WGS84 vs B4i
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WGS84
This app measures coordinates in WGS84 format, offering both decimal degrees and degrees-minutes-seconds. It allows users to export data as CSV and attach photos, videos, or voice notes to measurements.
- WGS84 coordinate measurement
- Decimal degrees format
- Degrees-minutes-seconds format
- CSV data export
- Attach photos, videos, voice records
- Download media via iTunes
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This application is primary used to measure coordinates of WGS84. It provided two different format of coordinates - decimal degrees and degrees-minutes-seconds. All measure data could be exported as a csv file for post process. In addition, users could also add photos, videos and voice records to the measure data, and the photos, videos and voice records could be downloaded through iTunes.
B4i
This navigation tool converts between UTM and Lat/Lon coordinate systems, supporting various datums and formats. It displays current navigational information and allows sharing locations via SMS or email. Features include text-to-speech for coordinates and an animated compass.
- UTM to Lat/Lon conversion
- Support for different datums
- Current navigational information display
- Location sharing via SMS/Email
- Text-to-speech for coordinates
- Animated compass
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A navigational calculator that allows converting between UTM and Lat / Lon coordinates systems and between different datums and formats. The second page shows the current navigational information and allows you to send the location by SMS or Email. New Speak button. Speaks the current coordinate (text to speech). New animated compass.
Screenshots
Verdict
The clearest difference is review sentiment: B4i at 100% against WGS84's 0%. B4i also leads on price (Free vs $1.99). WGS84's advantage is iOS requirement (13.0 vs 15.0). On update cadence, ads, in-app purchases and device support 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
B4i is free to download; WGS84 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WGS84 ships an update every 2 months, B4i every 3 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | WGS84 | B4i |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 3.5 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | HUNG HSUN LIN | Erel Uziel |
Customer experience
WGS84
B4i
In-app purchases
WGS84
No in-app purchases
B4i
No in-app purchases
