# LensTutorial vs DoF Calculator

The clearest difference is review sentiment: DoF Calculator at 93% against LensTutorial's 50%. DoF Calculator also leads on rating (4.6 vs 2.9) and in-app purchases (none vs 4). LensTutorial's advantage is iOS requirement (10.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. LensTutorial sells 4 one-off in-app purchases. DoF Calculator asks for nothing beyond the download.

DoF Calculator holds the better App Store score, 4.6 against 2.9. Both are backed by a comparable volume of ratings — 7 and 34 respectively. Written reviews point the same way: 50% of LensTutorial's written reviews are positive against 93% of DoF Calculator's.

LensTutorial ships an update every 7 months, DoF Calculator fortnightly. The most recent releases landed on September 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | LensTutorial | DoF Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (7 ratings)](https://appshunter.io/ios/app/lenstutorial/id500543869/reviews) | **[4.6 (34 ratings)](https://appshunter.io/ios/app/dof-calculator/id6742732770/reviews)** |
| Number of ratings | 7 | **34** |
| Positive reviews | 50.0% of reviews | **92.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 3 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alf Jorgen Bratane](https://appshunter.io/developer/894390036) | [永晓 邵](https://appshunter.io/developer/1527978041) |

## What reviewers say

### LensTutorial

[App page](https://appshunter.io/ios/app/lenstutorial/id500543869)

Learn photographic lens usage with interactive simulations and calculations. Visualize effects of lens controls and estimate parameters like angle of view and depth of field easily. Supports all modern cameras.

**Highlights:** Interactive lens simulations, Depth of field calculator, Angle of view estimation, 35-mm equivalent calculation, Subject magnification display, Support for modern cameras

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aperture upgrade | $0.99 | one-time |
| Zoom upgrade | $0.99 | one-time |
| Distance upgrade | $0.99 | one-time |
| Built-In lens | $1.99 | one-time |


### DoF Calculator

[App page](https://appshunter.io/ios/app/dof-calculator/id6742732770)

Calculate depth of field for your photos by inputting sensor format, aperture, focal length, and focus distance. It also helps determine hyperfocal distance for optimal focus. Adjust circle of confusion for precise results and switch between metric and imperial units.

**Highlights:** Depth of field calculation, Hyperfocal distance calculation, Adjustable circle of confusion, Metric and imperial unit support, Sensor format selection, Aperture and focal length input

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

**In-app purchases:** none


## Frequently asked questions

### Is LensTutorial free?

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

### Is DoF Calculator free?

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

### Which has better reviews, LensTutorial or DoF Calculator?

DoF Calculator is rated higher. LensTutorial averages 2.9 out of 5 from 7 ratings, while DoF Calculator averages 4.6 from 34 ratings.

### Do LensTutorial or DoF Calculator have ads?

Neither LensTutorial nor DoF Calculator shows ads.

### Which is updated more often, LensTutorial or DoF Calculator?

LensTutorial ships an update every 7 months, and DoF Calculator fortnightly. Most recently, LensTutorial was updated on September 10, 2026 and DoF Calculator on October 11, 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.*