# Bolster Research Study vs MoodHaven

The clearest difference is in-app purchases: Bolster Research Study at none against MoodHaven's 2. Bolster Research Study also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.6). MoodHaven's advantage is update cadence (weekly vs every 3 months). On price and device support there is nothing between them.

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

Bolster Research Study ships an update every 3 months, MoodHaven weekly. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bolster Research Study | MoodHaven |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Size | 40 MB | 31 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Benjamin Buck](https://appshunter.io/developer/1649651898) | [Craig Sartor](https://appshunter.io/developer/1835782577) |

## What reviewers say

### Bolster Research Study

[App page](https://appshunter.io/ios/app/bolster-research-study/id6446148642)

**In-app purchases:** none


### MoodHaven

[App page](https://appshunter.io/ios/app/moodhaven-mood-tracker/id6752584907)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MoodHaven Pro | $5.99 | per month |
| Annual | $59.99 | per year |


## Frequently asked questions

### Is Bolster Research Study free?

Bolster Research Study is free to download, with no in-app purchases.

### Is MoodHaven free?

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

### Do Bolster Research Study or MoodHaven have ads?

MoodHaven shows ads; Bolster Research Study does not.

### Which is updated more often, Bolster Research Study or MoodHaven?

Bolster Research Study ships an update every 3 months, and MoodHaven weekly. Most recently, Bolster Research Study was updated on October 27, 2026 and MoodHaven 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.*