Comparison

Microsoft Dynamics 365 vs Sieslack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Microsoft Dynamics 365

This business solution helps professionals engage with customers and stay productive on the go. Update notes, tasks, and records offline or online, and access key sales and service information. It offers a personalized action hub and guided business processes for efficient data management.

Highlights
  • Offline access with synchronization
  • Personalized action hub (Workspace)
  • Enhanced note-taking with device access
  • Access activities, accounts, contacts, leads
  • Guided contextual business processes
  • Visual KPI tracking with charts
  • Customizable list and grid views
Read full description

Microsoft Dynamics 365 is the essential business solution for busy professionals who need to engage with customers while staying productive at work and on the go. Arrive prepared for every appointment and update notes, tasks, and attachments – along with relevant service and sales records – while the details are still fresh. Dynamics 365 provides salespeople, agents, and supervisors with the best tools for managing their data, and updating records and status both online and offline. A seamless set up experience enables you to configure the app once and deploy it everywhere – on mobile, desktop, or tablet. Features · New look and feel with compact layouts and stacked elements, optimized to give essential info at a glance · All-new Workspace, a personalized action hub to help you get to common tasks, suggestions and records quickly · Enhanced note taking experience with seamless access to camera and other device capabilities · Offline access with synchronization, so you can be productive on the go · Access your activities, accounts, contacts, and leads from an easy-to-use home page · Guided contextual business process · Track progress for key performance indicators visually with charts · Access your personalized views of lists and grids so that you see the data most important to you

About

Sieslack

Read full description

Die Sieslack-App ermöglicht für Mandanten der Sieslack Steuerberatungsgesellschaft mbH in 25727 Süderhastedt die Ansicht der betriebswirtschaftlichen Auswertungen (BWA) auch auf dem Smartphone oder Tablet. Diese neue Form der BWA ist einfach zu bedienen, höchst anschaulich aufbereitet und daher leicht zu verstehen. Der Zugang zur Sieslack-App wird über ein von uns eingerichtetes sicheres ADDISON OneClick gewährleistet und setzt die dort bereitgestellten Daten in eine mobile betriebswirtschaftliche Auswertung um. Damit sind wichtige Unternehmensdaten stets präsent und das an jedem beliebigen Ort. Unsere Sieslack-App ist eine individuelle Kommunikationsplattform mit Ihrem Steuerberater und enthält insbesondere die folgenden Anwendungen: ▪ Wesentliche BWA-Daten auf einen Blick ▪ Monatliche Erfolgsrechnung mit Vorjahresvergleich und Veränderung ▪ Analysen der Erträge und Aufwendungen ▪ Analyse der Liquiditätsentwicklung ▪ Analysen der Privatentnahmen und Verwendung ▪ Mobile Jahresabschlusspräsentation Um sich ein Bild von der Darstellung und den Funktionen zu machen, können Sie auch erst einmal die App installieren und sich die darin integrierten Beispieldaten ansehen. Selbstverständlich stehen wir Ihnen für Rückfragen gerne zur Verfügung: Sieslack Steuerberatungsgesellschaft mbH Hauptstrasse 22 25727 Süderhastedt Tel. 04830 90610 Fax. 04830 906162 E-Mail: info@sieslack-steuerberater.de Sieslack Steuerberater – wer nicht mit der Zeit geht, geht mit der Zeit!

Screenshots

Sieslack4 screens

Verdict

The call

The clearest difference is update cadence: Microsoft Dynamics 365 at every 3 weeks against Sieslack's every 8 months. Sieslack's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 14.0). On price, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Microsoft Dynamics 365 ships an update every 3 weeks, Sieslack every 8 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Microsoft Dynamics 365 versus Sieslack: the parameters behind the verdict, then further details
ParameterMicrosoft Dynamics 365Sieslack
PriceFreeFree
Rating4.3 (904 ratings) — better—
Positive reviews23.2% of reviews—
Number of ratings904 — better—
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS14.011.0 — better
Further details — not scored
Size112 MB58 MB
Age rating4+4+
DeveloperMicrosoft CorporationWolters Kluwer Tax & Accounting Deutschland GmbH

Bugs and requests

Microsoft Dynamics 365

Reported bugs

3 issues
  • Login issues and inability to get past login page
  • Compatibility problems with newer iOS versions
  • Syncing and data loss problems after updates

Requested features

3 requests
  • Dark mode option
  • Improved integration with Outlook
  • Support for custom objects and advanced reporting

Sieslack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Microsoft Dynamics 365

No in-app purchases

None

Sieslack

No in-app purchases

Questions

Is Microsoft Dynamics 365 free?
Microsoft Dynamics 365 is free to download, with no in-app purchases.
Is Sieslack free?
Sieslack is free to download, with no in-app purchases.
Do Microsoft Dynamics 365 or Sieslack have ads?
Neither Microsoft Dynamics 365 nor Sieslack shows ads.
Which is updated more often, Microsoft Dynamics 365 or Sieslack?
Microsoft Dynamics 365 ships an update every 3 weeks, and Sieslack every 8 months. Most recently, Microsoft Dynamics 365 was updated on October 7, 2026 and Sieslack on October 5, 2026.

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