Comparison

ODO Check vs 3pRally

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

Head to head
About

ODO Check

Easily verify your vehicle's odometer accuracy by entering start and end readings. Get instant summaries with bargraphs and email comprehensive reports. Supports miles or kilometers and includes a speedometer.

Highlights
  • Odometer accuracy check
  • Instant summary with bargraphs
  • Email comprehensive reports
  • Mile or Kilometer settings
  • Speedometer included
  • Runs in background
  • Auto-shutdown to save power
Read full description

ODO Check - Check your vehicle's odometer accuracy with precision. An odometer accuracy check is easy to run: 1. Enter a start odometer reading to begin the test. 2. Enter an end odometer reading to stop it. 3. ODO Check will produce an instant result which can be emailed as a comprehensive report. Features ・Highly accurate. ・No highway marker signs required. ・See an instant summary with bargraphs. ・eMail a full report. ・Mile or Kilometer settings. ・Speedometer included. ・Runs in background. ・Auto-shutdown to save power. ・Very easy to use. DISCLAIMER: Continued use of GPS running in the background can dramatically decrease battery life. =========================== IN-APP PURCHASE: . The free download of ODO Check is fully functional. . Upgrade to remove ads. IN-APP PURCHASE DETAILS . Payment will be charged to your iTunes account at confirmation of purchase. TERMS AND CONDITIONS Your use of this application is governed by Interlocken Technology's Terms of Use (http://s354819480.onlinehome.us/InterlockenPrivacyPolicy/Interlocken%20Technology%20Privacy%20Policy.pdf) and Privacy Policy (http://s354819480.onlinehome.us/InterlockenPrivacyPolicy/InterlockenTechnologyTermsOfUse.pdf)

About

3pRally

This navigation tool assists in TSD Regularity Rally events by providing real-time speed adjustments, time tracking, and roadbook configuration. It offers multiple display modes and customizable voice announcements to help users navigate accurately.

Highlights
  • Multiple display modes (Classic, Advanced, Roadbook)
  • Configurable roadbook support
  • Real-time speed and time adjustments
  • Customizable voice and beep announcements
  • GPS calibration and accuracy selection
  • Track saving and export (GPX/KML)
  • Flic button integration
Read full description

3pRally: the most complete tool for TSD Regularity Rally. Note for New Customers: You can use all app functionalities for up to 45 minutes a day, after tapping "start", to test it out. To subscribe, please download 3pRally Pro. 3pRally requires a device with GPS to function. The GPS sensor can be either internal (iPhone and iPad with Cellular) or external (e.g., Garmin GLO 2, Dual XGPS150A, etc.). Main Features: - Three Modes: Classic (focus on one data point at a time), Advanced (all relevant data at a glance), and Roadbook (follow a roadbook configured within the app) - Roadbook Configuration - Tips: get speed adjustments and time vs. ideal time - GPS Calibration: Calibrate the app GPS against the calibration sector - Comprehensive Information: Stage Number, Speeds, Time, and Distance are always available - Voice Announcements: the app can announce Partial Distance, Current Speed, Average Speed and Tips with custom frequency (Settings) - Beep Alerts: Keep track of the distance driven if you prefer not to use voice announcements - Change the main information displayed by tapping the top of the screen (Classic Mode) - Quick Restart: reset all counters and restart with two taps (Classic and Advanced Mode) - Flic Integration: control the app via Flic and Flic 2, the smartest wireless buttons - Unlink the average speed from the partial counters (time and distance) - Show Current or Total Average speed in addition to partial average speed. - Reverse Button: reverse distances if you missed a turn - Pause Button: temporarily stop measurements (can be enabled/disabled in Settings). - Position the Reset Buttons on the left or right - GPS Reception Quality: test GPS reception quality (in Settings or by double-tapping the GPS Accuracy label) - GPS Accuracy Selection: discard measurements that are not accurate enough (Settings) - Manually or automatically save your tracks (enable Auto Save in Settings) - Export saved tracks in GPX or KML format (accessible from the saved tracks list in the Map View) - Works with miles and kilometers - Dark Mode Support - Reduce the risk of accidentally changing the view by enabling "two-finger swipe" and "double-tap buttons" (Settings) - Visualize speeds with 1, 2, or no decimals (Settings). - Visualize distances with 2 or 3 decimals (Settings). - Auto-Start: delay the start by +30 secs, +60 secs, or configure a specific starting time (Settings) - With Auto-start on, the app can count down (beep or voice) from 5 or 10 secs before the starting time (Settings) - Show/hide the current position coordinates - Sync the app's time with the Rally's "Official Time" (double-tap the time on the Main View) - Display Time and Timers using the format/precision you prefer: seconds, tenths (12:59:59.9), hundredths (12:59:99), or thousandths (12:59:999) (Settings) - Option to hide the average speeds (Settings) - Enable audio confirmation for buttons (Settings) - Works with most external GPS devices; tested with Garmin GLO 2 and Dual XGPS150A - Distance Adjustment: Manually adjust distances by double-tapping the labels (when distances are the main information displayed). You can adjust distances by entering a new one, calibrate your GPS with official measures (applying a % calibration), or enter the new distance and let the app calculate it for you! Support: You experienced an issue or want to suggest how to improve 3pRally? Tell us via support (at) 3pmaster.com or directly within the app (from the "Settings"). Note: Mobile Data connection is only required to access the maps. Continued use of GPS running in the background can dramatically decrease battery life. Disclaimer: Please consider that 3pRally relies on the device GPS to measure the distances you travel. Accuracy may vary depending on the GPS satellite reception quality. Thanks to icons8.com for several icons (http://icons8.com). Thanks to Alice & Flavia for their patience and to Quinten for his fantastic support!

Screenshots

ODO Check4 screens
3pRally4 screens

Verdict

The call

The clearest difference is in-app purchases: 3pRally at none against ODO Check's 1. ODO Check's advantage is iOS requirement (14.0 vs 16.1). On price, review sentiment, update cadence and ads there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. ODO Check sells 1 one-off in-app purchase. 3pRally asks for nothing beyond the download.

UpkeepUpdate frequency

ODO Check ships an update every 7 months, 3pRally every 6 months. The most recent releases landed on August 26, 2026 and September 14, 2026 respectively.

Scorecard3 real differences Β· 5 level
ODO Check versus 3pRally: the parameters behind the verdict, then further details
ParameterODO Check3pRally
PriceFreeFree
Positive reviews0.0% of reviews0.0% of reviews
Update frequencyEvery 7 monthsEvery 6 months β€” better
AdsNoNo
In-app purchasesYesNo β€” better
MonetizationFree with in-app purchasesFree β€” better
DevicesiPhone, iPod β€” betteriPhone
Requires iOS14.0 β€” better16.1
Further details β€” not scored
Size5 MB12 MB
Age rating+44+
DeveloperRichard SilvermanStooj srl

Customer experience

ODO Check

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

3pRally

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

ODO Check

One-time1
  • One Time Purchase. Remove Ads$0.99
None

3pRally

No in-app purchases

Questions

Is ODO Check free?
ODO Check is free to download, with in-app purchases available.
Is 3pRally free?
3pRally is free to download, with no in-app purchases.
Do ODO Check or 3pRally have ads?
Neither ODO Check nor 3pRally shows ads.
Which is updated more often, ODO Check or 3pRally?
ODO Check ships an update every 7 months, and 3pRally every 6 months. Most recently, ODO Check was updated on August 26, 2026 and 3pRally on September 14, 2026.

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