CDA – Child Maintenance Help

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Everyone
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Everyone
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About this app

Challenging the Child Maintenance Service? Don't go in with scraps of paper and half-remembered dates.

CDA – Child Maintenance Dispute Assistant – helps you keep the records the CMS actually looks at, and turns them into clear letters and one organised dispute pack when you need to challenge a decision, report a change or make a complaint.

WHEN IT MATTERS, YOUR RECORDS ARE READY
• Nights – CMS works out shared care by nights, so log every night the children stay with you, in seconds
• Payments – what was due, what arrived, and exactly what's missing
• Call log – who you spoke to at the CMS, when, and what they said
• Calendar and reminders, so deadlines and calls don't slip past
• Case Manager – letters, decisions and documents kept together, not lost in a drawer

PUT YOUR CASE CLEARLY
• Ready-made letters to the CMS, filled in with your details
• A case timeline of everything in order, with shared-care band changes marked
• The CMS dispute pack – one PDF with a cover page, your statement, an index and the records and documents you choose. Clear, organised, easy for someone else to follow.

FREE FOR EVERYONE, NO PLAN NEEDED
• CMS calculator – check what should be paid
• CMS guidance – 31 real situations explained in plain English, from shared care and arrears to pensions and missing income
• Support – where to turn for help with money, stress and legal advice

PRIVATE BY DESIGN
Your case is personal. Your records stay on your phone – no account, nothing sent to us. Lock CDA with your fingerprint, and back up with encryption to a file or your own Google Drive. More than one case? Each is kept completely separate.

SIMPLE PRICING
Try everything free for 7 days. Then £4.99 a month, or £29.99 a year – about £2.50 a month.
Launch offer: £26.99 for your first year on the yearly plan, for new subscribers by noon on 16 January 2027.
No ads, ever. No extra in-app purchases. Cancel any time in Google Play.

CDA is independent. It is not part of, or linked to, the Child Maintenance Service, the DWP or the government, and it does not give legal advice.

Questions? support@cdaapp.co.uk · cdaapp.co.uk
Keep child maintenance records, check CMS sums and build your dispute pack.
Updated on
Nov 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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Content rating
Everyone
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App support

About the developer
CDAAPP LTD
support@cdaapp.co.uk
71-75 Shelton Street Covent Garden LONDON WC2H 9JQ United Kingdom
+44 330 229 7830