PuzzleVision vs 21 Letters
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
PuzzleVision
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App Store Description for Puzzle Vision Puzzle Vision: Brain-Teasing Logic Adventure Embark on a Mind-Bending Journey! Dive into the world of Puzzle Vision, a captivating logic puzzle game designed to challenge your brain and sharpen your problem-solving skills. Whether you're playing on your iPhone, iPad, or the immersive Apple Vision Pro, Puzzle Vision offers an unparalleled touch and spatial computing experience.
21 Letters
A daily word game where you build connecting words to achieve a high score. Compete with friends and family using the same daily set of letters. The game ends when you run out of letters or can no longer form words.
- Daily word challenges
- Connecting word building
- High score tracking
- Friend and family competition
- Unique daily letter sets
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21 Letters every day. Build connecting words and score as high as you can. Once you run out of letters, or can't make any more words, your daily round is over. Share your score with your friends and family - since everyone has the same letters for any given day, every day is a competition!
Screenshots
Verdict
The clearest difference is in-app purchases: PuzzleVision at none against 21 Letters's 6. PuzzleVision also leads on ads (none vs shown). 21 Letters's advantage is update cadence (every 2 days vs every 5 days) and iOS requirement (12.0 vs 17.0). On price 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
Both are free to download. 21 Letters sells 6 one-off in-app purchases. PuzzleVision asks for nothing beyond the download.
PuzzleVision ships an update every 5 days, 21 Letters every 2 days. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.
| Parameter | PuzzleVision | 21 Letters |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (64 ratings) — better |
| Positive reviews | — | 81.8% of reviews |
| Number of ratings | — | 64 — better |
| Update frequency | Every 5 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | Constructivist Toolkit (CT), LLC | Shallot Games, LLC. |
In-app purchases
PuzzleVision
No in-app purchases
21 Letters
- August 2024 Ad-Free$2.99
- September 2024 Ad-Free$2.99
- October 2024 Ad-Free$2.99
Show 3 moreShow fewer
- May 2024 Ad-Free$2.99
- June 2024 Ad-Free$2.99
- July 2024 Ad-Free$2.99









