Comparison

Card Decks vs Retros

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

Head to head
About

Card Decks

Create and share custom card decks for various uses, from team meetings and planning to personal expression and task management. Configure individual cards with display times for timers or reminders, and easily share decks via email or messages.

Highlights
  • Configurable colored text cards
  • Group cards into decks
  • Create custom card sets
  • Timer and countdown functionality
  • Share decks via email/messages
  • Open source
Features
Read full description

Card Decks is a small utility application for your iPhone and iPad which brings you simple, configurable, colored, multi-line text cards that are grouped into card decks. A card deck can be used to show your vote or estimation on a certain topic in a meeting, e.g. in a planning meeting used in agile software development methods like Scrum or Extreme Programming. If the pre-configured cards don't fit your needs, just extend the existing cards or build your own set of cards, e.g. including special estimation numbers like "Pi" or "?". Or, if you are the chair of a session on a conference, you can use a card deck to remind a speaker of the remaining time for the presentation. Or, as a speaker, use a timer card deck to track the remaining minutes. Or, just use your cards to show your opinion, argument, or mood, in a simple, non-verbal way. Or, use the shuffle feature to randomly select a task from a card deck with tasks, or randomly assign tasks to students, team members, etc. Card Decks contains some pre-configured card decks with voting cards, simple colored cards, cards with numbers, colored cards which show remaining minutes, and some timers. Individual card decks can be created with the built-in editor. Each card in a card deck can be configured with a display time. This way, you can build your own countdown timer with individual numbers, texts, reminders, etc. Example timers for 15 and 60 minutes are pre-configured. Additionally, Card Decks supports sending and receiving card decks via e-mail, messages, etc. for sharing your card decks with your friends or colleagues. Either as an URL, or via a JSON-based document. Found a bug? Missing a feature? Drop a line to carddecks@0xc0.de, or open an issue in the project on GitHub. Card Decks is open source and licensed under the terms of the MIT license. Its source code is hosted on GitHub.

About

Retros

This app helps you organize thoughts and improve work through a KPT-based reflection journal. Capture insights, identify problems, and create actionable plans for personal or team growth. Sync your progress across devices and review your history with calendar views.

Highlights
  • KPT-based reflection entries
  • Action plan creation and tracking
  • Calendar and history views
  • Private journaling space
  • iCloud synchronization
Features
Read full description

Retros is a KPT-based reflection journal for teams and personal growth. Capture Keeps, Problems, and Trys, then turn Trys into Action Plans you can toggle and track. Why Retros fits your workflow: • Quick KPT entries with focused writing • Action Plans you can start or cancel anytime • Calendar and History views for review • Private space for safe retrospectives • iCloud sync to keep everything in one place Spend 5 minutes a day to organize your thoughts, improve work, and grow steadily. Download Retros and make every retrospective actionable.

Screenshots

Card Decks4 screens
Retros4 screens

Verdict

The call

The clearest difference is review sentiment: Card Decks at 78% against Retros's 0%. Card Decks also leads on rating (4.5 vs 2.0) and ads (none vs shown). Retros's advantage is update cadence (every 2 days vs every 5 months). On price, ratings volume, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Card Decks holds the better App Store score, 4.5 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 78% of Card Decks's written reviews are positive against 0% of Retros's.

UpkeepUpdate frequency

Card Decks ships an update every 5 months, Retros every 2 days. The most recent releases landed on October 31, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Card Decks versus Retros: the parameters behind the verdict, then further details
ParameterCard DecksRetros
PriceFreeFree
Rating4.5 (2 ratings) — better2.0 (1 ratings)
Positive reviews77.8% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 5 monthsEvery 2 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size1 MB31 MB
Age rating4+4+
DeveloperArne Harrenyoungmo song

Customer experience

Card Decks

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

Retros

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Card Decks

No in-app purchases

None

Retros

No in-app purchases

Questions

Is Card Decks free?
Card Decks is free to download, with no in-app purchases.
Is Retros free?
Retros is free to download, with no in-app purchases.
Which has better reviews, Card Decks or Retros?
Card Decks is rated higher. Card Decks averages 4.5 out of 5 from 2 ratings, while Retros averages 2.0 from 1 ratings.
Do Card Decks or Retros have ads?
Retros shows ads; Card Decks does not.
Which is updated more often, Card Decks or Retros?
Card Decks ships an update every 5 months, and Retros every 2 days. Most recently, Card Decks was updated on October 31, 2026 and Retros on November 4, 2026.

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