# Runbuds vs Sun Day Tracker

The clearest difference is update cadence: Runbuds at every 2 days against Sun Day Tracker's monthly. Runbuds also leads on rating (4.9 vs 4.6) and review sentiment (96% vs 83%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Runbuds holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 64 and 26 respectively. Written reviews point the same way: 96% of Runbuds's written reviews are positive against 83% of Sun Day Tracker's.

Runbuds ships an update every 2 days, Sun Day Tracker monthly. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Runbuds | Sun Day Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (64 ratings)](https://appshunter.io/ios/app/runbuds/id6744413545/reviews)** | [4.6 (26 ratings)](https://appshunter.io/ios/app/sun-day-tracker/id6748545544/reviews) |
| Number of ratings | **64** | 26 |
| Positive reviews | **96.3% of reviews** | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | Free | Free |
| Size | 56 MB | 1 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Light Nudge](https://appshunter.io/developer/1731016560) | [permissionless tech, llc](https://appshunter.io/developer/1824145893) |

## What reviewers say

### Runbuds

[App page](https://appshunter.io/ios/app/runbuds/id6744413545)

This app allows you to run with friends in real-time, seeing each other's avatars on a virtual track. It includes a run tracker with lock screen support, group relay challenges, and detailed performance statistics with shareable visualizations.

**Highlights:** Real-time avatar tracking, Live lock screen activities, Group relay challenges, Detailed run statistics, Shareable run visualizations

**In-app purchases:** none

**What reviewers like**

- 🚀 Fun interface
- 👍 Seamless performance
- 👍 Actively updated with new features
- 👍 Motivating community
- 👍 Social and engaging


### Sun Day Tracker

[App page](https://appshunter.io/ios/app/sun-day-tracker/id6748545544)

Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.

**Highlights:** Track daily vitamin D intake, Sunlight exposure monitoring, Simple interface, Daily tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Runbuds free?

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

### Is Sun Day Tracker free?

Sun Day Tracker is free to download, with no in-app purchases.

### Which has better reviews, Runbuds or Sun Day Tracker?

Runbuds is rated higher. Runbuds averages 4.9 out of 5 from 64 ratings, while Sun Day Tracker averages 4.6 from 26 ratings.

### Do Runbuds or Sun Day Tracker have ads?

Neither Runbuds nor Sun Day Tracker shows ads.

### Which is updated more often, Runbuds or Sun Day Tracker?

Runbuds ships an update every 2 days, and Sun Day Tracker monthly. Most recently, Runbuds was updated on October 14, 2026 and Sun Day Tracker on October 17, 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.*