud sync
- Light and dark mode
- Quick task entry
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DeFlow is a simple and focused daily planner for iPhone, iPad, and Mac. Create tasks for today or future dates, organize your day with a clean calendar view, complete tasks, and review your progress in history. With iCloud sync, your tasks stay up to date across your Apple devices. Features: • Daily task planning • Quick task entry • Calendar-based task organization • Task completion and history • iCloud sync across iPhone, iPad, and Mac • Light and dark mode support • English and Turkish language support • No accounts, no ads, no tracking DeFlow is built for people who want a clean, private, and simple way to plan their day.
Screenshots
Verdict
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.
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 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.
| Parameter | Best Proportion Calc | DeFlow Planner |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Denis Belmont | DOGUKAN DEVECIOGLU |
Customer experience
Best Proportion Calc
DeFlow Planner
In-app purchases
Best Proportion Calc
No in-app purchases
DeFlow Planner
No in-app purchases
Questions
Is Best Proportion Calc free?
Is DeFlow Planner free?
Which has better reviews, Best Proportion Calc or DeFlow Planner?
Do Best Proportion Calc or DeFlow Planner have ads?
Which is updated more often, Best Proportion Calc or DeFlow Planner?
Other comparisons
