Comparison

Idea Hack vs Du Contracts

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Generate random keywords
  • Create custom keyword lists
  • Brainstorm ideas based on keywords
  • Save ideas to memo
  • Supports iPhone, iPad, iPod
Features
Read full description

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.

About

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.

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
Read full description

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

Idea Hack4 screens
Du Contracts3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
Idea Hack versus Du Contracts: the parameters behind the verdict, then further details
ParameterIdea HackDu Contracts
PriceFreeFree
Rating3.0 (1 ratings)5.0 (2 ratings) — better
Number of ratings12 — better
Update frequencyEvery 5 daysEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size23 MB19 MB
Age rating4+4+
DeveloperTAKAHIRO AYADylan Kramer

Customer experience

Idea Hack

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

Du Contracts

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Idea Hack

No in-app purchases

None

Du Contracts

No in-app purchases

Questions

Is Idea Hack free?
Idea Hack is free to download, with no in-app purchases.
Is Du Contracts free?
Du Contracts is free to download, with no in-app purchases.
Which has better reviews, Idea Hack or Du Contracts?
Du Contracts is rated higher. Idea Hack averages 3.0 out of 5 from 1 ratings, while Du Contracts averages 5.0 from 2 ratings.
Do Idea Hack or Du Contracts have ads?
Neither Idea Hack nor Du Contracts shows ads.
Which is updated more often, Idea Hack or Du Contracts?
Idea Hack ships an update every 5 days, and Du Contracts every 3 days. Most recently, Idea Hack was updated on September 23, 2026 and Du Contracts on September 16, 2026.

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