# Focus Chart vs LensKit

The clearest difference is in-app purchases: Focus Chart at none against LensKit's 3. Focus Chart also leads on review sentiment (100% vs 70%) and iOS requirement (12.0 vs 15.0). LensKit's advantage is rating (4.9 vs 4.4) and update cadence (every 2 months vs every 16 months). On price, ads and device support there is nothing between them.

Both are free to download. LensKit sells 3 in-app purchases, starting at $4.99 per month. Focus Chart asks for nothing beyond the download.

LensKit holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: LensKit has 56 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 100% of Focus Chart's written reviews are positive against 70% of LensKit's, so the app with the better star average is not the one people write more warmly about.

Focus Chart ships an update every 16 months, LensKit every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Focus Chart | LensKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (9 ratings)](https://appshunter.io/ios/app/focus-chart/id808174720/reviews) | **[4.9 (56 ratings)](https://appshunter.io/ios/app/lenskit-lens-tools/id1523521746/reviews)** |
| Number of ratings | 9 | **56** |
| Positive reviews | **100.0% of reviews** | 70.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | **Free** | Freemium |
| Size | 44 MB | 165 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cadrage GmbH](https://appshunter.io/developer/793232743) | [Zak Ray](https://appshunter.io/developer/890528996) |

## What reviewers say

### Focus Chart

[App page](https://appshunter.io/ios/app/focus-chart/id808174720)

This tool displays focus charts with a siemens star to assist with camera lens adjustments and testing. It keeps your device awake during critical focus calibration, offering two distinct charts for easy switching.

**Highlights:** Two focus charts with siemens star, Prevents device standby, Back focus adjustment, Lens testing, Swipe left/right for chart switching

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

**In-app purchases:** none


### LensKit

[App page](https://appshunter.io/ios/app/lenskit-lens-tools/id1523521746)

This app provides professional tools for filmmakers and cinematographers, offering extensive lens specifications, camera coverage simulations, and advanced depth of field calculations. It helps plan shoots, make on-set decisions, and ensure compatibility with various cameras and lenses, including Netflix-approved formats.

**Highlights:** Extensive lens database (2000+ lenses), Camera sensor coverage simulation, Lens matching for various configurations, Depth of field calculator, Shot preview and framing simulation, Netflix 4K mandate compliance tool

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Subscription | $49.99 | per year |
| Lifetime Access | $99.99 | one-time |


## Frequently asked questions

### Is Focus Chart free?

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

### Is LensKit free?

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

### Which has better reviews, Focus Chart or LensKit?

LensKit is rated higher. Focus Chart averages 4.4 out of 5 from 9 ratings, while LensKit averages 4.9 from 56 ratings.

### Do Focus Chart or LensKit have ads?

Neither Focus Chart nor LensKit shows ads.

### Which is updated more often, Focus Chart or LensKit?

Focus Chart ships an update every 16 months, and LensKit every 2 months. Most recently, Focus Chart was updated on October 23, 2026 and LensKit on October 24, 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.*