Bloobi vs 21 Letters
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bloobi
Unscramble letters to form words within a time limit. Earn extra time for each word found. Compete with friends in real-time or play solo to test your vocabulary skills.
- Unscramble letters
- Build words
- Timed gameplay
- Add time to clock
- Multiplayer battle mode
- Live results
- Solo mode
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You have 10 minutes to unscramble a set of 8 unique letters and build as many words as possible. There is always 1 letter that is required to be in the word. Each word you find adds a bit more time to the clock. There are two game modes that you can choose from each day. Battle mode (2-16 players) You can play against your friends in this mode. The results will update live. When you're winning, your screen is green and when you're losing, it turns red. It gets very exciting. Solo mode Don't have anyone else to play with? That's okay. We have a solo mode too. If you make it to Genius alone, then you truly are one. Good luck. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 ads: Bloobi at none against 21 Letters's shown. Bloobi also leads on review sentiment (97% vs 82%). 21 Letters's advantage is update cadence (every 2 days vs fortnightly) and device support (3 vs 1). On price, rating, ratings volume and in-app purchases 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. Bloobi sells 2 in-app purchases, starting at $3.99 per month and 21 Letters sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Bloobi against 4.7 for 21 Letters. Both are backed by a comparable volume of ratings — 34 and 64 respectively. Written reviews are what separate them: 97% of Bloobi's written reviews are positive against 82% of 21 Letters's.
Bloobi ships an update fortnightly, 21 Letters every 2 days. The most recent releases landed on September 20, 2026 and September 15, 2026 respectively.
| Parameter | Bloobi | 21 Letters |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (34 ratings) — better | 4.7 (64 ratings) |
| Positive reviews | 97.0% of reviews — better | 81.8% of reviews |
| Number of ratings | 34 | 64 — better |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 106 MB |
| Age rating | 12+ | 4+ |
| Developer | For One Red AG | Shallot Games, LLC. |
Customer experience
Bloobi
21 Letters
Bugs and requests
Bloobi
Reported bugs
3 issues- Multiplayer join button not working
- Cooperative mode not available as described
- Words flagged as invalid when they are valid
Requested features
7 requests- Access past daily puzzles/archives
- Free play/practice mode
- More accessible ways to suggest words
- Built-in notification for streak
- More than one game per day
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- Russian language support
- Different color themes
21 Letters
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bloobi
- The Pangram Club$3.991 Month
- Pangram Pack$4.99
21 Letters
- August 2024 Ad-Free$2.99
- September 2024 Ad-Free$2.99
- October 2024 Ad-Free$2.99
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- May 2024 Ad-Free$2.99
- June 2024 Ad-Free$2.99
- July 2024 Ad-Free$2.99
