# IdeaAI vs DiERP

The clearest difference is in-app purchases: DiERP at none against IdeaAI's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. IdeaAI sells 3 in-app purchases, starting at $2.99 per 7 days. DiERP asks for nothing beyond the download.

IdeaAI ships an update every 5 days, DiERP weekly. The most recent releases landed on September 11, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | IdeaAI | DiERP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Size | 132 MB | 101 MB |
| Requires iOS | 15.6 | **15** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Digital Planet](https://appshunter.io/developer/1684662174) | [103 NPT DIGITAL TECHNOLOGY PLC.](https://appshunter.io/developer/1708852072) |

## What reviewers say

### IdeaAI

[App page](https://appshunter.io/ios/app/ideaai/id6450392000)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $2.99 | per 7 days |
| Month | $7.99 | per month |
| Year | $69.99 | per year |


### DiERP

[App page](https://appshunter.io/ios/app/dierp/id6476643804)

**In-app purchases:** none


## Frequently asked questions

### Is IdeaAI free?

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

### Is DiERP free?

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

### Do IdeaAI or DiERP have ads?

Neither IdeaAI nor DiERP shows ads.

### Which is updated more often, IdeaAI or DiERP?

IdeaAI ships an update every 5 days, and DiERP weekly. Most recently, IdeaAI was updated on September 11, 2026 and DiERP on September 25, 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.*