# Knowlens vs odchofficial

The clearest difference is in-app purchases: Knowlens at none against odchofficial's 2. Knowlens also leads on update cadence (every 3 weeks vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. odchofficial sells 2 one-off in-app purchases. Knowlens asks for nothing beyond the download.

Knowlens ships an update every 3 weeks, odchofficial every 8 months. The most recent releases landed on September 12, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Knowlens | odchofficial |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Size | 41 MB | 53 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Knowlens Solutions Pvt Ltd](https://appshunter.io/developer/1384378954) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### Knowlens

[App page](https://appshunter.io/ios/app/knowlens/id1445002674)

**Features:** Vision Pro support

**In-app purchases:** none


### odchofficial

[App page](https://appshunter.io/ios/app/odchofficial/id6479396160)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ODCH BRONZE MEMBERSHIP | $1.99 | one-time |
| ODCH GOLD MEMBERSHIP | $49.99 | one-time |


## Frequently asked questions

### Is Knowlens free?

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

### Is odchofficial free?

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

### Do Knowlens or odchofficial have ads?

Neither Knowlens nor odchofficial shows ads.

### Which is updated more often, Knowlens or odchofficial?

Knowlens ships an update every 3 weeks, and odchofficial every 8 months. Most recently, Knowlens was updated on September 12, 2026 and odchofficial on September 23, 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.*