Comparison

Duffle vs seashellOS

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

Head to head
About

Duffle

This comprehensive platform empowers talent managers, sports agents, and agencies to streamline operations. Manage client portfolios, contracts, and revenue with AI-powered insights and a smart calendar. Securely access all your business needs from any device.

Highlights
  • Client portfolio management
  • Contract tracking and management
  • Revenue analysis dashboards
  • Smart calendar for deadlines
  • AI-powered insights and alerts
  • Morning briefing summaries
  • Secure authentication
Features
Read full description

Duffle: The Operating System for Talent Management The complete platform for talent managers, sports agents, and agencies. Run your entire business from anywhere. CLIENT PORTFOLIO Your full roster in one place. Track profiles, team affiliations, contract status, and key dates across every client you represent. CONTRACT MANAGEMENT Monitor player contracts and endorsement deals. Track fees, commissions, payment schedules, and deliverable deadlines so nothing slips through the cracks. REVENUE TRACKING Analyze earnings by client, brand, and time period with visual dashboards that give you a clear picture of your business. SMART CALENDAR Stay on top of meetings, contract milestones, and client events. Never miss a deliverable deadline or payment date. DUFFLE INSIGHTS Get AI-powered alerts on expiring contracts, upcoming birthdays, social media milestones, and market opportunities — delivered when you need them. MORNING BRIEFING Start each day with a personalized summary of your agenda, contract alerts, and priority action items. SECURE & FAST Face ID and Touch ID authentication keep your client data protected. Everything you need to manage talent, track revenue, and grow your agency. All in one place.

About

seashellOS

Read full description

seashellOS is the operating system for your client business — invoices, projects, bookings, contracts, galleries and messaging in one place, so you stop stitching six tools together. Built for anyone who works client by client: studios, freelancers, agencies, consultants, contractors and small service businesses of any kind. RUN THE WHOLE RELATIONSHIP • Clients and projects with everything filed against them • Invoices and payments, with automatic reminders • Bookings and scheduling with calendar sync • Contracts and quotes with e-signatures • Client messaging with file and photo sharing • Galleries and video delivery for finished work KNOW WHERE YOU STAND • Connected banking keeps income and expenses current • Mileage and time tracking • Revenue, outstanding invoices and profitability at a glance WORK FASTER WITH SHELLO Available on Pro+, Shello drafts agreements, builds quotes, writes client replies and surfaces what needs attention in your finances. — MEMBERSHIP seashellOS is free to start: up to 3 clients, 2 invoices a month, project management, contracts and client messaging. Paid plans are auto-renewing subscriptions: • Pro — $9/month or $86/year Unlimited clients and projects, bookings and calendar sync, connected banking, custom branding, mileage and time tracking, 10 GB storage. • Pro+ — $19/month or $180/year Everything in Pro, plus the Shello AI assistant, AI agreement generator, AI quote builder, AI financial insights, template library, 50 GB storage. • Team — $99/month or $948/year Everything in Pro+, plus team seats and shared access, a white-label client portal, custom domain and email branding, unlimited storage, and the gear rental platform. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renew in your Apple Account settings after purchase. Any unused portion of a free trial period is forfeited when you purchase a subscription. Terms of Use: https://seashell-os.com/terms Privacy Policy: https://seashell-os.com/privacy

Screenshots

Duffle4 screens
seashellOS4 screens

Verdict

The call

The clearest difference is in-app purchases: Duffle at none against seashellOS's 6. Duffle also leads on iOS requirement (16.0 vs 26.0). seashellOS's advantage is update cadence (daily vs every 2 weeks). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. seashellOS sells 6 in-app purchases, starting at $9.00 per month. Duffle asks for nothing beyond the download.

UpkeepUpdate frequency

Duffle ships an update every 2 weeks, seashellOS daily. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 6 level
Duffle versus seashellOS: the parameters behind the verdict, then further details
ParameterDuffleseashellOS
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.0
Further details — not scored
Size60 MB61 MB
Age rating4+4+
DeveloperDuffle, Inc.Seashell Studios LLC

In-app purchases

None

Duffle

No in-app purchases

6 purchases

seashellOS

Subscriptions6
  • Pro Tier - 1 Month$9.001 Month
  • Pro+ Tier$19.991 Month
  • Pro Tier - Annual$85.991 Year
Show 3 more
  • Team Plan - Monthly$99.001 Month
  • Pro Plus - Annual$180.991 Year
  • Team Plan - Annual$949.001 Year

Questions

Is Duffle free?
Duffle is free to download, with no in-app purchases.
Is seashellOS free?
seashellOS is free to download, with in-app purchases available.
Do Duffle or seashellOS have ads?
Neither Duffle nor seashellOS shows ads.
Which is updated more often, Duffle or seashellOS?
Duffle ships an update every 2 weeks, and seashellOS daily. Most recently, Duffle was updated on October 2, 2026 and seashellOS on October 6, 2026.

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