# GSD Drone Calculator vs Buddha Light

The clearest difference is ads: Buddha Light at none against GSD Drone Calculator's shown. Buddha Light also leads on update cadence (every 5 days vs monthly) and iOS requirement (14.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. GSD Drone Calculator sells 3 in-app purchases, starting at $1.99 per month and Buddha Light sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

GSD Drone Calculator ships an update monthly, Buddha Light every 5 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | GSD Drone Calculator | Buddha Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/gsd-drone-calculator/id6450757319/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 97 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Roman Akhromieiev](https://appshunter.io/developer/1223973006) | [公司名称](https://appshunter.io/developer/1647167140) |

## What reviewers say

### GSD Drone Calculator

[App page](https://appshunter.io/ios/app/gsd-drone-calculator/id6450757319)

Calculate Ground Sample Distance (GSD) for drone missions with this intuitive tool. Input drone specs and camera details to get precise GSD values for optimal mapping, surveying, and photography. Streamline your data collection and enhance accuracy for all aerial endeavors.

**Highlights:** Accurate GSD calculations, Input drone and camera specifications, Real-time GSD values, Optimize flight planning, Intuitive user interface, Save calculations, Image resolution insights

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month | $1.99 | per month |
| Annual | $19.99 | per year |
| Lifetime | $29.99 | one-time |


### Buddha Light

[App page](https://appshunter.io/ios/app/buddha-light/id6749224813)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MedicineBuddha01 | $0.99 | one-time |
| YellowJambhala10 | $0.99 | one-time |
| YellowJambhala11 | $0.99 | one-time |
| Vajra02 | $0.99 | one-time |
| Mandala05 | $0.99 | one-time |
| Mandala06 | $0.99 | one-time |
| SwiftandCourageousGreenTara01 | $0.99 | one-time |
| AutumnMoonlightMother01 | $0.99 | one-time |
| PurpleGoldTara01 | $0.99 | one-time |
| AutumnNightMoonMother01 | $0.99 | one-time |


## Frequently asked questions

### Is GSD Drone Calculator free?

GSD Drone Calculator is free to download, with in-app purchases available.

### Is Buddha Light free?

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

### Do GSD Drone Calculator or Buddha Light have ads?

GSD Drone Calculator shows ads; Buddha Light does not.

### Which is updated more often, GSD Drone Calculator or Buddha Light?

GSD Drone Calculator ships an update monthly, and Buddha Light every 5 days. Most recently, GSD Drone Calculator was updated on October 24, 2026 and Buddha Light on October 10, 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.*