Comparison

ThetaWave vs PromptDeck

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

Head to head
About

ThetaWave

This AI-powered study assistant transforms various learning materials into structured notes, mind maps, flashcards, and quizzes. It helps users learn faster, understand deeper, and retain information longer through intelligent summarization and Q&A capabilities.

Highlights
  • Auto-structured AI notes
  • Flashcards and quizzes
  • AI summary and deep Q&A
  • Mind map generation
  • Progress tracking
  • Supports video, audio, PDF, images, and text
Features
Read full description

Transform Your Learning with ThetaWave – AI Study Notes ThetaWave is an all-in-one AI study assistant that transforms everything you learn into clear, structured, and deeply understandable AI notes. Whether you're studying from videos, audio recordings, PDFs, textbooks, screenshots, or web pages, ThetaWave turns your materials into organized notes, mind maps, flashcards, and quizzes — all inside one intelligent learning workspace. Powered by advanced AI reasoning, ThetaWave helps you learn faster, understand deeper, and retain information longer. Key Features: 1. Auto-Structured AI Notes Convert any content into clean, well-organized study notes in seconds. ThetaWave automatically extracts key points, sections, insights, and takeaways, so you can focus on learning instead of manual note-taking. - Works with video, audio, PDF, images, and text - Generates clear outlines, summaries, definitions, and examples - Highlights essential concepts automatically - Saves hours of rewriting and organizing Ideal for lectures, study sessions, research, and professional content. 2. Flashcards & Quizzes for Better Retention Reinforce what you learn with AI-generated flashcards and quizzes designed for long-term memory. - Automatic flashcard creation from your notes - Smart quizzes to test understanding - Spaced repetition to improve recall - Track your learning progress Perfect for exam preparation, revision, self-study, and continuous learning. 3. AI Summary & Deep Q&A Learn by interacting directly with your notes. - Ask questions and receive accurate, context-aware answers - Clarify difficult concepts - Explore deeper explanations - Compare ideas and analyze relationships - Review key topics quickly It’s like studying with an intelligent tutor, available anytime. Why Choose ThetaWave? - Learn faster with structured, high-quality AI notes - Understand better through reasoning-based AI - Remember more with flashcards and quizzes - Keep everything organized across subjects and formats - One workspace for studying, research, and knowledge building Whether you're a student, professional, researcher, or lifelong learner, ThetaWave helps you turn information into mastery. Built for Every Learning Scenario - University lectures and classroom learning - Online courses and self-guided study - Research papers, textbooks, and academic reading - Professional training and meeting notes - Language learning and personal projects Wherever knowledge is created, ThetaWave elevates it. Start Learning Smarter Today! Experience structured learning powered by AI. Experience ThetaWave. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PromptDeck

Features
Read full description

打造你的 AI 第二大腦,讓提問快人一步。 你是否將大量的 AI 提示詞 (Prompts) 散落在備忘錄、Line 或各種文件中?每次使用 ChatGPT、Claude 或 Midjourney 時,都要重複複製貼上、手動修改關鍵字? PromptDeck 專為追求效率的創作者與開發者設計。它不只是記事本,而是你的「AI 指令自動化工廠」。 【 核心功能 】 Smart Fill 智能填空 (獨家功能) 將靜態文字變成動態模版!在提示詞中設定 [變數],使用時 App 會自動彈出填空欄位。輸入一次,立刻生成完整指令,再也不用手動尋找要修改的位置。 桌面靈感 Widget 支援 iOS 主畫面小工具。將常用的咒語或每日靈感釘選在桌面,點擊即可快速複製,隨時準備好與 AI 對話。 建立你的咒語庫 透過直覺的卡片式介面管理你的收藏。無論是複雜的程式除錯指令、行銷文案架構,還是 AI 繪圖參數,都能井井有條地分類儲存。 精美卡片分享 獨樂樂不如眾樂樂。將你的優質提示詞生成精美的圖片卡片,一鍵分享給朋友或社群。 隱私優先 你的靈感屬於你自己。所有數據皆儲存於本地裝置,無需登入,安全無虞。 【 適用對象 】 Prompt Engineers:管理複雜且精密的 AI 指令。 行銷人員:快速生成不同產品的文案模版。 開發者:儲存常用的 Code Review 或 Debug 提示詞。 AI 繪圖師:記錄並微調 Midjourney 的參數組合。 立即下載 PromptDeck,掌握 AI 的力量,讓工作效率倍增!

Screenshots

ThetaWave4 screens
PromptDeck4 screens

Verdict

The call

The clearest difference is price: ThetaWave at Free against PromptDeck's $9.99. ThetaWave also leads on iOS requirement (15.1 vs 18.6). PromptDeck's advantage is in-app purchases (none vs 10). On update cadence, ads 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

ThetaWave is free to download; PromptDeck costs $9.99 up front. ThetaWave sells 10 in-app purchases, starting at $19.90 per month. PromptDeck asks for nothing beyond the download.

UpkeepUpdate frequency

ThetaWave ships an update fortnightly, PromptDeck every 8 days. The most recent releases landed on October 30, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 7 level
ThetaWave versus PromptDeck: the parameters behind the verdict, then further details
ParameterThetaWavePromptDeck
PriceFree — better$9.99
Rating4.6 (51 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings51 — better—
Update frequencyFortnightlyEvery 8 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.6
Further details — not scored
Size102 MB11 MB
Age rating4+4+
DeveloperThetawaveHIU WAI LIN

In-app purchases

10 purchases

ThetaWave

Subscriptions10
  • Plus$19.901 Month
  • ThetaWave Pro Weekly3 Days trial$19.997 Days
  • ThetaWave Pro Month$21.991 Month
Show 7 more
  • Pro$24.991 Month
  • Plus$38.903 Months
  • ThetaWave Pro Quarterly$47.903 Months
  • Pro$47.903 Months
  • Pro$94.901 Year
  • ThetaWave Pro Year$118.991 Year
  • Pro$118.991 Year
None

PromptDeck

No in-app purchases

Questions

Is ThetaWave free?
ThetaWave is free to download, with in-app purchases available.
Is PromptDeck free?
PromptDeck costs $9.99, with no in-app purchases.
Do ThetaWave or PromptDeck have ads?
Both ThetaWave and PromptDeck show ads.
Which is updated more often, ThetaWave or PromptDeck?
ThetaWave ships an update fortnightly, and PromptDeck every 8 days. Most recently, ThetaWave was updated on October 30, 2026 and PromptDeck on September 15, 2026.

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