# DoSimple! vs BYK Viscosity Calculator

DoSimple! and BYK Viscosity Calculator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DoSimple! ships an update every 8 days, BYK Viscosity Calculator weekly. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | DoSimple! | BYK Viscosity Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/dosimple/id1567701359/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | Free | — |
| Size | 2 MB | 6 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yu Qi](https://appshunter.io/developer/1553552762) | [BYK Gardner](https://appshunter.io/developer/1488629530) |

## What reviewers say

### DoSimple!

[App page](https://appshunter.io/ios/app/dosimple/id1567701359)

Manage your daily tasks with this lightweight to-do app. It features an intuitive interface for viewing tasks by date, setting priorities, and receiving reminders to ensure you never miss important items.

**Highlights:** Intuitive interface, View ToDos by date, Set priorities, Set reminders, Lightweight design

**Features:** macOS Compatibility

**In-app purchases:** none


### BYK Viscosity Calculator

[App page](https://appshunter.io/ios/app/byk-viscosity-calculator/id6748367137)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DoSimple! free?

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

### Is BYK Viscosity Calculator free?

BYK Viscosity Calculator is free to download, with no in-app purchases.

### Do DoSimple! or BYK Viscosity Calculator have ads?

Neither DoSimple! nor BYK Viscosity Calculator shows ads.

### Which is updated more often, DoSimple! or BYK Viscosity Calculator?

DoSimple! ships an update every 8 days, and BYK Viscosity Calculator weekly. Most recently, DoSimple! was updated on November 3, 2026 and BYK Viscosity Calculator on October 28, 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.*