GeoShift vs Wire Size Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GeoShift
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263 coordinate systems. NTv2 grid accuracy. GNSS survey, stakeout and AR — all fully offline. GeoShift is a professional geodesy toolkit built for surveyors, civil engineers and field crews. From coordinate conversion to field stakeout, cut & fill volumes and cadastral lookup — everything you need in one OFFLINE app. ► COORDINATE CONVERTER - 263 EPSG systems: WGS84, ED50, ITRF, UTM, ETRS89, national grids and more - On-device, no-internet conversion powered by a proj4 engine - 13 embedded NTv2 grids for the highest datum accuracy - Helmert 7-/3-parameter and epoch (plate-motion) propagation - Ellipsoidal ↔ orthometric height with geoid model - Batch convert: import CSV/TXT/NCN/XYZ and transform at once ► GNSS SURVEY (PRO) - Multi-epoch averaging, inverse-variance weighting, MAD outlier rejection and Kalman filtering - Real quality metrics: horizontal STD, 2DRMS (~95%), CEP50 and convergence - Mock-location rejection, satellite C/N0 and DOP panel ► STAKEOUT + AR (PRO) - Stake out points with compass and live map guidance - Augmented Reality: on-camera target arrow and distance - True north via WMM2025 magnetic declination ► MAPS, TOPOGRAPHY & EARTHWORK - Distance/area measurement, polygon-line drawing, shape move/rotate - Elevation profile and cut/fill volume analysis from DEM - Standard, satellite and terrain layers + offline map downloads ► GEODETIC TOOLS - COGO (inverse, forward, intersection, area) - Grid ↔ Ground scale factor - Site calibration (Helmert, residuals and RMS) ► GEO-TAGGED CAMERA & TRACK - GPS + UTM watermark burned into photos and video - Live track recording with distance and speed ► EXPORT & CLOUD - PDF, DXF, KML/KMZ, CSV, NCN, GPX - Firestore cloud sync across devices, 6 languages The core of GeoShift is free. PRO unlocks unlimited saves, GNSS survey, stakeout, batch conversion, tracking and HD satellite maps. Try PRO FREE for 3 DAY — download today and put the field in your pocket. — Subscription Info — Subscriptions are charged to your App Store account and renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Any unused portion of a free trial is forfeited when a subscription is purchased. Terms of Use: https://tclabs.app/geoshift/terms.html Privacy Policy: https://tclabs.app/geoshift/privacy.html
Wire Size Calc
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NEC wire size calculator for electricians, apprentices, and electrical engineers. Determine the correct wire gauge (AWG/kcmil) for any circuit using official NEC 2023 ampacity tables and derating factors. Supports continuous and non-continuous loads, copper and aluminum conductors, 6 insulation types, and both conduit and free air installations. No internet required - works 100% offline on the job site. FEATURES: - Continuous and non-continuous load sizing (125% factor) - 5 voltage presets: 120V, 208V, 240V, 277V, 480V - Single-phase and three-phase support - Copper and aluminum conductors: 14 AWG through 2000 kcmil - AWG and mm² (metric) display toggle - 6 insulation types: THHN, THW, TW, XHHW-2, NM-B, USE-2 - Conduit and free air installation methods - Temperature correction factor (NEC 310.15(B)(1)) - Conduit fill adjustment factor (NEC 310.15(C)(1)) - Termination rating check (60°C / 75°C per NEC 110.14(C)) - Overcurrent protection sizing (NEC 240.4(D)) - Optional voltage drop check when distance is provided - PASS/FAIL indicator for quick compliance check NEC REFERENCES: - Table 310.16 - Ampacity in conduit/raceway - Table 310.17 - Ampacity in free air - Table 310.15(B)(1) - Temperature correction factors - Table 310.15(C)(1) - Conduit fill adjustment factors - NEC 110.14(C) - Termination temperature limits - NEC 240.4(D) - Small conductor overcurrent protection PRO FEATURES (one-time purchase): - No ads - Save calculation history - Export calculations as PDF reports - Dark theme support BUILT FOR THE JOB SITE: This app is designed by electricians, for electricians. Enter your circuit parameters, get the recommended wire size instantly - no complicated menus or unnecessary features. One-hand operation, instant results. HOW IT WORKS: 1. Enter load current in amps 2. Select load type (continuous or non-continuous) 3. Choose voltage, phase, conductor material, insulation type 4. Set installation method and ambient temperature 5. Get recommended wire size with full derating breakdown The calculator automatically applies: - 125% continuous load factor - Temperature correction for ambient conditions - Conduit fill adjustment for conductor count - Termination temperature limit verification - Standard breaker size selection PERFECT FOR: - Licensed electricians - Electrical apprentices - Electrical engineers and designers - Electrical contractors - NEC code exam preparation - Journeyman and master electrician exams OFFLINE & PRIVACY: - Works 100% offline - no internet needed - No account required - No data collection - Your calculations stay on your device Simplify your wire sizing on the job site.
Screenshots
Verdict
The clearest difference is price: GeoShift at Free against Wire Size Calc's $0.99. Wire Size Calc's advantage is update cadence (every 2 days vs every 2 weeks) and chart position (#185 vs unranked). On ads, in-app purchases, device support and iOS requirement 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
GeoShift is free to download; Wire Size Calc costs $0.99 up front. GeoShift sells 3 in-app purchases, starting at $2.49 per month and Wire Size Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
GeoShift ships an update every 2 weeks, Wire Size Calc every 2 days. The most recent releases landed on September 9, 2026 and September 7, 2026 respectively.
| Parameter | GeoShift | Wire Size Calc |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Best chart rank | — | #185 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 195 MB | 34 MB |
| Age rating | 4+ | 17+ |
| Developer | AYSE CIFTCI | Rizvan Adzhoian |
In-app purchases
GeoShift
- GeoShift Pro Monthly$2.491 Month
- GeoShift Pro Yearly$24.901 Year
- GeoShift Pro Lifetime$97.90
Wire Size Calc
- Pro Unlock$2.99





