Deduce vs Spellt
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Deduce
This word game challenges players to guess a hidden mystery word using logic and vocabulary skills. It offers adjustable difficulty levels, tracks progress with statistics, and provides definitions for learned words. Players can also share games and earn achievements.
- Guess hidden mystery words
- Logic and vocabulary challenges
- Adjustable difficulty levels
- Game statistics and progress tracking
- Mystery word definitions
- Save and share games
- Game Center integration and achievements
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Deduce is a fun way to learn and visualize the process of logical deduction. It’s a uniquely challenging game combining logic, vocabulary, and spelling skills (with a small element of luck) played with words. Your goal is to discover a hidden mystery word with as few guesses as possible. Deduce acts as an assistant who enforces the rules, provides hints, keeps track of your progress, collects statistics, manages saved games, and (for Game Center users) awards achievements. Reviewers have said: "One of my favorite games", "Other games get installed-played-uninstalled, but this one stays", "Challenging and addictive", "Very original and lots of fun", "I'm completely hooked", "Hope I can stop playing it soon!" Features: 1. Many thousands of possible games (more than 20,000) 2. Comfort level - Deduce can be as easy or challenging as you like, with optional features to assist your thinking. Play with easier 5 letter words or more difficult 6 letter words. NEVER ANY ADS TO DISTRACT YOU! 3. Game Center integration. Statistical results, scores, and saved games are associated with the active Game Center player. If you are not logged into Game Center, you may supply your own player name for separate game tracking, or play anonymously. If you use Game Center, scores are reported to Classic, Novice, and Puzzle leaderboards. A Champions leaderboard ranks the overall quality of your play over time. Achievements may be earned based on the quality and persistence of your game play. As you earn Deduce achievements discover 50 19th century literary giants of the western world, who were also masters with words. A portrait medallion, with a biography link, is awarded for each achievement -- collect them all! 3. Mystery Word definitions. When you finish a game of Deduce, a definition of the mystery word is provided. Increase your vocabulary as you play more games. Definitions come from’s Apple’s downloadable dictionaries or Wiktionary, whichever is available. 4. Game records. Save your games automatically or selectively. Create beautifully formatted PDFs of your games for sharing or printing. 5. Preferences. Use the Settings App to specify global options for Deduce, such as autosave (which automatically saves a limited or unlimited number of your completed games). 6. Easy sharing with friends or other devices. Find a game really challenging? You can challenge friends to find the same mystery word by sharing a Deduce game number via Airdrop, Messages, or email. Deduce also plays well on a shared device. Each family member can play using their own name or Game Center account with separate saved games, statistics, and (for Game Center users) achievements. 7. A polished user experience with improved marking and simpler game play. Use letter dials or a keyboard to enter your guesses. On an iPhone, enlarge guess list for easier manipulation. Reorder your guesses to see more potential patterns. Having trouble thinking of words? Use the Suggest button! Need advice about your game play? Tap on Sherlock for tips and encouragement. And check out the help info to learn about letter frequencies and common suffixes. 8. Select your favorite photo as a backdrop for playing Deduce, or use one of our two built-in backdrops.
Spellt
A daily word puzzle game where you find as many words as possible from a given set of letters. It offers new daily puzzles and themed packs, with leaderboards to compare your scores with others.
- Daily word puzzles
- Themed puzzle packs
- Game Center leaderboards
- Find words from letter sets
- New puzzle daily
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Spellt is a daily word game. Find as many words as possible from a set of letters. A new puzzle comes out every day! Also play the challenging, themed puzzle packs! Join the Game Center leaderboard to see how you compare to other players!
Screenshots
Verdict
The clearest difference is price: Spellt at Free against Deduce's $2.99. Spellt also leads on update cadence (monthly vs every 4 months) and ratings volume (19 vs 3). Deduce's advantage is review sentiment (88% vs 60%) and chart position (#117 vs unranked). On rating, ads, 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
Spellt is free to download; Deduce costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for Deduce against 4.8 for Spellt. That said, the two scores are not equally well evidenced: Spellt has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 88% of Deduce's written reviews are positive against 60% of Spellt's.
Deduce ships an update every 4 months, Spellt monthly. The most recent releases landed on September 21, 2026 and June 5, 2026 respectively.
| Parameter | Deduce | Spellt |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.7 (3 ratings) | 4.8 (19 ratings) — better |
| Positive reviews | 88.5% of reviews — better | 60.0% of reviews |
| Number of ratings | 3 | 19 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #117 — better | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 46 MB | 12 MB |
| Age rating | 4+ | 9+ |
| Developer | Obviously Genuine | Gabriel Perez-Putnam |
Customer experience
Deduce
Spellt
In-app purchases
Deduce
No in-app purchases
Spellt
No in-app purchases









