Comparison

VistaCCD vs AutoX Data Logger

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

Head to head
About

VistaCCD

This utility app assists engineers in the preliminary design of turbo compressor impellers. It calculates key dimensions and efficiency based on user-defined performance targets and inlet conditions, offering visual feedback for optimization.

Highlights
  • Preliminary turbo compressor impeller design
  • Key dimensions and efficiency calculation
  • Meanline design calculation
  • Reynolds number and tip clearance correction
  • Visual feedback for optimization
  • 2D impeller sketch
Features
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PCA Engineers brings preliminary design of turbo compressor impellers to your fingertips. VistaCCD gives users the key dimensions and achievable efficiency for any turbo compressor stage operating with perfect gas. Taking as constraints the target design point performance and gas inlet conditions, VistaCCD performs a meanline design calculation using well-validated empirical relationships for work factor and achievable efficiency, corrected for Reynolds number and tip clearance effects. The user can vary input parameters to optimise performance within specific dimensional constraints, guided by the visual feedback from the efficiency correlation and the 2D sketch of the impeller. This app will certainly be of interest to engineers involved in developing new compressor designs. Equally it will be relevant to those applying turbo compressors to turbochargers, industrial compressors and small gas turbines, giving users a better appreciation of the impact of design constraints.

About

AutoX Data Logger

Record and analyze autocross runs with video, GPS, and accelerometer data. Map courses, visualize performance with GPS traces and plots, and automatically start/stop recordings for hands-free logging. Export and import run data for comprehensive performance review.

Highlights
  • Course mapping with cone placement
  • Video, GPS, and accelerometer run recording
  • GPS traces and speed/g-force plots
  • Automatic start/stop recording
  • Data export and import
  • Optional sensor fusion for internal GPS
Currently charting
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Data logger for collecting and analyzing run data for autocross. Map the course, record your runs, then analyze your performance! The app is designed to be quick to use to quickly analyze data between runs and find time during the event. * Map the course, including the cones! * Record your runs with video (GoPro or internal camera), GPS, ODB2, and accelerometer data * Analyze your runs with GPS traces, video, speed vs distance plots, and g-force plots * Automatically start and stop recording for hands free data logging * Export your data (csv, json, and VBO) * Import runs from others * iCloud data sync The data collection is based on GPS/GNSS data and is compatible with various devices. Some of which connect directly to the app for the highest quality data collection. The solutions which provide the best quality (25hz or 10hz) data are: * RaceBox Mini * RaceBox Mini S * RaceBox Micro * Dragy Pro * Dragy Lite * XGPS160 * Opensource DIY GPS modules (build for under $50!) https://github.com/FlorianMuellerklein/OpensourceGPSDevice4AutoXDatalogger Alternatively, the app is compatible with any GPS device which pairs to the iOS settings.  Video recording * GoPro 5/6/7/8/9/10/11/12/13 * Internal iPhone Camera Vehicle Data * BLE ELM327 readers * Veepeak ODBCheck Plus is the most tested and recommended device * Custom sensors that broadcast byte packets on a BLE characteristics. Make whatever you want and broadcast it in a compatible way. Additionally, when using the internal iPhone GPS the app contains an optional sensor fusion algorithm to interpolate between the 1hz GPS updates that the internal sensor provides. Typically 1hz is too slow for motorsports applications but this may provide usable data with no additional hardware required.

Screenshots

VistaCCD4 screens
AutoX Data Logger4 screens

Verdict

The call

The clearest difference is price: VistaCCD at Free against AutoX Data Logger's $9.99. VistaCCD also leads on iOS requirement (8.0 vs 18.0). AutoX Data Logger's advantage is chart position (#196 vs unranked). On review sentiment, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

VistaCCD is free to download; AutoX Data Logger costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 7 level
VistaCCD versus AutoX Data Logger: the parameters behind the verdict, then further details
ParameterVistaCCDAutoX Data Logger
PriceFree — better$9.99
Rating—5.0 (8 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—8 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#196 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better18.0
Further details — not scored
Size7 MB13 MB
Age rating4+4+
DeveloperKal Designs LtdFlorian Muellerklein

Customer experience

VistaCCD

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

AutoX Data Logger

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

VistaCCD

No in-app purchases

None

AutoX Data Logger

No in-app purchases

Questions

Is VistaCCD free?
VistaCCD is free to download, with no in-app purchases.
Is AutoX Data Logger free?
AutoX Data Logger costs $9.99, with no in-app purchases.
Do VistaCCD or AutoX Data Logger have ads?
Neither VistaCCD nor AutoX Data Logger shows ads.
Which is updated more often, VistaCCD or AutoX Data Logger?
VistaCCD ships an update fortnightly, and AutoX Data Logger fortnightly. Most recently, VistaCCD was updated on September 29, 2026 and AutoX Data Logger on October 8, 2026.

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