Bilateral! vs 21 Letters
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bilateral!
Engage in a quick daily word puzzle with a new challenge each day. Share your progress and results easily with friends and family. This game is completely free, with no ads, accounts, or logins required.
- Daily new word puzzle
- Quick gameplay
- Shareable results
- No ads
- No accounts or logins
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Quick daily word game! New puzzle every day. Easily share results with friends and family. Free—without ads, accounts, logins, or passwords.
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: Bilateral! at none against 21 Letters's 6. Bilateral! also leads on ads (none vs shown) and rating (5.0 vs 4.7). 21 Letters's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.2). On price and ratings volume 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. Bilateral! asks for nothing beyond the download.
Bilateral! holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 23 and 64 respectively. Written reviews point the same way: 100% of Bilateral!'s written reviews are positive against 82% of 21 Letters's.
Bilateral! ships an update daily, 21 Letters every 2 days. The most recent releases landed on June 4, 2026 and September 15, 2026 respectively.
| Parameter | Bilateral! | 21 Letters |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (23 ratings) — better | 4.7 (64 ratings) |
| Positive reviews | 100.0% of reviews — better | 81.8% of reviews |
| Number of ratings | 23 | 64 — better |
| Update frequency | Daily — better | Every 2 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | Alec Rogers | Shallot Games, LLC. |
Customer experience
Bilateral!
21 Letters
In-app purchases
Bilateral!
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
