# DayDistance vs surveying height calculation

The clearest difference is review sentiment: DayDistance at 100% against surveying height calculation's 0%. DayDistance also leads on price (Free vs $1.99) and update cadence (every 5 months vs every 26 months). surveying height calculation's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

DayDistance is free to download; surveying height calculation costs $1.99 up front. DayDistance sells 1 one-off in-app purchase. surveying height calculation asks for nothing beyond the download.

DayDistance ships an update every 5 months, surveying height calculation every 26 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | DayDistance | surveying height calculation |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/surveying-height-calculation/id954160537/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 26 months |
| Monetization | **Free** | Paid |
| Size | 4 MB | 1 MB |
| Requires iOS | 26.0 | **7.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tohru Itoh](https://appshunter.io/developer/408243456) | [youji okamura](https://appshunter.io/developer/834016142) |

## What reviewers say

### DayDistance

[App page](https://appshunter.io/ios/app/daydistance/id408243453)

Easily calculate the duration between two dates in days, months, or years. You can also determine a future or past date by adding or subtracting a specified number of days, months, or years.

**Highlights:** Calculate days between dates, Calculate months between dates, Calculate years between dates, Determine date from number of days, Determine date from number of months, Determine date from number of years

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### surveying height calculation

[App page](https://appshunter.io/ios/app/surveying-height-calculation/id954160537)

This app simplifies surveying calculations for construction and building sites. It allows users to input measurements and automatically calculates instrument height, altitude, and required cladding height, even without a field book.

**Highlights:** Automatic height calculation, Altitude measurement, Cladding height calculation, Input measurements easily, Registration function

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DayDistance free?

DayDistance is free to download, with in-app purchases available.

### Is surveying height calculation free?

surveying height calculation costs $1.99, with no in-app purchases.

### Do DayDistance or surveying height calculation have ads?

DayDistance shows ads; surveying height calculation does not.

### Which is updated more often, DayDistance or surveying height calculation?

DayDistance ships an update every 5 months, and surveying height calculation every 26 months. Most recently, DayDistance was updated on November 1, 2026 and surveying height calculation on November 1, 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.*