Idea Hack vs Du Contracts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Idea Hack
This app helps spark creativity by generating three random keywords to inspire new ideas. Users can register their own keywords and use the tool to brainstorm solutions or concepts, saving their thoughts in a memo field.
- Generate random keywords
- Create custom keyword lists
- Brainstorm ideas based on keywords
- Save ideas to memo
- Supports iPhone, iPad, iPod
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The idea is not float ... Submit ideas until tomorrow ... At that time, this app It is an application that idea gives rise. It is a tool to help the idea of creation. Ideas is important. It is also possible to change the world in one idea. By utilizing the three keywords you can create an idea that did not come up until now. Head will activate only the keyword than thinking through the use randomly. ---------------------------- How to use ---------------------------- As much as you can be registered keywords related to it. ※ There are also unexpected ideas and to register a keyword that are not relevant are created. Start the idea hack tool. Three keywords will come out, so consider the relevant ideas. Write to the memo field that noticed. When it does not come out and go to the next keyword. Notice when many of the ideas have been created.
Du Contracts
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.
- Create "I Will" or "I Won't" contracts
- 24-hour contract expiration
- Automatic failure tracking
- Visible failure reminders
- Build self-trust and accountability
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The relationship you have with yourself is the most important one you’ll ever build. When you promise yourself you’ll call your doctor, do the dishes, or hit the gym—you owe it to yourself to follow through. At your core, you are two people constantly interacting with one another: the one who decides, and the one who acts. That’s Du! — the dialogue between you and yourself. Introducing Du Contracts. This app lets you create simple “I Will” or “I Won’t” contracts with a 24-hour expiration. Within that window, you either complete or fail your contract. If you don’t update it in time, it automatically moves to your Failure Folder. Failures stay visible on your home page for at least seven days—a gentle but firm reminder of your unfinished commitments. Hold yourself accountable. Build trust with yourself. Start your first Du Contract today.
Screenshots
Verdict
The clearest difference is rating: Du Contracts at 5.0 against Idea Hack's 3.0. Idea Hack's advantage is iOS requirement (8.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Du Contracts holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Idea Hack ships an update every 5 days, Du Contracts every 3 days. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.
| Parameter | Idea Hack | Du Contracts |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (2 ratings) — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 23 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | TAKAHIRO AYA | Dylan Kramer |
Customer experience
Idea Hack
Du Contracts
In-app purchases
Idea Hack
No in-app purchases
Du Contracts
No in-app purchases








