# B vs Dooo

The clearest difference is in-app purchases: B at none against Dooo's 2. B also leads on iOS requirement (15.1 vs 18.0). Dooo's advantage is update cadence (every 3 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Dooo sells 2 in-app purchases, starting at $0.99 per year. B asks for nothing beyond the download.

B ships an update monthly, Dooo every 3 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | B | Dooo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/dooo-habit-tracker/id6749438072/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 77.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 61 MB | 17 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [B-FLOW](https://appshunter.io/developer/1626884937) | [Lovely Duck, LLC](https://appshunter.io/developer/1505160193) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-flow/id6535687807)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dooo

[App page](https://appshunter.io/ios/app/dooo-habit-tracker/id6749438072)

Build positive habits effortlessly with this intuitive tracker. Customize goals, view progress with detailed statistics, and stay organized with a to-do list. Syncs across devices and offers a focus mode for enhanced productivity.

**Highlights:** Customizable habit names, icons, and colors, Flexible goal setting with multiple check-in frequencies, Detailed statistics and check-in calendar, To-Do List functionality, Focus mode, iCloud backup and cross-device sync, Data export

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $0.99 | per year |
| One-Time Purchase | $2.99 | one-time |


## Frequently asked questions

### Is B free?

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

### Is Dooo free?

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

### Do B or Dooo have ads?

Neither B nor Dooo shows ads.

### Which is updated more often, B or Dooo?

B ships an update monthly, and Dooo every 3 days. Most recently, B was updated on October 7, 2026 and Dooo on October 16, 2026.

---

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