# Surveying Leveling Field Notes vs iHP48

The clearest difference is in-app purchases: iHP48 at none against Surveying Leveling Field Notes's 1. iHP48 also leads on ads (none vs shown) and update cadence (monthly vs every 5 months). Surveying Leveling Field Notes's advantage is review sentiment (100% vs 88%). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Surveying Leveling Field Notes sells 1 one-off in-app purchase. iHP48 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Surveying Leveling Field Notes against 4.6 for iHP48. That said, the two scores are not equally well evidenced: iHP48 has 302 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 100% of Surveying Leveling Field Notes's written reviews are positive against 88% of iHP48's.

Surveying Leveling Field Notes ships an update every 5 months, iHP48 monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Surveying Leveling Field Notes | iHP48 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5 ratings)](https://appshunter.io/ios/app/surveying-leveling-field-notes/id1462164977/reviews) | **[4.6 (302 ratings)](https://appshunter.io/ios/app/ihp48/id1549608953/reviews)** |
| Number of ratings | 5 | **302** |
| Positive reviews | **100.0% of reviews** | 88.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 52 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HFX Lab](https://appshunter.io/developer/1139262927) | [Alexis Lorca](https://appshunter.io/developer/1549608955) |

## What reviewers say

### Surveying Leveling Field Notes

[App page](https://appshunter.io/ios/app/surveying-leveling-field-notes/id1462164977)

This app automates calculations and checks for the Height of Instrument method in surveying. Users can customize column titles and easily share their field notes as CSV files.

**Highlights:** Height of Instrument method calculation, Automatic checking of calculations, Editable column titles, Share as CSV file

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


### iHP48

[App page](https://appshunter.io/ios/app/ihp48/id1549608953)

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:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent emulation of HP48
- 👍 Familiar and nostalgic feel
- 👍 Comprehensive functionality
- 👍 Customizable skins
- 👍 Haptic feedback

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🐛 Missed keystrokes when typing quickly
- 🐛 Blank or flickering display
- 🐛 Compatibility issues with newer iOS versions

**Reported bugs**

- Crashes on startup
- Inability to save state across sessions
- Incompatibility with certain iOS devices

**Requested features**

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


## Frequently asked questions

### Is Surveying Leveling Field Notes free?

Surveying Leveling Field Notes is free to download, with in-app purchases available.

### Is iHP48 free?

iHP48 is free to download, with no in-app purchases.

### Which has better reviews, Surveying Leveling Field Notes or iHP48?

iHP48 is rated higher. Surveying Leveling Field Notes averages 4.6 out of 5 from 5 ratings, while iHP48 averages 4.6 from 302 ratings.

### Do Surveying Leveling Field Notes or iHP48 have ads?

Surveying Leveling Field Notes shows ads; iHP48 does not.

### Which is updated more often, Surveying Leveling Field Notes or iHP48?

Surveying Leveling Field Notes ships an update every 5 months, and iHP48 monthly. Most recently, Surveying Leveling Field Notes was updated on November 3, 2026 and iHP48 on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*