# Polltrix vs HDiary

The clearest difference is in-app purchases: Polltrix at none against HDiary's 2. Polltrix also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HDiary sells 2 in-app purchases, starting at $0.99 per month. Polltrix asks for nothing beyond the download.

Polltrix ships an update every 3 weeks, HDiary every 6 weeks. The most recent releases landed on September 18, 2026 and August 2, 2026 respectively.

## The numbers

| Metric | Polltrix | HDiary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 60 MB | 10 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Mauro Cristofoli](https://appshunter.io/developer/1672683544) | [韶芳 尤](https://appshunter.io/developer/1608508366) |

## What reviewers say

### Polltrix

[App page](https://appshunter.io/ios/app/polltrix/id6455376727)

**Features:** macOS Compatibility

**In-app purchases:** none


### HDiary

[App page](https://appshunter.io/ios/app/hdiary/id6470147729)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited moments | $0.99 | per month |
| Unlimited moments | $6.99 | per year |


## Frequently asked questions

### Is Polltrix free?

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

### Is HDiary free?

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

### Do Polltrix or HDiary have ads?

Neither Polltrix nor HDiary shows ads.

### Which is updated more often, Polltrix or HDiary?

Polltrix ships an update every 3 weeks, and HDiary every 6 weeks. Most recently, Polltrix was updated on September 18, 2026 and HDiary on August 2, 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.*