# SunGraph vs T

The clearest difference is review sentiment: T at 100% against SunGraph's 57%. T also leads on rating (5.0 vs 3.2) and update cadence (every 5 days vs every 4 months). SunGraph's advantage is in-app purchases (none vs 5) and ratings volume (14 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. T sells 5 in-app purchases, starting at $3.99 per month. SunGraph asks for nothing beyond the download.

T holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: SunGraph has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 57% of SunGraph's written reviews are positive against 100% of T's.

SunGraph ships an update every 4 months, T every 5 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SunGraph | T |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (14 ratings)](https://appshunter.io/ios/app/sungraph/id321534034/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/t-minus-zero-launch-schedule/id6765963697/reviews)** |
| Number of ratings | **14** | 2 |
| Positive reviews | 56.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 47 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Tremont Air, LLC](https://appshunter.io/developer/309321587) | [T-MINUS ZERO LLC](https://appshunter.io/developer/1896143029) |

## What reviewers say

### SunGraph

[App page](https://appshunter.io/ios/app/sungraph/id321534034)

Calculate sunrise and sunset times for any location globally and any day of the year. Explore earliest/latest times, the equation of time, and sun inclination. Visualize the sun's position on Earth.

**Highlights:** Sunrise and sunset times worldwide, Earliest and latest sunrise/sunset, Equation of time display, Sun inclination at transit, World view of sun's position, User location database

**In-app purchases:** none


### T

[App page](https://appshunter.io/ios/app/t-minus-zero-launch-schedule/id6765963697)

Track upcoming US rocket launches with detailed information on timing, status, and weather. Offers a free version with essential features and an optional Premium subscription for advanced tools like widgets and Live Activities.

**Highlights:** Browse upcoming launches, View launch details (timing, status, weather), Follow specific missions, Mobile launch alerts, Premium widgets and Live Activities, AR Trajectory on supported devices

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Monthly | $3.99 | per month |
| Family Monthly | $5.99 | per month |
| Individual Annual | $39.99 | per year |
| Family Annual | $59.99 | per year |
| Lifetime Premium | $149.99 | one-time |


## Frequently asked questions

### Is SunGraph free?

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

### Is T free?

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

### Which has better reviews, SunGraph or T?

T is rated higher. SunGraph averages 3.2 out of 5 from 14 ratings, while T averages 5.0 from 2 ratings.

### Do SunGraph or T have ads?

Neither SunGraph nor T shows ads.

### Which is updated more often, SunGraph or T?

SunGraph ships an update every 4 months, and T every 5 days. Most recently, SunGraph was updated on October 23, 2026 and T on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*