Comparison

Flex vs G Performance

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Flex

Read full description

Looking for a powerful and reliable speedometer app for your iPhone? Look no further than Flex-Module! Our app is based on your car's movement statistics, providing you with accurate and up-to-date information on your driving habits and vehicle performance. With features like oil metrics, speedometer, and local storage for all trip information, Flex-Module is the ultimate tool for any driver looking to optimize their driving experience. Whether you're a seasoned pro or just starting out, Flex-Module has everything you need to stay on top of your car's performance and take control of your driving experience. Download Flex-Module today and experience the future of car monitoring technology!

About

G Performance

Features
Read full description

G Performance is a live car cockpit and route telemetry app designed for drivers, riders, off-road users, and anyone who wants a clean instrument-style dashboard on their device. Track GPS speed, heading, distance, altitude, G-force behavior, and route data in a premium dark cockpit interface. G Performance 2.0 introduces Route Space โ€” a custom route visualization system for recording, saving, loading, importing, and inspecting routes. Features: - Live GPS speedometer - AVG, MAX, and distance tracking - G-force visualization - Route recording - Saved routes - GPX import - Route Space map - Road and Terrain map layers - 2D and 3D route views - Altitude-aware route information - POI labels with optional photos and videos - Compass and heading information - GPS coordinates and altitude - Portrait, landscape, and tablet layouts - Live Activity support where available G Performance is built for users who enjoy live driving telemetry, car dashboard visuals, route tracking, and clean instrument-style interfaces. Always use the app responsibly and follow local laws and safety rules.

Screenshots

Flex4 screens
G Performance4 screens

Verdict

The call

The clearest difference is update cadence: G Performance at fortnightly against Flex's every 2 months. G Performance also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Flex ships an update every 2 months, G Performance fortnightly. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

Scorecard2 real differences ยท 4 level
Flex versus G Performance: the parameters behind the verdict, then further details
ParameterFlexG Performance
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS16.015.6 โ€” better
Further details โ€” not scored
Size3 MB28 MB
Age rating4+4+
DeveloperFlex-Module LLCKristian Dimitrov

In-app purchases

None

Flex

No in-app purchases

None

G Performance

No in-app purchases

Questions

Is Flex free?
Flex is free to download, with no in-app purchases.
Is G Performance free?
G Performance is free to download, with no in-app purchases.
Do Flex or G Performance have ads?
Neither Flex nor G Performance shows ads.
Which is updated more often, Flex or G Performance?
Flex ships an update every 2 months, and G Performance fortnightly. Most recently, Flex was updated on October 9, 2026 and G Performance on October 11, 2026.

Other comparisons