# Surveying and calculation app — Simple calculation app

> Simple calculation app (iPhone/iPad app by youji okamura.)

- Source: https://appshunter.io/ios/app/surveying-and-calculation-app/id1515292029 (this page in markdown: same URL + `.md`)
- Developer: [youji okamura](https://appshunter.io/developer/834016142)
- Category: Productivity, Business
- Price: $1.99
- Age rating: 4+
- Requires: iOS 12.0 · 7 MB
- Languages: American English
- Released: 2020-06-02
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/surveying-and-calculation-app/id1515292029/reviews.md

## What is Surveying and calculation app?

It is an application to calculate the height of the tension on site. This is a useful app if you are at a construction site.

1. Find the excavation position (distance) from the planned cross-section.

2. Drop the position obtained above on the plan view and find the coordinates. (* Not required)

3. Observe the excavation position on site.

4. Place wooden piles before and after the observed position and measure the height of the wooden piles.

5. Drive nails from the wooden pile to the planned height.

6. Hit the tree horizontally.

7. From the excavation position at the planned height of the porch, hit the tree with the slope of the plan.


Input condition is

■ 1.ho ・ ・ ・ known altitude
■ 2.h ・ ・ ・ Instrumental height (* This is the reading of the backsight when observing at the level)
1. + 2 is the instrument height (elevation) at the instrument position.

■ 3.h2: Mirror height (* 0 is input for level observation)
■ 4.H1 ・ ・ ・ Planned price
■ 5.i ... Slope
■ 6.H ... Reading value (* Measured value)


"A handy app if you have one! Recommended apps useful for daily life and construction sites ”
https://magical-1.net/app


## Version history (last 1 release)

### 1.0 — 2020-06-02

No release notes.

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## More apps by youji okamura

- [Calculate area on three sides](https://appshunter.io/ios/app/calculate-area-on-three-sides/id834019680)
- [surveying height calculation](https://appshunter.io/ios/app/surveying-height-calculation/id954160537)
- [Easy to use calculator](https://appshunter.io/ios/app/easy-to-use-calculator/id965241193)
- [測量 座標計算](https://appshunter.io/ios/app/id989856065)
- [EnglishRock！](https://appshunter.io/ios/app/englishrock/id1433908275)
- [SurveyCalculation](https://appshunter.io/ios/app/surveycalculation/id1445264027)

All apps by youji okamura: https://appshunter.io/developer/834016142

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*