# knockOut Study vs SegLingo

The clearest difference is update cadence: knockOut Study at every 5 days against SegLingo's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. knockOut Study sells 3 in-app purchases, starting at $8.99 per month and SegLingo sells 1 in-app purchase, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

knockOut Study ships an update every 5 days, SegLingo every 10 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | knockOut Study | SegLingo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 months |
| Size | 306 MB | 191 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MAKSYM KHAMAD](https://appshunter.io/developer/1823494759) | [仲川 刘](https://appshunter.io/developer/1725413036) |

## What reviewers say

### knockOut Study

[App page](https://appshunter.io/ios/app/knockout-study/id6747940497)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| knockOut Pro Monthly | $8.99 | per month |
| knockOut Pro Monthly | $73.90 | per year |
| knockOut Pro Life | $99.99 | one-time |


### SegLingo

[App page](https://appshunter.io/ios/app/seglingo-immersive-reader/id6754619452)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |


## Frequently asked questions

### Is knockOut Study free?

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

### Is SegLingo free?

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

### Do knockOut Study or SegLingo have ads?

Neither knockOut Study nor SegLingo shows ads.

### Which is updated more often, knockOut Study or SegLingo?

knockOut Study ships an update every 5 days, and SegLingo every 10 months. Most recently, knockOut Study was updated on October 5, 2026 and SegLingo on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*