CORE app vs TimeInvoicer Practice Billing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CORE app
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Willkommen in der neuen CORE App! (2024) CORE smartwork ist die einzige Mitarbeiter-App, die alle Bereiche der internen Kommunikation und Organisation abbildet. Vom Speise- zum Ausbildungsplan, von der IT-Security Richtlinie bis hin zur Mitarbeiterumfrage. Alles in einem - ganz unkompliziert und einfach bedienbar. FUNKTIONEN: - Erstellung von Infobeiträgen - Social Interactions: Vom Gefällt mir bis hin zum Kommentar und zur Lesebestätigung - Teilnahme an Umfragen - Kursanmeldungen - Einsicht meiner Ziele - Erstellung von Workflows - Shoppen von Arbeits- und Büromaterialien - Bewerbungen abwickeln - Ideen einbringen - Wissen dokumentieren und teilen - Ressourcen ausborgen/verwalten
TimeInvoicer Practice Billing
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TimeInvoicer is a practice management and invoicing software. This app is not a medical device and does not provide any diagnoses, treatments, or therapeutic recommendations. For medical questions, please consult a qualified healthcare professional. Create invoices, fee notes and session notes directly on your iPhone or iPad. TimeInvoicer is a mobile practice app for therapists, psychologists, counsellors, doctors, coaches and solo practices. No PC required. The calendar you already use becomes the basis for billing, PDF invoices, session documentation and practice documents. WHAT MAKES TIMEINVOICER DIFFERENT • Work directly on your iPhone or iPad • Create invoices and fee notes from calendar appointments • Add session notes and link them to the appointment • Use the ICD-10 code directory with search and favourites • Prepare practice documents and reimbursement forms • Premium: custom document templates with placeholders for contact, appointment and report information • Create professional PDF invoices with logo, bank details and signature • Bill half units such as 0.5, 1.5 and 2.5 correctly • Add an EPC QR code so clients can pay by bank transfer • Track open invoices, income, expenses and reports • Use client contacts from your device • Keep your data local and available offline CALENDAR INSTEAD OF DOUBLE ENTRY Many practice systems make you enter appointments twice. TimeInvoicer uses the calendar you already work with. Tap an appointment, add the service, create the PDF and share it. SESSION NOTES FOR YOUR PRACTICE Document what matters in a counselling or consultation session. Notes stay connected to the appointment, so billing and documentation remain in one clear workflow. EXPORTS FOR ACCOUNTING AND TAX • CSV tax export for BMD, RZL and DATEV (Premium) • ELDA WAH XML export for social insurance billing • Collective invoice for one client over a chosen period • Prepare expenses and receipts for your tax return • Follow up on income and outstanding amounts • Bill recurring services faster • Turn older calendar appointments into invoices afterwards FOR PRACTICES IN AUSTRIA ÖGK, BVAEB and SVS rates are built in and kept up to date. You can create fee notes for private services, collective invoices and attendance confirmations, and prepare reimbursement applications and practice documents with templates for psychotherapy, psychology, counselling, private practice and other fields. PRIVACY AND CONTROL TimeInvoicer is local-first. Your practice data stays on your device, with no cloud requirement and no account needed for the core workflow. Session notes are stored separately and encrypted on the device. WHO IT IS FOR Psychotherapists, clinical psychologists, health psychologists, counsellors, coaches, private-practice doctors, physiotherapists, occupational therapists and self-employed professionals who bill appointments. For professionals who want a leaner workflow: calendar appointment, session note, invoice PDF, done.
Screenshots
Verdict
The clearest difference is in-app purchases: CORE app at none against TimeInvoicer Practice Billing's 5. TimeInvoicer Practice Billing's advantage is update cadence (every 3 days vs every 10 days). On price, ads, device support and iOS requirement 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. TimeInvoicer Practice Billing sells 5 in-app purchases, starting at $8.90 per month. CORE app asks for nothing beyond the download.
CORE app ships an update every 10 days, TimeInvoicer Practice Billing every 3 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | CORE app | TimeInvoicer Practice Billing |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 77 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | CORE smartwork GmbH | Roland Konig |
In-app purchases
CORE app
No in-app purchases
TimeInvoicer Practice Billing
- Plus Monatlich14 Days trial$8.901 Month
- Premium Monatlich14 Days trial$17.901 Month
- Plus Jährlich14 Days trial$89.001 Year
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- Gründerpreis Jährlich14 Days trial$89.001 Year
- Premium Jährlich14 Days trial$179.001 Year





