Decastar vs DocumentDiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decastar
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This is the official of the Decastar event. Online tickets purchase, news feed, live results, live video coverage and way more !
DocumentDiary
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DocumentDiary — Train. Document. Improve. The modern training journal for athletes, coaches, and clubs. Plan, document, and analyze every workout in one beautifully designed app — with seamless Garmin and Apple Health sync, real-time coach-athlete collaboration, and a powerful AI Assistant that turns your data into insights. Whether you're chasing a personal best, coaching a team, or running a club, DocumentDiary keeps everything in one place. Built natively for iPhone and iPad with the latest in Apple design. — FOR ATHLETES — Document workouts in seconds — manual entry, voice dictation, or one-tap copy from your coach's plan Personalize your monthly view with custom training types and colors See where you trained on the integrated map view Track distance, training load, elevation, and personal bests Share workouts and synced activities through the iOS share sheet Stay on top of everything with smart push notifications — FOR COACHES — Build detailed training plans and assign them instantly Manage your full athlete roster with sortable, organized views Switch between athletes in a tap and see everything they see Edit each athlete's training colors directly in the monthly view Plan faster with voice dictation and an expanded training type library Get a unified overview of all athletes in one place — GARMIN & APPLE HEALTH SYNC — Connect Garmin Connect and Apple Health to automatically import workouts, distance, training load, elevation, and health data — no manual entry required. — DOCUMENTDIARY AI ASSISTANT — Ask questions across everything you've logged — your workouts, your synced activities, your health data — and get personalized insights, summaries, and answers in seconds. — BUILT FOR APPLE — Native SwiftUI design for iPhone and iPad Sign in with Apple Push notifications for plans, feedback, and important updates Home Screen widgets for sport stats, personal bests, weekly schedule, and more Full English and German language support — PRIVACY & SECURITY — DocumentDiary is fully GDPR-compliant. All personal data is stored and processed on servers in Germany. Data is transmitted with TLS 1.3 encryption. We do not use third-party trackers. — SUBSCRIPTION — DocumentDiary offers auto-renewing subscriptions: DocumentDiary Premium — €6.99 per month DocumentDiary 6-Month Plan — €24.99 (€4.17 / month) A subscription unlocks all premium features, including the AI Assistant, Garmin and Apple Health sync, advanced analytics, training planning tools, custom widgets, and unlimited training documentation. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the same price. You can manage and cancel your subscription anytime by going to your Account Settings on the App Store after purchase. — SUPPORT — We're here to help: In-app support Email: rudorferjulius@documentdiary.com Help & documentation: www.documentdiary.de — LEGAL — Privacy Policy: https://www.documentdiary.de/datenschutz.html Terms of Use (EULA): https://www.documentdiary.de/agb.html DocumentDiary — Document smarter. Train better.
Screenshots
Verdict
The clearest difference is in-app purchases: Decastar at none against DocumentDiary's 2. Decastar also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price 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. DocumentDiary sells 2 in-app purchases, starting at $5.99 per month. Decastar asks for nothing beyond the download.
Decastar ships an update every 3 weeks, DocumentDiary every 3 months. Both last shipped on September 29, 2026.
| Parameter | Decastar | DocumentDiary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 64 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Decastar - adem | JULIUS RUDORFER |
In-app purchases
Decastar
No in-app purchases
DocumentDiary
- DocumentDiary Premium · Monthly$5.991 Month
- DocumentDiary Premium$22.996 Months
Questions
Is Decastar free?
Is DocumentDiary free?
Do Decastar or DocumentDiary have ads?
Which is updated more often, Decastar or DocumentDiary?
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