Comparison

AI Prompt Editor vs Lefty Keyboard

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AI Prompt Editor

Features
Read full description

AI Prompt Editor is an app designed to facilitate more advanced interactions with chat AI. You can edit and send sophisticated instruction sentences, known as "prompts", to the AI based on templates. Additionally, you can manipulate the AI's role and tone through system messages. 【Prompt Editing】 Choose topics from templates and easily create advanced prompts in a fill-in-the-blank format. 【System Messages】 Easily input system messages to control the AI's actions and tone. You can even make the AI speak in a casual tone or say something a bit unusual. There is a daily limit to the number of characters you can use. This app can be accessed via Sign in with Apple (this is for managing usage per user, and does not collect personal information).

About

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.

Highlights
  • Left-handed layout
  • Universal for iPhone/iPad
  • No full access required
  • No tracking
  • No ads
  • Lightweight and battery-friendly
Read full description

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 • Numpad for numbers • 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

AI Prompt Editor2 screens
Lefty Keyboard4 screens

Verdict

The call

The clearest difference is in-app purchases: AI Prompt Editor at none against Lefty Keyboard's 5. AI Prompt Editor also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lefty Keyboard sells 5 in-app purchases, starting at $2.99 per month. AI Prompt Editor asks for nothing beyond the download.

UpkeepUpdate frequency

AI Prompt Editor ships an update every 6 days, Lefty Keyboard every 9 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
AI Prompt Editor versus Lefty Keyboard: the parameters behind the verdict, then further details
ParameterAI Prompt EditorLefty Keyboard
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 days — betterEvery 9 days
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size15 MB10 MB
Age rating17+12+
DeveloperRei OkiyamaEMiR EMRAH UCKAN

In-app purchases

None

AI Prompt Editor

No in-app purchases

5 purchases

Lefty Keyboard

Subscriptions2
  • Lefty Pro Monthly$2.991 Month
  • Lefty Pro7 Days trial$29.991 Year
One-time3
  • Küçük Bahşiş$0.99
  • Orta Bahşiş$2.99
  • Büyük Bahşiş$4.99

Questions

Is AI Prompt Editor free?
AI Prompt Editor is free to download, with no in-app purchases.
Is Lefty Keyboard free?
Lefty Keyboard is free to download, with in-app purchases available.
Do AI Prompt Editor or Lefty Keyboard have ads?
Lefty Keyboard shows ads; AI Prompt Editor does not.
Which is updated more often, AI Prompt Editor or Lefty Keyboard?
AI Prompt Editor ships an update every 6 days, and Lefty Keyboard every 9 days. Most recently, AI Prompt Editor was updated on November 3, 2026 and Lefty Keyboard on October 30, 2026.

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