STF Kronos vs Shotday
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STF Kronos
This app syncs with your smartwatch to monitor your fitness performance across various sports. Track heart rate, steps, and sedentary periods to analyze your health metrics. It offers additional features based on your specific smartwatch model.
- Smartwatch synchronization
- Sports performance monitoring
- Heart rate tracking
- Step counting
- Sedentary period analysis
- iOS Health App integration
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Descarga, sincroniza y utiliza la aplicación STF Kronos para sacar el máximo provecho a las funciones de tu smartwatch. Ideal para monitorear tu desempeño en diferentes deportes como excursionismo, ciclismo, correr y caminata en interiores y exteriores. Mide y analiza las métricas de tu frecuencia cardiaca, pasos y periodos de sedentarismo. Consulta otras funciones de acuerdo a tu modelo de smartwatch. Integrates with iOS Health App.
Shotday
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Shotday is a private, on-device tracker for people on GLP-1 medications like Ozempic, Wegovy, Mounjaro, and Zepbound. It's designed for the five things that actually matter on a weekly shot routine — and nothing else. ▸ ROTATE INJECTION SITES Tap a stylized body diagram to log where you injected. Shotday automatically suggests next week's site so you don't bruise the same spot twice. The "last week" zone is greyed out. The recommended next zone pulses gently. That's it — no scrolling, no menus. ▸ A 20-SECOND SIDE-EFFECT LOG On the day after your shot, the home screen replaces the countdown with a one-tap "How are you feeling?" card. Rate nausea, fatigue, constipation, and appetite suppression on a clean 1-5 scale. Tap chips for headaches, heartburn, sulfur burps, dizziness. Add anything else as a custom symptom. Done. ▸ PROTEIN-FIRST FOOD LOG GLP-1 drugs work by killing your appetite. That's the problem. If you don't eat enough protein you lose muscle along with the fat. Shotday computes a daily target from your weight (0.7g per pound of bodyweight) and gives you tiles for the protein staples — Greek yogurt, eggs, chicken, cottage cheese, whey, salmon, tofu, beef. One tap to log. No calories, no macros, no guilt. ▸ DOSE ESCALATION LADDER Standard escalation for semaglutide and tirzepatide is built in. The ladder shows where you are, when you'll be eligible to bump (4 weeks per rung, the standard practice), and what the next dose looks like. Bump up, step down, or enter a custom compounded dose — all logged with a timestamp. ▸ REFILL ALARM Tell Shotday how many doses your pen holds (4 for Ozempic/Wegovy, 1 for Mounjaro/Zepbound vials) and when you last filled. It counts down each time you log a shot and warns you 7 days before you'd run out — early enough to actually call the pharmacy. ———————— ▸ PRIVATE BY DESIGN Shotday has no account system. No email. No cloud. Your data is written to your device's encrypted local storage and never leaves — there is no server to send it to. We don't run analytics. We don't track you. We don't have ads. If you delete the app, your data is gone with it. That's the whole story. ▸ NOTIFICATIONS Optional local reminders for shot day, the post-shot side-effect prompt, and refill alerts. Quiet hours are honored. You can deny notification permission and the app still works — the home screen always shows what's coming up. ▸ DARK MODE Full dark and light themes that follow iOS system settings, or pick one manually. ———————— ▸ HONEST DISCLAIMER Shotday is a tracking tool, not medical advice. It's built from publicly available manufacturer guidance and standard nutrition science. Always consult your prescribing physician before starting, stopping, or changing any medication. In an emergency, call your local emergency number. ▸ SHOTDAY PRO A 14-day free trial unlocks everything. After that, Pro is $4.99/month or $29.99/year (auto-renewable subscription via your Apple ID). Cancel any time in your Apple ID Account Settings. Your data stays on your device whether or not you subscribe. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: STF Kronos at none against Shotday's 2. STF Kronos also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.
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. Shotday sells 2 in-app purchases, starting at $4.99 per month. STF Kronos asks for nothing beyond the download.
| Parameter | STF Kronos | Shotday |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 228 MB | 36 MB |
| Age rating | 4+ | 17+ |
| Developer | STUFFACTORY | SENTHIL KUMAR KANNAN |
In-app purchases
STF Kronos
No in-app purchases
Shotday
- Shotday Pro14 Days trial$4.991 Month
- Shotday Pro14 Days trial$29.991 Year









