# Du Contracts vs Streak Stack

The clearest difference is update cadence: Du Contracts at every 3 days against Streak Stack's fortnightly. Du Contracts also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Du Contracts ships an update every 3 days, Streak Stack fortnightly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Du Contracts | Streak Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/du-contracts/id6754901448/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free | — |
| Size | 19 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dylan Kramer](https://appshunter.io/developer/1850870205) | [Sergio Vazquez](https://appshunter.io/developer/1807606896) |

## What reviewers say

### Du Contracts

[App page](https://appshunter.io/ios/app/du-contracts/id6754901448)

This app helps you build self-trust by creating time-bound "I Will" or "I Won't" commitments. Unfulfilled contracts are visible for a week, serving as a reminder to follow through on your promises to yourself.

**Highlights:** Create "I Will" or "I Won't" contracts, 24-hour contract expiration, Automatic failure tracking, Visible failure reminders, Build self-trust and accountability

**Features:** macOS Compatibility

**In-app purchases:** none


### Streak Stack

[App page](https://appshunter.io/ios/app/streak-stack-habit-tracker/id6776901355)

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

**In-app purchases:** none


## Frequently asked questions

### Is Du Contracts free?

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

### Is Streak Stack free?

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

### Do Du Contracts or Streak Stack have ads?

Neither Du Contracts nor Streak Stack shows ads.

### Which is updated more often, Du Contracts or Streak Stack?

Du Contracts ships an update every 3 days, and Streak Stack fortnightly. Most recently, Du Contracts was updated on October 3, 2026 and Streak Stack on October 9, 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.*