# Aether Habit Tracker vs Du Contracts

The clearest difference is update cadence: Du Contracts at every 3 days against Aether Habit Tracker's fortnightly. Du Contracts also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.2). On price, ads and in-app purchases there is nothing between them.

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

Aether Habit Tracker ships an update fortnightly, Du Contracts every 3 days. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Aether Habit Tracker | Du Contracts |
| --- | --- | --- |
| 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 | Fortnightly | **Every 3 days** |
| Monetization | — | Free |
| Size | 2 MB | 19 MB |
| Requires iOS | 18.2 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Linton Philip](https://appshunter.io/developer/1848426046) | [Dylan Kramer](https://appshunter.io/developer/1850870205) |

## What reviewers say

### Aether Habit Tracker

[App page](https://appshunter.io/ios/app/aether-habit-tracker/id6754467249)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Aether Habit Tracker free?

Aether Habit Tracker is free to download, with no in-app purchases.

### Is Du Contracts free?

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

### Do Aether Habit Tracker or Du Contracts have ads?

Neither Aether Habit Tracker nor Du Contracts shows ads.

### Which is updated more often, Aether Habit Tracker or Du Contracts?

Aether Habit Tracker ships an update fortnightly, and Du Contracts every 3 days. Most recently, Aether Habit Tracker was updated on September 18, 2026 and Du Contracts on September 16, 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.*