Comparison

Double dummy problems vs DuplicateMobile

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

Head to head

Double dummy problems

About

Double dummy problems

Features

Read full description

To provide hundreds of double dummy bridge problems for you to solve. The app gives one solution, it is not the only one, you can work out your own solutions and save them.

About

DuplicateMobile

Features

Read full description

This program allows you to set up Members, Events, and Score duplicate bridge games. This app only works in conjunction with the DuplicateScoring web program.

Screenshots

Double dummy problems3 screens

DuplicateMobile3 screens

Verdict

The call

The clearest difference is ads: DuplicateMobile at none against Double dummy problems's shown. On price, update cadence, in-app purchases 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. Double dummy problems sells 1 one-off in-app purchase and DuplicateMobile sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Double dummy problems ships an update every 3 weeks, DuplicateMobile every 4 weeks. The most recent releases landed on September 9, 2026 and February 5, 2026 respectively.

Scorecard1 real difference · 5 level

Double dummy problems versus DuplicateMobile: the parameters behind the verdict, then further details
Parameter	Double dummy problems	DuplicateMobile
Price	Free	Free
Update frequency	Every 3 weeks — better	Every 4 weeks
Ads	Yes	No — better
In-app purchases	Yes	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	14.1 — better	15.0
Further details — not scored
Size	27 MB	322 MB
Age rating	4+	4+
Developer	丽娜夏	Randy Fuller

In-app purchases

1 purchases

Double dummy problems

One-time1

You will pay to remove ads.$1.99

3 purchases

DuplicateMobile

One-time3

Small Club$99.99
Medium Club$129.99
Large Club$149.99

Questions

Is Double dummy problems free?

Double dummy problems is free to download, with in-app purchases available.

Is DuplicateMobile free?

DuplicateMobile is free to download, with in-app purchases available.

Do Double dummy problems or DuplicateMobile have ads?

Double dummy problems shows ads; DuplicateMobile does not.

Which is updated more often, Double dummy problems or DuplicateMobile?

Double dummy problems ships an update every 3 weeks, and DuplicateMobile every 4 weeks. Most recently, Double dummy problems was updated on September 9, 2026 and DuplicateMobile on February 5, 2026.