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Head-to-head · Tax Deduction Tracking Software

FlyFin vs Cadus

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score FlyFin #2 in Tax Deduction Tracking Software 8.6/10 From $20/mo · 7-day trial ✓ 0 of 4 features Visit FlyFin
Cadus #7 in Tax Deduction Tracking Software 7.4/10 Free plan · paid from $12.99/mo Free plan✓ 4 of 4 features Visit Cadus

FlyFin leads on 0 checks, Cadus on 5, and 0 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFlyFin · 8.6/10
  • Free planonly Cadus
  • Most featuresCadus · 4 of 4

FlyFin scores higher on our rubric for tax deduction tracking software: 8.6 against 7.4 out of 10; our editors rank them #2 and #7.

Cadus offers free plan; FlyFin doesn't. Cadus offers mileage tracking; FlyFin doesn't publish it. Cadus offers auto trip detection; FlyFin doesn't publish it. Cadus offers receipt capture; FlyFin doesn't publish it. Cadus offers bank transaction sync; FlyFin doesn't publish it.

FlyFin is the better fit for self-employed people wanting deductions plus tax filing. Cadus is the better fit for solo operators tracking Schedule C expenses on mobile.

  • FlyFin fits best

    Self-employed people wanting deductions plus tax filing

  • Cadus fits best

    Solo operators tracking Schedule C expenses on mobile

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature FlyFin 8.6/10 Visit ↗ Cadus 7.4/10 Visit ↗
At a glance
Editor score 8.6 7.4
Ranking #2 in Tax Deduction Tracking Software #7 in Tax Deduction Tracking Software
Best for Self-employed people wanting deductions plus tax filing Solo operators tracking Schedule C expenses on mobile
Pricing model Paid Free plan + paid
Starting price Not published Not published
Free plan — ✓ (best)
Free trial — —
Deployment Mobile Mobile
Platforms iOS, Android iOS, Android
Support Email, Live chat Email
Integrations 12,000+ integrations 1 integrations
Built for Solo, Small business Solo, Small business
Features FlyFin 0/4 · Cadus 4/4
Mileage tracking Not published ✓ (best)
Auto trip detection Not published ✓ (best)
Receipt capture Not published ✓ (best)
Bank transaction sync Not published ✓ (best)
Specs
Expense categorization Not published Both
Mobile platforms Not published Both
Our review
Pros
  • Analyzes linked-account expenses to identify potential deductions
  • CPA guidance, consultations and federal and state filing are included
  • Supports document uploads, audit insurance and an exportable Form 1040 summary
  • Free plan includes Schedule C categories, mileage tracking, and CSV export
  • Pro imports bank transactions through Plaid and scans receipts automatically
  • Pro adds quarterly tax worksheets and accountant-sharing tax packages
Cons
  • Monthly plans do not include tax filing under the fair-usage policy
  • Starts at $20 per month, with no free plan
  • Mobile-only deployment may not suit people seeking a desktop service
  • Available only on iOS and Android, with no desktop deployment
  • Bank sync and unlimited smart receipt scans require Pro
  • Organizes tax records but does not prepare or file tax returns
Our verdict

Freelancers, gig workers, self-employed people and business owners can use FlyFin to track expenses, identify potential deductions and get CPA support for tax filing. It also supports W-2 taxpayers. The mobile service connects financial…

Read the review →

Cadus is a mobile app for U.S. freelancers, gig workers, contractors, and small business owners who want to organize business income, expenses, receipts, mileage, invoices, and tax records. Its Schedule C categories and profit-and-loss…

Read the review →
  1. FlyFinTax Deduction Tracking Software 8.6From $20/mo · 7-day trial
  2. CadusTax Deduction Tracking Software 7.4Free plan · paid from $12.99/mo

Strengths and trade-offs

  • FlyFin — where it wins

    • Analyzes linked-account expenses to identify potential deductions
    • CPA guidance, consultations and federal and state filing are included
    • Supports document uploads, audit insurance and an exportable Form 1040 summary

    Where it doesn't

    • Monthly plans do not include tax filing under the fair-usage policy
    • Starts at $20 per month, with no free plan
    • Mobile-only deployment may not suit people seeking a desktop service

  • Cadus — where it wins

    • Free plan includes Schedule C categories, mileage tracking, and CSV export
    • Pro imports bank transactions through Plaid and scans receipts automatically
    • Pro adds quarterly tax worksheets and accountant-sharing tax packages

    Where it doesn't

    • Available only on iOS and Android, with no desktop deployment
    • Bank sync and unlimited smart receipt scans require Pro
    • Organizes tax records but does not prepare or file tax returns
  • FlyFin8.6/10 · From $20/mo · 7-day trial

    Expense analysis, deduction tracking and CPA-supported filing in a paid mobile service.

    Visit FlyFinFull verdict →
  • Cadus7.4/10 · Free plan · paid from $12.99/mo

    A mobile-first way to organize Schedule C records, with automation and tax exports in Pro.

    Visit CadusFull verdict →

More comparisons

All tax deduction tracking software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update