Sun Day Tracker vs Shralp!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sun Day Tracker
Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.
- Track daily vitamin D intake
- Sunlight exposure monitoring
- Simple interface
- Daily tracking
Read full descriptionHide full description
A simple app to track you daily vitamin D intake from the sun.
Shralp!
Read full descriptionHide full description
Struggle less. Shralp more. Shralp! is your personal surf coach. Tell Shralp! how you surf, how fit you are, what gear you have, and what you want to get better at. Every morning you'll get a surf workout built for you. If you're surfing Shralp! will send a session tip instead. Ask anything about surfing, any time. DAILY SURF WORKOUTS A new workout lands in your chat every morning that's completely personalized to your fitness, your equipment, and your goals. Workouts help you pop up faster, paddle longer, surf with more power, and stay injury free. STEP BY STEP GUIDANCE Get a step-by-step walkthrough for each workout with a video demonstration, rep count, and suggested weight for each exercise. Adjust reps and weight as you go. Swap an exercise that isn't right for you, flag one that hurts, pause and pick it back up later. COMPLETELY PERSONALIZED Workouts are delivered with your profile in mind, and you can change it up on the fly. Ask things like "I'm on the road, can you shorten this and go bodyweight only?" "My shoulder's sore, skip the overhead work." "Make it harder." Shralp! rebuilds the workout on the spot. SESSION TIPS FOR SURF DAYS Tell Shralp! you're surfing and you'll get one thing to work on in the water, with a cue to remember and a video example. ASK ANY SURF QUESTION Boards, technique, travel, training. Ask the way you'd text a friend who happens to know a lot about surfing. ALSO IN THE APP • Sign up in a couple of minutes: ability, goals, fitness, equipment, injuries • Your next workout and your history under the flame, top right • Log in with your mobile number and a one-time code; no password to remember • Optional notifications when your coach messages you • Opened workouts and exercise clips stay available when your connection drops • Delete your account any time from Settings Shralp! is for surfers 18 and older. Requires an iPhone with iOS 18.1 or later and a US mobile number. Shralp! provides general fitness and educational information, not medical advice. Stop if you feel pain and consult a qualified professional before beginning a new exercise program.
Screenshots
Verdict
Sun Day Tracker and Shralp! are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sun Day Tracker | Shralp! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (26 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 26 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 1 MB | 19 MB |
| Age rating | 4+ | 17+ |
| Developer | permissionless tech, llc | JOSHUA RICHARD SCHWARZAPEL |
In-app purchases
Sun Day Tracker
No in-app purchases
Shralp!
No in-app purchases









