G vs Quick Unit Convert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
G
This app records and analyzes motion data from your device's sensors, including acceleration, rotation, and GPS information. It's designed for experiments, performance analysis, and tracking various movements. Data can be exported in CSV format and is resistant to loss.
- Logs and plots motion data (acceleration, rotation)
- Records ground speed, altitude, distance, and displacement
- Virtually unlimited recording time
- Programmable data acquisition control
- Remote control via Apple Watch
- Configurable acceleration reference frame
- Export data in CSV format
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G-Field Recorder is an easy-to-use and powerful data acquisition and analysis system for iOS device deployments. G-Field Recorder logs, plots, and replays: - 3-axis acceleration fields - 3-axis rotational displacements - Ground speed - Altitude - Distance - Displacement - Course Use this app to assist your analysis of experiments, sports performance, drone behaviors, land vehicle and watercraft actions, security applications, structural behaviors, and more. All of your data is logged on your device, where you may retain it indefinitely, share, or delete the files of your choosing. All data files are easy to export in CSV format via AirDrop and other methods (e.g. Slack, email, LinkedIn ...) available on your device. Developed for NASA payloads, G-Field Recorder is resistant to data loss from impacts, continuously saving your data to permanent storage in case of a severe upset event that damages your device (e.g. you crash your drone). Features: - Logs and plots of motion data: -- 3 Axis Acceleration Field -- 3 Axis Rotations (Pitch, Roll, and Yaw) - Virtually unlimited recording time. The collected data is automatically stored in as many sequentially indexed files as required, up to about 5 MB per file (for easy search and review). Data storage capability is up to the max storage availability on the device. - Programmable data acquisition control: - Relative start time - Absolute start time - Relative stop time - Acceleration reference frame is configurable: -Choose to ignore or sense gravity - Select reference frames: Proper, Fictitious, or Coordinate acceleration - Remote control and monitoring via Apple Watch: - Apple Watch can start and stop data collection, overriding any device-programmed start and stop times - Apple Watch can set the acceleration reference frame - Set sampling frequency from vanishingly small (e.g. 0.001 Hz) up to 100 Hz - Computed averages and extrema of are automatically logged for all recorded motion data - Rewind and instant playback of recorded data - Text notes and an image can be added to each stored data file - Selectable animated icon graphics GPS Package In-App Purchase (recommended ) -- Ground Speed, Course, Altitude -- Distance & Displacement -- Illustrated path overlayed on Apple Map
Quick Unit Convert
This utility app offers a streamlined way to convert units with an intuitive, single-screen interface. It's designed to be lightweight and visually appealing, supporting dark mode for comfortable use across various devices.
- Intuitive user interface
- Single screen design
- Supports all screen sizes
- Lightweight
- Dark mode
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The unit converter app that you wish came pre installed on your device.. - Intuitive and efficient user interface. - Clean and beautiful single screen user interface. - Designed with all screen sizes in mind. - Lightweight in size. - Dark mode.
Screenshots
Verdict
The clearest difference is review sentiment: Quick Unit Convert at 100% against G's 50%. Quick Unit Convert also leads on rating (5.0 vs 3.9) and in-app purchases (none vs 2). G's advantage is update cadence (every 4 days vs every 19 months) and ratings volume (7 vs 1). On price, ads 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
Both are free to download. G sells 2 one-off in-app purchases. Quick Unit Convert asks for nothing beyond the download.
Quick Unit Convert holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: G has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of G's written reviews are positive against 100% of Quick Unit Convert's.
G ships an update every 4 days, Quick Unit Convert every 19 months. The most recent releases landed on July 4, 2026 and June 1, 2026 respectively.
| Parameter | G | Quick Unit Convert |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 4 days — better | Every 19 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 14.7 — better | 15.6 |
| Further details — not scored | ||
| Size | 35 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Stratos Perception, LLC | Divya Kothari |
Customer experience
G
Quick Unit Convert
In-app purchases
G
- Multi-Plot$0.99
- Professional$3.99
Quick Unit Convert
No in-app purchases








