# Sun Calculator vs TBPS Premium

The clearest difference is update cadence: TBPS Premium at weekly against Sun Calculator's every 48 months. On price, ads, in-app purchases and device support there is nothing between them.

Sun Calculator costs $2.99 and TBPS Premium $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sun Calculator ships an update every 48 months, TBPS Premium weekly. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Sun Calculator | TBPS Premium |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sun-calculator/id1603759487/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Weekly** |
| Monetization | Paid | — |
| Size | 9 MB | 32 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Wu Bin](https://appshunter.io/developer/625703424) |

## What reviewers say

### Sun Calculator

[App page](https://appshunter.io/ios/app/sun-calculator/id1603759487)

This app simulates the sun's movement and sunlight phases in a 3D environment. It calculates sun azimuth, height, and shadow length for any given location and time, with interactive controls for time flow and device orientation.

**Highlights:** Interactive 3D sun movement simulation, Calculates sun azimuth, height, and zenith angle, Sunrise, sunset, dusk, and dawn time calculation, Daytime length and shadow length calculation, Custom object height for shadow distance, Device rotation for compass orientation, Time flow for shadow change preview

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

**In-app purchases:** none


### TBPS Premium

[App page](https://appshunter.io/ios/app/tbps-premium/id6739725463)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sun Calculator free?

Sun Calculator costs $2.99, with no in-app purchases.

### Is TBPS Premium free?

TBPS Premium costs $2.99, with no in-app purchases.

### Do Sun Calculator or TBPS Premium have ads?

Neither Sun Calculator nor TBPS Premium shows ads.

### Which is updated more often, Sun Calculator or TBPS Premium?

Sun Calculator ships an update every 48 months, and TBPS Premium weekly. Most recently, Sun Calculator was updated on October 7, 2026 and TBPS Premium on October 2, 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.*