UC0nvert vs survAIor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UC0nvert
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This is a flexible and convenient utility app that allows you to quickly convert units, currencies, and calculate your BMI. Choose among many unit types and lotsa currencies. Features: • Units Units Units! Tonnes of units. • Pick and save favorite units for each type to keep your selection lists to a manageable length. • 170 currencies to pick from. Rates are updated daily. • BMI calculator helps you track how healthy your weight is. • Scientific notation features allow you to manage ginormous numbers. • Units are color-coded to indicate what type they are (Metric, Imperial, Mixed, Other, and Obscure). Choose among the following unit types: • Length • Temperature • Time • Area • Volume • Dry Measure • Mass • Force • Density • Pressure • Energy • Power • Speed • Flow Rate • Angle • Fuel Efficiency • EV Efficiency • Torque
survAIor
This app provides essential surveying calculations for engineers and field technicians. It offers tools for traverse adjustments, area and curve calculations, volume computation, and GPS point capture. All data is stored locally and can be exported for use in other software.
- Traverse adjustments with Bowditch correction
- Polygon area and perimeter calculation
- Horizontal curve element solver
- Earthwork volume computation
- GPS point capture with real-time UTM conversion
- Project organization and management
- One-tap CSV export
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survAIor is a professional surveying calculator designed for engineers, surveyors, and field technicians who need accurate results on-site without carrying a dedicated calculator. SURVEYING CALCULATORS Traverse — Enter a start coordinate and a series of bearing and distance legs. survAIor applies the Bowditch correction and returns adjusted easting/northing coordinates for every station, along with linear misclosure and precision ratio. Area — Calculate the area and perimeter of any polygon by entering coordinate points. Results are returned in both square metres and hectares using the shoelace formula. Curve — Solve horizontal curve elements from any of four input combinations: Δ+R, Δ+T, Δ+L, or R+T. Returns radius, tangent length, arc length, external distance, middle ordinate, long chord, and optional BC/EC chainages. Volume — Compute earthwork cut and fill volumes from cross-sectional areas using the average-end-area method. Returns total cut, total fill, net volume, and a per-interval breakdown. GPS CAPTURE Use your iPhone's GPS to capture survey points in the field. Live coordinates are converted to UTM eastings and northings in real time and displayed on an interactive map. Named points are saved to your device and can be exported as a CSV with full easting, northing, elevation, latitude, longitude, and timestamp columns. PROJECT MANAGEMENT Organise your work into projects. Each project stores its calculations and field notes together, making it easy to manage multiple jobs at once. Return to any saved calculation to view, edit, and re-export results at any time. FIELD NOTES Add titled, free-text field notes to any project — record observations, site conditions, or instructions alongside your calculations. EXPORT Every calculator and the GPS capture tool supports one-tap CSV export via the iOS share sheet, ready for import into Excel, CAD, or GIS software. PRIVACY All data is stored locally on your device. survAIor does not collect analytics, display advertising, or transmit any data over the internet.
Screenshots
Verdict
The clearest difference is device support: UC0nvert at 3 against survAIor's —. UC0nvert also leads on iOS requirement (15.6 vs 17.0). On price 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | UC0nvert | survAIor |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | — |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 37 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Claude Banta | Alex Stanage |
In-app purchases
UC0nvert
No in-app purchases
survAIor
No in-app purchases









