Comparison

iHP48 vs Surface Tech AI

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

Head to head
About

iHP48

This app brings the powerful HP48 calculator experience to your mobile device. It offers enhanced performance, seamless file management, and a customizable interface with support for various HP calculator models. Enjoy a familiar and convenient calculator solution without needing extra hardware.

Highlights
  • Supports HP38, HP39, HP48, HP49, HP50 calculators
  • Haptic feedback and customizable zoom options
  • Seamless file transfer via iTunes and Files app
  • Cloud storage integration (iCloud, OneDrive, Dropbox)
  • Object saving/loading and copy/paste functionality
  • Access to calculator packages, skins, and ROMs
  • Internal file manager and extensible settings
Features
Read full description

Introducing iHP48 - Your Ultimate Calculator Companion iHP48 emerges from the necessity to revive the unparalleled calculator experience cherished by university students and engineers across various disciplines. Reviving the legacy of the original calculator, iHP48 delivers enhanced performance without the burden of carrying an additional device in your bag. Experience the simplicity and convenience of having the powerful HP48 at your fingertips once again. Key Features: Wide Compatibility: iHP48 supports HP38, HP39, HP48, HP49, and HP50 calculators. Easily configure your preferred calculator with the Fetch options. Enhanced User Experience: Enjoy Haptic feedback on keypress and customizable haptic styles via Settings. Zoom options tailored to your iPhone and preferences, including a new lift zoom for XS devices. Seamless File Management: Transfer files effortlessly from your computer using iTunes on both PC's and MacOS. Access iHP48 files directly from your device using the Files app and share them with any compatible iOS app. Copy files to and from your favorite cloud providers supported by the Files app, such as iCloud Drive, OneDrive, and Dropbox. Convenient Object Handling: Save or Load objects to/from your device using Files, ensuring your favorite .lib is readily available on your iHP48 stack. Copy and Paste supported objects seamlessly between iOS and the iHP48 Stack. Comprehensive Library: Access a rich library of Calculator Packages, Skin Collections, ROM's, and useful libraries like Meta Kernel and QPI. Intuitive Interface: Benefit from an internal File Manager for simplified file management and an extensible Settings administration accessible directly from the Settings app or via a shortcut from the iHP48 menu. Customizable Experience: Save your current calculator configuration for easy access. Explore special features embedded in various skins, including screen swipes, sounds, and orientation options. No Hidden Costs: iHP48 is completely free, devoid of any enterprise, professional, plus, or ultimate versions. There are no hidden features or payments required. We greatly appreciate any support you offer as we continue to enhance and refine iHP48. For additional information, visit https://www.thinkchile.com/iHP48. Experience the power of the legendary HP48, reinvented for the modern era with iHP48.

About

Surface Tech AI

This AI-powered workspace consolidates conversations, documents, and business tools into a secure platform. It allows users to ask questions in natural language and receive instant, accurate answers, while also generating professional content and integrating with CRM systems.

Highlights
  • AI-powered natural language queries
  • Document intelligence and semantic search
  • Automated content generation (emails, reports)
  • CRM system integration
  • Knowledge base creation from conversations
  • Secure, role-based access
Features
Read full description

Ask Alfred – Your AI Command Center Ask Alfred is an AI-powered workspace designed to help teams work faster and smarter. It brings conversations, documents, business tools, and data into one secure platform, so you can focus on results instead of switching between apps. With Ask Alfred, you can ask questions in natural language and instantly get accurate answers. The AI understands your documents, workflows, and connected tools to deliver meaningful results in seconds. Ask Alfred enables powerful document intelligence. Upload files, search across them using semantic understanding, and retrieve insights based on meaning rather than keywords. The platform also simplifies everyday business tasks. Generate professional emails, reports, PDFs, and other content automatically, ready to share or download. Ask Alfred integrates with CRM systems, allowing you to search contacts, companies, and deals using natural language. No manual filtering or complex dashboards required. Conversations can be transformed into reusable knowledge. Build internal FAQs and shared answers that grow smarter over time, helping teams collaborate and stay aligned. Designed for mobile and enterprise use, Ask Alfred provides a personalized and secure experience with role-based access, data isolation, and scalable infrastructure. Ask Alfred is ideal for sales teams, support teams, operations, and leadership who need instant access to information and tools wherever they work. Install Ask Alfred and turn your workflows into one intelligent AI experience.

Screenshots

iHP484 screens
Surface Tech AI4 screens

Verdict

The call

The clearest difference is ratings volume: iHP48 at 270 against Surface Tech AI's 1. Surface Tech AI's advantage is rating (5.0 vs 4.7) and iOS requirement (13.0 vs 15.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Surface Tech AI holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: iHP48 has 270 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

iHP48 ships an update monthly, Surface Tech AI every 3 weeks. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
iHP48 versus Surface Tech AI: the parameters behind the verdict, then further details
ParameteriHP48Surface Tech AI
PriceFreeFree
Rating4.7 (270 ratings)5.0 (1 ratings) — better
Positive reviews88.2% of reviews—
Number of ratings270 — better1
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size6 MB32 MB
Age rating4+4+
DeveloperAlexis LorcaSURFACE TECH LLC

Customer experience

iHP48

All ratings270 ratings
Positive90.7%
Neutral3.0%
Negative6.3%
Written reviews195 reviews
Positive88.2%
Neutral4.1%
Negative7.7%

Surface Tech AI

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

iHP48

Reported bugs

3 issues
  • Crashes on startup
  • Inability to save state across sessions
  • Incompatibility with certain iOS devices

Requested features

4 requests
  • Dark mode option
  • Ability to disable haptic feedback
  • Support for HP50G emulation
  • Improved keyboard mapping and arrow key functionality

Surface Tech AI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iHP48

No in-app purchases

None

Surface Tech AI

No in-app purchases

Questions

Is iHP48 free?
iHP48 is free to download, with no in-app purchases.
Is Surface Tech AI free?
Surface Tech AI is free to download, with no in-app purchases.
Which has better reviews, iHP48 or Surface Tech AI?
Surface Tech AI is rated higher. iHP48 averages 4.7 out of 5 from 270 ratings, while Surface Tech AI averages 5.0 from 1 ratings.
Do iHP48 or Surface Tech AI have ads?
Neither iHP48 nor Surface Tech AI shows ads.
Which is updated more often, iHP48 or Surface Tech AI?
iHP48 ships an update monthly, and Surface Tech AI every 3 weeks. Most recently, iHP48 was updated on September 19, 2026 and Surface Tech AI on September 10, 2026.

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