# BULO vs Haven

The clearest difference is in-app purchases: BULO at none against Haven's 2. BULO also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Haven sells 2 in-app purchases, starting at $5.99 per month. BULO asks for nothing beyond the download.

BULO ships an update every 3 weeks, Haven every 2 weeks. The most recent releases landed on October 18, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | BULO | Haven |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (5 ratings)](https://appshunter.io/ios/app/bulo/id1509793638/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 55 MB | 42 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [BREATHINGS Co., Ltd.](https://appshunter.io/developer/1509793637) | [BRUNO LAUREANO DOS SANTOS CONSULTORIA EM TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/1866033764) |

## What reviewers say

### BULO

[App page](https://appshunter.io/ios/app/bulo/id1509793638)

This app guides users through breathing exercises to improve lung health. It offers measurement and training features to help users understand and enhance their respiratory function.

**Highlights:** Breathing exercise guidance, Lung measurement, Respiratory training, Health tracking

**In-app purchases:** none


### Haven

[App page](https://appshunter.io/ios/app/haven-migraine-tracker/id6759208651)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $5.99 | per month |
| Premium Access | $49.99 | per year |


## Frequently asked questions

### Is BULO free?

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

### Is Haven free?

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

### Do BULO or Haven have ads?

Neither BULO nor Haven shows ads.

### Which is updated more often, BULO or Haven?

BULO ships an update every 3 weeks, and Haven every 2 weeks. Most recently, BULO was updated on October 18, 2026 and Haven on October 28, 2026.

---

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