# OPENskill vs LogicBrain

The clearest difference is in-app purchases: OPENskill at none against LogicBrain's 3. OPENskill also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. LogicBrain sells 3 in-app purchases, starting at $12.99 per month. OPENskill asks for nothing beyond the download.

OPENskill ships an update every 3 weeks, LogicBrain every 5 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | OPENskill | LogicBrain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 33 MB | 9 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [SiamSquared Technologies (Thailand) Co., Ltd.](https://appshunter.io/developer/333207356) | [Phu Ho](https://appshunter.io/developer/380467843) |

## What reviewers say

### OPENskill

[App page](https://appshunter.io/ios/app/openskill/id6752234032)

**Features:** macOS Compatibility

**In-app purchases:** none


### LogicBrain

[App page](https://appshunter.io/ios/app/logicbrain-logic-training/id6789635234)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LogicBrain Pro Monthly | $12.99 | per month |
| LogicBrain Pro Annual | $59.99 | per year |
| LogicBrain Pro Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is OPENskill free?

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

### Is LogicBrain free?

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

### Do OPENskill or LogicBrain have ads?

Neither OPENskill nor LogicBrain shows ads.

### Which is updated more often, OPENskill or LogicBrain?

OPENskill ships an update every 3 weeks, and LogicBrain every 5 weeks. Most recently, OPENskill was updated on November 8, 2026 and LogicBrain on November 5, 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.*