# Top Diligence vs Stackd

The clearest difference is in-app purchases: Top Diligence at none against Stackd's 1. Top Diligence also leads on iOS requirement (12.0 vs 18). On price there is nothing between them.

Both are free to download. Stackd sells 1 one-off in-app purchase. Top Diligence asks for nothing beyond the download.

## The numbers

| Metric | Top Diligence | Stackd |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 18 MB | 3 MB |
| Requires iOS | **12.0** | 18 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Dreamware Limited](https://appshunter.io/developer/892413586) | [Nene Nakagawa](https://appshunter.io/developer/1821103094) |

## What reviewers say

### Top Diligence

[App page](https://appshunter.io/ios/app/top-diligence/id6461729027)

**In-app purchases:** none


### Stackd

[App page](https://appshunter.io/ios/app/stackd-study-timer-and-tracker/id6761293821)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackd Pro | $1.99 | one-time |


## Frequently asked questions

### Is Top Diligence free?

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

### Is Stackd free?

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

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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.*