G FORCE vs Circle Track Tuning
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
G FORCE
Transform your iPhone into a vehicle G-force meter to measure acceleration, braking, and cornering. Features real-time displays, adjustable alerts, and peak hold functionality for detailed analysis.
- Real-time G-force display
- Adjustable audio alerts
- Peak hold monitoring
- Quick calibration
- Session maximum records
- Customizable gauge scales
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G FORCE makes your iPhone or iPod Touch a handy vehicle G-Force meter. A nice looking enhancement to the dash of your car, too. Quantify the G-Force you experience in the vehicle (e.g. during acceleration, braking, drifting, cornering etc) or perform a quick dyno. Its unique "Sound Alert feature" provides alert sound when the g-value exceeded a user selected limit. FEATURES (1) "Quick & Simple Calibration" Simply press the start button and G FORCE takes only about 0.5 seconds to calibrate to your iPhone's tilt angle. (2) "Real Time Display" Two "Linear Gauges" and two "Digital Displays" show the real time lateral (e.g. cornering) and longitudinal (acceleration, braking) G values. (3) "Peak Hold" Adjustable "Peak Hold Duration" helps you monitor peak values. (4) "Graphical Peak Hold Indicators" Distinctive graphical peak hold indicator makes observing peak values a quick glance. (5) "Adjustable Audio Alert" Provides alert sound when the G-Forces exceeded a user preset "threshold". (6) "Adjustable Gauge Scale" "log Scale" and "Linear Scale" helps you utilize the "Linear Gauges" for different conditions. e.g. Use log Scale in "mild" acceleration conditions or use "Linear Scale" in "aggressive" acceleration conditions. (7) "Session Maximum Records" Shows all the maximum G values in the current session. (8) "Large Operation Buttons" Facilitates quick and easy operation. (9) "Theme Switch" Switch between the Classic and Graphite Theme to suit your taste. With its nice interface and unique features, you would like G FORCE even though you may have already got other g-meters like dynolicious or even a hardware equipment.
Circle Track Tuning
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Save your race day notes and see race day adjustments on the Circle Track Tuner! EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Circle Track Tuning at Free against G FORCE's $2.99. G FORCE's advantage is in-app purchases (none vs 2) and update cadence (monthly vs every 2 months). On ads 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
Circle Track Tuning is free to download; G FORCE costs $2.99 up front. Circle Track Tuning sells 2 in-app purchases, starting at $1.99 per month. G FORCE asks for nothing beyond the download.
G FORCE ships an update monthly, Circle Track Tuning every 2 months. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.
| Parameter | G FORCE | Circle Track Tuning |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 14.0.0 |
| Further details — not scored | ||
| Size | 3 MB | 40 MB |
| Age rating | 4+ | 17+ |
| Developer | Y Lau | Wehrs Machine and Racing Products |
In-app purchases
G FORCE
No in-app purchases
Circle Track Tuning
- Trackside Tuning Monthly$1.991 Month
- Wehrs Machine Connect Lifetime$99.99
