Deco Deck vs The Sum
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Deco Deck
This logic puzzle challenges you to connect cards into groups of five, forming valid hands. Every card must be part of a hand to solve the puzzle, with each puzzle having a single unique solution. Daily free puzzles are available, with more accessible via subscription or a one-time purchase.
- Link cards into groups of five
- Form valid card hands
- Solve unique puzzles
- Daily free puzzles
- Subscription for more puzzles
- Lifetime access option
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Deco Deck is an original logic puzzle from the creator of Semantle.. Your goal is to link the cards on the board in connected groups of five, such that each group makes a valid "hand". To win, every card on the board must be part of a hand. Each puzzle has only one solution. There are two free puzzles every day. More puzzles are available by subscription. You can purchase an auto-renewing subscription through an In-App Purchase. The subscription is $4.99 per year. Or you can buy lifetime access for $9.99. • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • The subscription may not be cancelled during the active subscription period, but you turn off auto-renewal by visiting your iTunes Account Settings after purchase. • EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
The Sum
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The Sum : Math And Puzzle is a simple yet challenging game where you swipe to move blocks and combine numbers to reach the correct sum. Each level invites you to think carefully, plan your moves, and solve satisfying math puzzles. Easy to learn but increasingly challenging, the game blends logic, arithmetic, and spatial thinking into smooth puzzle experience. How to Play - Swipe to move number blocks - Combine numbers to reach the target sum - Find the correct calculation to complete the level - Solve puzzles with strategy and logic Features - Simple swipe controls - Clean and relaxing puzzle design - Progressive difficulty - A calm experience for players who enjoy numbers and puzzles Wether you enjoy brain teaser or casual puzzle games, The Sum : Math And Puzzle offers a fun way to challenge your mind.
Screenshots
Verdict
The clearest difference is in-app purchases: The Sum at none against Deco Deck's 1. The Sum also leads on update cadence (every 3 weeks vs every 5 months). Deco Deck's advantage is ads (none vs shown). On price, device support and iOS requirement 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
Both are free to download. Deco Deck sells 1 one-off in-app purchase. The Sum asks for nothing beyond the download.
Deco Deck ships an update every 5 months, The Sum every 3 weeks. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.
| Parameter | Deco Deck | The Sum |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 70 MB | 144 MB |
| Age rating | 4+ | 4+ |
| Developer | David Turner | LIM SING CHYUAN |
In-app purchases
Deco Deck
- Eternal$9.99
The Sum
No in-app purchases









