1A2B Fun! vs DoLucid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1A2B Fun!
Engage in classic logic puzzles with a Mastermind mode and a challenging 5-digit option. Compete with friends to achieve top ranks and test your deductive reasoning skills in this casual brain teaser.
- Classic Mastermind logic game
- 5-digit challenge mode
- Rankings for friend competition
- Casual brain teaser
- Deductive reasoning puzzles
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---Mastermind--- Enjoy the classic logic game! ---5-digit Mode--- Prepared to embrace the challenge! ---Rank--- Try to challenge your friends and beat them to ground!
DoLucid
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DoLucid is the simplest way to start lucid dreaming. Set your bedtime. The app calculates your REM windows and schedules an alarm at the perfect moment — so you can wake up inside your dreams. FEATURES - REM Alarm: Alarm fires exactly at your REM window, even when your phone is locked or the app is closed. - Dream Entry Mode: Soft audio plays at your REM window without waking you. Let it guide you in. - WBTB Mode: Wake Back To Bed. The most powerful lucid dreaming technique, automated. - Reality Checks: Hourly reminders throughout the day to question reality. The habit that unlocks lucid dreaming. - Dream Journal: Log your dreams, track lucid nights, build your streak. - Knowledge Library: Learn MILD, WILD, DILD and other science-backed techniques. HOW IT WORKS 1. Enter your bedtime 2. Pick your REM window 3. Choose a mode and sound 4. Sleep. The alarm handles the rest. Most people have their first lucid dream within the first week. Download DoLucid and wake up inside your dreams tonight.
Screenshots
Verdict
The clearest difference is ads: DoLucid at none against 1A2B Fun!'s shown. 1A2B Fun!'s advantage is iOS requirement (13.0 vs 26.0). On price, update cadence, 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
Both are free to download. 1A2B Fun! sells 1 one-off in-app purchase and DoLucid sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
1A2B Fun! ships an update every 3 months, DoLucid every 2 months. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.
| Parameter | 1A2B Fun! | DoLucid |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Ming-Ta Yang | Sabri BASOGLU |
In-app purchases
1A2B Fun!
- Remove Bottom Ad$0.99
DoLucid
- Cosmic Sound$0.99
- AI Voice$0.99
- Matrix Sound$0.99
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- Lucid Pro$9.99
