Comparison

SeeLeveL Sync vs Blue Def Decoder

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

Head to head
About

SeeLeveL Sync

Monitor your RV's fresh water, grey water, black water, and LPG tank levels in real-time. Customize tank names, colors, and set alarms for low or high levels. Connects via Bluetooth to compatible SeeLeveL II tank monitors.

Highlights
  • Real-time tank level monitoring
  • Customizable tank names and colors
  • Low and high level tank alarms
  • Bluetooth connectivity
  • Graphical and percentage display
  • Home Screen widget support
Features
Read full description

Upgrade your RV experience with SeeLeveL RV 2.0, the ultimate companion for seamless tank monitoring and notifications. Designed for use with the SeeLeveL II 709-BTP3 or 709-BTP7 tank monitor, this app provides an unrivaled level of control and convenience, ensuring you stay informed about your RV's vital resources. Monitor your RV's tank levels, including fresh water, grey water, black water, and LPG, in real-time with SeeLeveL RV 2.0. The app delivers accurate and precise tank-level data, presented in both graphical and percent value formats. Stay informed at a glance with intuitive displays that let you easily track fluid levels and ensure you have sufficient resources for your journeys. SeeLeveL RV 2.0 offers advanced customization options, allowing you to personalize your tank monitoring experience. Easily rename tanks and devices within the app, making it effortless to identify and manage different tanks in your RV. Customize the graphical representation of tank fluid colors to match the type of liquid stored, further enhancing clarity and visual identification. One of the standout features of SeeLeveL RV 2.0 is the comprehensive alarm system. Set up customizable alarms for low and high tank levels, receiving timely notifications when attention is required. Say goodbye to unexpected water shortages or messy overflows. Stay proactive and maintain optimal tank levels for a worry-free RV experience. The app's intuitive interface and Auto-Connect feature ensure easy access to vital information directly from the Home Screen. Effortlessly navigate through the app, access tank data, and make adjustments with ease. Connect seamlessly with the SeeLeveL II 709-BTP3 or 709-BTP7 tank monitor via Bluetooth, establishing a reliable and efficient connection for accurate data synchronization. Download the app today and unlock a new level of tank monitoring and control for your RV adventures. Please note that SeeLeveL RV requires compatibility with the SeeLeveL II 709-BTP3 or 709-BTP7 tank monitor for optimal functionality. For more information contact us as 1-800-617-7384

About

Blue Def Decoder

Instantly determine the freshness of your Diesel Exhaust Fluid (DEF) by entering the code from your container. This app helps you confirm DEF hasn't expired, track shelf life, and verify vehicle compliance, removing guesswork for diesel vehicle owners.

Highlights
  • Check DEF freshness
  • Enter 5-11 character codes
  • View manufacturing date
  • See freshness status
  • Track shelf life
  • Verify vehicle compliance
Features
Currently charting
Read full description

Easily check the freshness of your Diesel Exhaust Fluid (DEF) with Blue Def Decoder. Enter the 5–11 character code printed on your DEF container — whether it’s the short date section or the full code — and instantly see the manufacturing date and freshness status. Use Blue Def Decoder to: Confirm your DEF hasn’t expired Track shelf life for storage Verify compliance for your vehicle Blue Def Decoder saves you time and removes the guesswork from DEF code verification. Perfect for Sprinter van owners, diesel truck drivers, and anyone who needs quick, accurate results.

Screenshots

SeeLeveL Sync4 screens
Blue Def Decoder4 screens

Verdict

The call

The clearest difference is review sentiment: Blue Def Decoder at 60% against SeeLeveL Sync's 0%. Blue Def Decoder also leads on rating (3.0 vs 2.4) and chart position (#173 vs unranked). SeeLeveL Sync's advantage is price (Free vs $3.99) and update cadence (every 2 months vs every 5 months). On ratings volume, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

SeeLeveL Sync is free to download; Blue Def Decoder costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Blue Def Decoder holds the better App Store score, 3.0 against 2.4. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews point the same way: 0% of SeeLeveL Sync's written reviews are positive against 60% of Blue Def Decoder's.

UpkeepUpdate frequency

SeeLeveL Sync ships an update every 2 months, Blue Def Decoder every 5 months. The most recent releases landed on October 9, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 4 level
SeeLeveL Sync versus Blue Def Decoder: the parameters behind the verdict, then further details
ParameterSeeLeveL SyncBlue Def Decoder
PriceFree — better$3.99
Rating2.4 (5 ratings)3.0 (6 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings56 — better
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#173 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.4 — better15.1
Further details — not scored
Size25 MB20 MB
Age rating4+4+
DeveloperGarnet Instruments Ltd.Mako Technology Labs

Customer experience

SeeLeveL Sync

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews4 reviews
Positive0.0%
Neutral25.0%
Negative75.0%

Blue Def Decoder

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

SeeLeveL Sync

No in-app purchases

None

Blue Def Decoder

No in-app purchases

Questions

Is SeeLeveL Sync free?
SeeLeveL Sync is free to download, with no in-app purchases.
Is Blue Def Decoder free?
Blue Def Decoder costs $3.99, with no in-app purchases.
Which has better reviews, SeeLeveL Sync or Blue Def Decoder?
Blue Def Decoder is rated higher. SeeLeveL Sync averages 2.4 out of 5 from 5 ratings, while Blue Def Decoder averages 3.0 from 6 ratings.
Do SeeLeveL Sync or Blue Def Decoder have ads?
Neither SeeLeveL Sync nor Blue Def Decoder shows ads.
Which is updated more often, SeeLeveL Sync or Blue Def Decoder?
SeeLeveL Sync ships an update every 2 months, and Blue Def Decoder every 5 months. Most recently, SeeLeveL Sync was updated on October 9, 2026 and Blue Def Decoder on September 23, 2026.

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