# KnowCamera vs TagCamera

The clearest difference is in-app purchases: KnowCamera at none against TagCamera's 3. KnowCamera also leads on iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TagCamera sells 3 in-app purchases, starting at $2.99 per month. KnowCamera asks for nothing beyond the download.

KnowCamera ships an update fortnightly, TagCamera monthly. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | KnowCamera | TagCamera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 2 MB | 18 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [爱问答科技(北京)有限公司](https://appshunter.io/developer/1795400452) | [功林 胡](https://appshunter.io/developer/1853492924) |

## What reviewers say

### KnowCamera

[App page](https://appshunter.io/ios/app/knowcamera/id6745214202)

**Features:** macOS Compatibility

**In-app purchases:** none


### TagCamera

[App page](https://appshunter.io/ios/app/tagcamera-tag-and-isolate-work/id6756811776)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $19.99 | per year |
| Pro Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is KnowCamera free?

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

### Is TagCamera free?

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

### Do KnowCamera or TagCamera have ads?

Neither KnowCamera nor TagCamera shows ads.

### Which is updated more often, KnowCamera or TagCamera?

KnowCamera ships an update fortnightly, and TagCamera monthly. Most recently, KnowCamera was updated on October 1, 2026 and TagCamera on October 12, 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.*