Comparison

GHL30 vs PromptFluent

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

Head to head
About

GHL30

Features
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About

PromptFluent

Features
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PromptFluent is the app that teaches you the language of AI. Master prompt engineering, technical vocabulary, and professional communication for ChatGPT, Claude, Copilot, and beyond. Works for English, Spanish, and Portuguese (Brazilian) speakers. THREE NATIVE LANGUAGE MODES Choose your language on first launch: - English speakers: 40 AI-focused lessons on prompt engineering and technical communication - Spanish speakers: 80 bilingual lessons combining English learning with AI terminology - Portuguese speakers: the same 80 lessons; the interface and most reference modules are in Portuguese, while lesson explanations, vocabulary and grammar support text are still shown in Spanish while that translation is completed THREE LEARNING MODES STUDY - Work through structured lessons across 16 units covering four proficiency levels (Starter to Architect). Each lesson includes teaching content, vocabulary, grammar, dialogues with AI, and a quiz. Browse our encyclopedia of 560+ tech terms across 15 categories, study with flashcards, master English grammar with 24 tech-focused lessons, and explore 60 copy-ready prompt templates. Discover 10 AI use cases, a glossary of 20 AI tools, 24 reading comprehension passages, and 16 dev culture notes. PRACTICE - Build real AI skills, grouped the way you use AI. ASK: Prompt Workshop (write prompts and get scored on task, detail and technique), Prompt Lab (see how each part of a prompt changes the answer) and Use AI at Work (24 workplace prompts). REFINE: Refine the Answer (pick the best follow-up when the first answer misses). EVALUATE: Trust Check (judge AI answers with a 4-point checklist) and AI Fact-Check & Safe Use (catch AI mistakes and know what not to paste). REVIEW: Spaced Repetition Review Hub. Spanish and Portuguese speakers also get English for AI: Daily Drills, AI Conversations, Listening Hub, Sentence Scramble, Error Drill, Email & Messages and Verb Hub. PLAY - Prompt Debugger (40 challenges to find what a weak prompt is missing) and Daily Challenges, plus Story Mode, Context Guesser and Translation Shootout for English learners. STRUCTURED LESSONS Progress through a curriculum designed for AI communication: - Starter (Lessons 1-20): First contact with AI, basic tech vocabulary, simple prompt patterns, reading AI output - Practitioner (Lessons 21-40): Coding vocabulary, describing code to AI, technical documentation, intermediate prompt engineering - Builder (Lessons 41-60): Complex prompt structures, working with coding agents, technical English grammar, professional communication - Architect (Lessons 61-80): Advanced prompt engineering, system design communication, AI agent orchestration, mastery Each lesson features five interactive sections: Teach, Vocabulary, Grammar, Dialogue, and Quiz. Score 60% or higher to unlock the next lesson. SMART LEARNING TOOLS - Spaced Repetition System (SRS) using the SM-2 algorithm - 50 English verb conjugation tables for technical verbs - 60 prompt templates organized by task type - 24 reading comprehension passages from real tech docs - Progress dashboard with skill radar, weekly goals, and universal bookmarks - Text-to-speech for all English content - Dark mode support GAMIFICATION - 20-level XP progression system (Newbie to Supreme) - 8 achievement badges to unlock - Daily challenges with XP rewards - Streak tracking for consistent habits Works 100% offline. No account required. All data stays on your device.

Screenshots

GHL303 screens
PromptFluent4 screens

Verdict

The call

GHL30 and PromptFluent are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GHL30 ships an update every 4 months, PromptFluent every 3 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
GHL30 versus PromptFluent: the parameters behind the verdict, then further details
ParameterGHL30PromptFluent
PriceFreeFree
Update frequencyEvery 4 monthsEvery 3 months โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details โ€” not scored
Size127 MB38 MB
Age rating4+4+
DeveloperDELLWING ONLINE GmbHBlueinstinct App Solutions

In-app purchases

None

GHL30

No in-app purchases

None

PromptFluent

No in-app purchases

Questions

Is GHL30 free?
GHL30 is free to download, with no in-app purchases.
Is PromptFluent free?
PromptFluent is free to download, with no in-app purchases.
Do GHL30 or PromptFluent have ads?
Neither GHL30 nor PromptFluent shows ads.
Which is updated more often, GHL30 or PromptFluent?
GHL30 ships an update every 4 months, and PromptFluent every 3 months. Most recently, GHL30 was updated on October 27, 2026 and PromptFluent on October 28, 2026.

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