# PrepQ vs BDI Think Tank

PrepQ and BDI Think Tank are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

PrepQ ships an update every 2 months, BDI Think Tank monthly. The most recent releases landed on October 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | PrepQ | BDI Think Tank |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 233 MB | 57 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abdul Rafeeque Parakkal](https://appshunter.io/developer/1464562964) | [Hiren Trivedi](https://appshunter.io/developer/1756280964) |

## What reviewers say

### PrepQ

[App page](https://appshunter.io/ios/app/prepq/id1578502241)

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

**In-app purchases:** none


### BDI Think Tank

[App page](https://appshunter.io/ios/app/bdi-think-tank/id6526484202)

**In-app purchases:** none


## Frequently asked questions

### Is PrepQ free?

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

### Is BDI Think Tank free?

BDI Think Tank is free to download, with no in-app purchases.

### Do PrepQ or BDI Think Tank have ads?

Neither PrepQ nor BDI Think Tank shows ads.

### Which is updated more often, PrepQ or BDI Think Tank?

PrepQ ships an update every 2 months, and BDI Think Tank monthly. Most recently, PrepQ was updated on October 7, 2026 and BDI Think Tank on November 4, 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.*