Comparison

HAPGETA AI vs Greyer

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

Head to head
About

HAPGETA AI

Features
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Top-tier Math, Physics & Chemistry Problem-Solving Engine Professional Economics & Finance Intelligent Tool All-Scenario AI Empowerment Benchmark HAPGETA AI is a versatile intelligent tool with dual core advantages in math, physics, chemistry problem-solving and professional economic and financial analysis. Serving students, industry practitioners and office workers, it covers learning, professional research, workplace and daily life scenarios, delivering efficient, accurate and reliable all-round intelligent empowerment. The World’s Best Solutions for Math, Physics & Chemistry HAPGETA AI provides integrated, high-precision academic support for full-stage math, physics and chemistry learning. With comprehensive knowledge coverage and rigorous logical deduction, it suits exam preparation, knowledge consolidation and basic academic research, helping users quickly overcome learning obstacles. It covers core academic fields including algebra, geometry, calculus, mechanics, electromagnetism, thermodynamics, quantum physics, chemical equation balancing, material structure analysis and organic synthesis. It delivers standard solutions for daily exercises and Olympiad-level difficult problems, adopting step-by-step analysis and thinking expansion to help users master core problem-solving logic. Equipped with experimental deduction, error traceability, exam point expansion and error early warning functions, it effectively fixes learning deficiencies. It helps users consolidate foundational knowledge and build solid academic competencies with minimal time cost. Authoritative Economics & Finance Solution Tool HAPGETA AI targets core difficulties in economics and finance, supporting professional model deduction, risk analysis, cross-market hedging and multi-variable strategic decision-making, providing full-cycle practical support for finance learners, practitioners and decision-makers. It solves high-difficulty professional problems such as financial arbitrage calculation, derivative pricing and econometric regression, offering rigorous step-by-step derivation for complex CFA and FRM modeling questions to enhance users’ professional competence. For high-end financial work including asset pricing optimization, quantitative strategy adjustment, actuarial modeling, cross-border financing design and risk stress testing, it integrates professional theories, real-time market data and industry experience to output complete business solutions. It also provides reliable strategic decision support for personal wealth allocation, family asset management, enterprise risk hedging and institutional portfolio adjustment. By analyzing global market trends and policy cycles, it screens optimal, executable and risk-balanced solutions for key decisions. Efficient Workplace Tool System HAPGETA AI features a one-stop office efficiency system to solve common workplace pain points. It one-click generates data-backed business plans, standardized meeting records, professional emails and resumes, and supports table data processing and PPT outline creation. It eliminates repetitive mechanical work, allowing users to focus on core creative work and upgrade output quality. Life & Leisure Intelligent Companion HAPGETA AI integrates diverse practical life functions, including intelligent identification of daily objects, customized travel itinerary planning with expense and risk reminders, music creation, movie recommendation and social copywriting. It enriches leisure time with intelligent creativity and helps users maintain an efficient work-life balance. Combining integrated math and science tutoring, professional financial analysis, efficient workplace tools and rich life functions, HAPGETA AI serves as a reliable all-scenario AI companion, empowering users’ academic progress, career development and high-quality daily life. This application complies with Apple Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Greyer

This AI assistant helps you capture thoughts, organize notes, and manage tasks using voice commands. It integrates with your email and calendar to provide timely suggestions and reminders, keeping your day under control.

Highlights
  • Voice-based idea capture
  • Structured notes and to-dos
  • Customizable reminders
  • Email and calendar integration
  • Proactive suggestions
  • Smart cap compatibility
Read full description

Greyer is your proactive AI assistant for turning everyday thoughts into organized notes, tasks, and reminders. Speak naturally to capture ideas hands-free, wherever they happen. Greyer helps structure what you say so it’s easier to remember, organize, and act on. Connect your email and calendar to stay ahead of what matters. Greyer can surface important messages, upcoming meetings, and timely suggestions—before anything slips through the cracks. With Greyer, you can: • Capture thoughts using your voice • Turn ideas into structured notes and to-dos • Create reminders for the things that matter • Connect your email and calendar • Receive proactive, timely suggestions • Capture on the go with a compatible smart cap Your thoughts, captured. Your day, under control. Your mind, organized. Some features require account permissions, compatible services, or hardware purchased separately.

Screenshots

HAPGETA AI4 screens
Greyer4 screens

Verdict

The call

The clearest difference is in-app purchases: Greyer at none against HAPGETA AI's 3. HAPGETA AI's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads 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. HAPGETA AI sells 3 in-app purchases, starting at $7.99 per 7 days. Greyer asks for nothing beyond the download.

UpkeepUpdate frequency

HAPGETA AI ships an update every 3 weeks, Greyer every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
HAPGETA AI versus Greyer: the parameters behind the verdict, then further details
ParameterHAPGETA AIGreyer
PriceFreeFree
Rating—3.9 (15 ratings) — better
Positive reviews—25.0% of reviews
Number of ratings—15 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size103 MB85 MB
Age rating4+12+
Developer超天才技术开发(北京)有限责任公司GREYER LLC

In-app purchases

3 purchases

HAPGETA AI

Subscriptions3
  • 基础订阅$7.997 Days
  • 高级订阅$19.997 Days
  • PRO订阅$49.997 Days
None

Greyer

No in-app purchases

Questions

Is HAPGETA AI free?
HAPGETA AI is free to download, with in-app purchases available.
Is Greyer free?
Greyer is free to download, with no in-app purchases.
Do HAPGETA AI or Greyer have ads?
Neither HAPGETA AI nor Greyer shows ads.
Which is updated more often, HAPGETA AI or Greyer?
HAPGETA AI ships an update every 3 weeks, and Greyer every 2 weeks. Most recently, HAPGETA AI was updated on October 24, 2026 and Greyer on October 25, 2026.

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