# Doing Doing vs Knights Heating & Cooling

The clearest difference is in-app purchases: Knights Heating & Cooling at none against Doing Doing's 4. Knights Heating & Cooling also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Doing Doing's advantage is update cadence (every 3 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Doing Doing sells 4 in-app purchases, starting at $1.99 per month. Knights Heating & Cooling asks for nothing beyond the download.

Doing Doing ships an update every 3 days, Knights Heating & Cooling every 2 months. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Doing Doing | Knights Heating & Cooling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (97 ratings)](https://appshunter.io/ios/app/doing-doing/id1533035570/reviews)** | — |
| Number of ratings | **97** | — |
| Positive reviews | 86.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 105 MB | 61 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chaehui Seo](https://appshunter.io/developer/1533035572) | [Nuve Home](https://appshunter.io/developer/1752266972) |

## What reviewers say

### Doing Doing

[App page](https://appshunter.io/ios/app/doing-doing/id1533035570)

This digital diary app helps you organize your days efficiently using a bullet journal style. Track your to-do list with detailed states and share your progress as an image.

**Highlights:** Digital bullet journal, Efficient day organization, Detailed to-do list states, Share to-do list as image, Completed, in progress, migrated, cancelled states

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DoingDoing Pro (Monthly) | $1.99 | per month |
| DoingDoing Pro (Yearly) | $12.99 | per year |
| Premium Pass | $1.99 | one-time |
| Remove Ads | $14.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🎨 Cute and aesthetically pleasing design
- 📆 Helpful for organizing daily tasks
- 🗓️ Ability to migrate tasks to different days
- 💬 Ability to add diary and mood entries

**What reviewers complain about**

- 🔁 Lack of recurring task or repeating schedule feature
- 🔗 No cross-device sync or cloud backup
- 🔍 Limited customization options (fonts, colors, etc.)
- 🔀 Difficulty managing a large number of tasks

**Reported bugs**

- Data loss or disappearance of saved tasks
- Compatibility issues with iOS 15 and widget display
- Occasional crashes or performance issues

**Requested features**

- Sync across devices (iPhone, iPad, etc.)
- Recurring/repeating task feature
- More customization options for fonts, colors, and themes
- Ability to set task deadlines or reminders
- Improved task management for large to-do lists


### Knights Heating & Cooling

[App page](https://appshunter.io/ios/app/knights-heating-and-cooling/id6741054769)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Doing Doing free?

Doing Doing is free to download, with in-app purchases available.

### Is Knights Heating & Cooling free?

Knights Heating & Cooling is free to download, with no in-app purchases.

### Do Doing Doing or Knights Heating & Cooling have ads?

Doing Doing shows ads; Knights Heating & Cooling does not.

### Which is updated more often, Doing Doing or Knights Heating & Cooling?

Doing Doing ships an update every 3 days, and Knights Heating & Cooling every 2 months. Most recently, Doing Doing was updated on October 18, 2026 and Knights Heating & Cooling 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.*