# Surveying Leveling Field Notes vs RTWDMS

The clearest difference is in-app purchases: RTWDMS at none against Surveying Leveling Field Notes's 1. RTWDMS also leads on ads (none vs shown) and update cadence (weekly vs every 5 months). On price and device support there is nothing between them.

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

Surveying Leveling Field Notes ships an update every 5 months, RTWDMS weekly. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Surveying Leveling Field Notes | RTWDMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/surveying-leveling-field-notes/id1462164977/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 32 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HFX Lab](https://appshunter.io/developer/1139262927) | [GCCloud Info System Private Limited](https://appshunter.io/developer/1559340757) |

## 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 |


### RTWDMS

[App page](https://appshunter.io/ios/app/rtwdms/id6745809560)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Surveying Leveling Field Notes free?

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

### Is RTWDMS free?

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

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

Surveying Leveling Field Notes shows ads; RTWDMS does not.

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

Surveying Leveling Field Notes ships an update every 5 months, and RTWDMS weekly. Most recently, Surveying Leveling Field Notes was updated on September 25, 2026 and RTWDMS on September 9, 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.*