Master One vs Lefty Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Master One
This app guides you in building habits by focusing on one at a time. You can set custom durations, track your progress and streaks, and review your completed habits. It offers a clean, distraction-free interface with options to archive or restart habits.
- One habit focus
- Custom habit durations
- Streak and history tracking
- Mastered habits archive
- Minimalist design
- Archive and restart habits
- Strict mode for perfect streaks
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Master One helps you focus on building habits one at a time. Set your own duration, track streaks, update your progress, and celebrate every success. Features: ◆ One Habit at a Time: Simplify your focus for better results. ◆ Custom Durations: Choose how long to work on each habit. ◆ Streak & History Tracking: Monitor progress, edit past entries, and stay on track. ◆ Mastered Habits: Reflect on your growth with a list of completed habits. ◆ Clean, Minimal Design: Beautiful, simple, and distraction-free. ◆ Archive & Restart – Pause habits anytime and pick them up later. ◆ Strict Mode – Only count progress with perfect streaks—no gaps allowed. ◆ Themes – Personalize your experience with different styles.
Lefty Keyboard
A universal keyboard layout designed specifically for left-handed iPhone and iPad users. It prioritizes privacy with no tracking or full access, and is optimized for performance and battery life.
- Left-handed layout
- Universal for iPhone/iPad
- No full access required
- No tracking
- No ads
- Lightweight and battery-friendly
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Lefty Keyboard — the keyboard built for the 10% who are left out. Every mainstream keyboard is laid out for right-handers. Lefty Keyboard mirrors the layout for your left hand, so one-handed typing finally feels natural. FEATURES • Left-hand optimized layout — keys placed for easy left-thumb reach • 8 English locales (US, UK, AU, CA and more) + Turkish • Spacebar-drag cursor control — slide the spacebar to move the caret • Custom key & letter colors for light and dark mode • Key press sounds • Smart auto-correction with downloadable dictionaries • Lightweight and battery-friendly PRIVACY FIRST The keyboard has NO Full Access and never logs your keystrokes — what you type never leaves your device. Privacy Policy: https://www.hiddenmine.com/apps/lefty-keyboard/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Master One at 5.0 against Lefty Keyboard's 3.0. Lefty Keyboard's advantage is update cadence (every 9 days vs every 2 months). On price, ratings volume, ads 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. Master One sells 1 one-off in-app purchase and Lefty Keyboard sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Master One holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Master One ships an update every 2 months, Lefty Keyboard every 9 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.
| Parameter | Master One | Lefty Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 10 MB |
| Age rating | 4+ | 12+ |
| Developer | Mary Ogawa | EMiR EMRAH UCKAN |
Customer experience
Master One
Lefty Keyboard
In-app purchases
Master One
- LIFE_PURCHASE$0.99
Lefty Keyboard
- Lefty Pro Monthly$2.991 Month
- Destekçi - Aylık$4.991 Month
- Lefty Pro7 Days trial$29.991 Year
- Küçük Bahşiş$0.99
- Orta Bahşiş$2.99
- Büyük Bahşiş$4.99
