Comparison

SBT1 SchuLink vs DHC Sync

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

Head to head
About

SBT1 SchuLink

This app wirelessly connects a Bluetooth battery tester to your smartphone or tablet. It allows you to perform various battery and system tests, view battery status, and store up to 2,000 test records. Test results can be easily emailed or texted.

Highlights
  • Perform Battery/System Test
  • EV Battery Test
  • Email/text test records
  • Bluetooth pairing
  • Store 2,000+ test records
  • Interactive Home Menu
Features
Read full description

Schumacher Electric's innovative Schulink App easily syncs your SBT1 Bluetooth Battery Tester to your smartphone or tablet. The wireless 6V/12V Battery Tester performs Battery Test, Start-Stop Battery Test, and EV Battery Test. It will also perform 12V/24V System Test. Simply download and install the SBT1 Schulink App from Apple Store to your mobile devices and experience the most advanced testing technology. The App features are: • Perform Battery/System Test, EV Battery Test and System Test • Capable of email/text test records • Clamps properly connected or reversed • Interactive Home Menu • Easy & Fast Bluetooth Pairing • Battery State • Each stage of the charging process • Capable of store 2,000 plus test records

About

DHC Sync

This app connects your Bluetooth battery tester to your smartphone or tablet for advanced battery and system testing. It allows you to perform various battery tests, manage test records, and share detailed reports wirelessly. Experience advanced testing technology with easy Bluetooth pairing and data management.

Highlights
  • Perform Battery/System Test, EV Battery Test
  • Email/text test records
  • Bluetooth pairing
  • Detailed test reports
  • Test data management
  • Store 2,000+ test records
Features
Read full description

DHC Specialty Corp. innovative BTW300 App easily syncs your BTW300 Bluetooth Battery Tester to your smartphone or tablet. The wireless 6V/12V Battery Tester performs Battery Test, Start-Stop Battery Test, and EV Battery Test. It will also perform 12V/24V System Test. Simply download and install the DHC BTW300 App from Apple Store to your mobile devices and experience the most advanced testing technology. The App features are: • Perform Battery/System Test, EV Battery Test and System Test • Capable of email/text test records • Clamps properly connected or reversed • Interactive Home Menu • Easy & Fast Bluetooth Pairing • Detailed Test Report • Test data management and test history tracing • Capable of store 2,000 plus test records

Screenshots

SBT1 SchuLink4 screens
DHC Sync4 screens

Verdict

The call

The clearest difference is rating: DHC Sync at 5.0 against SBT1 SchuLink's 1.7. DHC Sync also leads on update cadence (every 3 months vs every 12 months) and iOS requirement (9.0 vs 12.0). SBT1 SchuLink's advantage is ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model 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

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

ReceptionRating · Positive reviews · Number of ratings

DHC Sync holds the better App Store score, 5.0 against 1.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

SBT1 SchuLink ships an update every 12 months, DHC Sync every 3 months. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
SBT1 SchuLink versus DHC Sync: the parameters behind the verdict, then further details
ParameterSBT1 SchuLinkDHC Sync
PriceFreeFree
Rating1.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 12 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.09.0 — better
Further details — not scored
Size33 MB67 MB
Age rating4+4+
DeveloperSCHUMACHER ELECTRIC CORPORATIONDHC Specialty Corp.

Customer experience

SBT1 SchuLink

All ratings3 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

DHC Sync

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SBT1 SchuLink

No in-app purchases

None

DHC Sync

No in-app purchases

Questions

Is SBT1 SchuLink free?
SBT1 SchuLink is free to download, with no in-app purchases.
Is DHC Sync free?
DHC Sync is free to download, with no in-app purchases.
Which has better reviews, SBT1 SchuLink or DHC Sync?
DHC Sync is rated higher. SBT1 SchuLink averages 1.7 out of 5 from 3 ratings, while DHC Sync averages 5.0 from 1 ratings.
Do SBT1 SchuLink or DHC Sync have ads?
Neither SBT1 SchuLink nor DHC Sync shows ads.
Which is updated more often, SBT1 SchuLink or DHC Sync?
SBT1 SchuLink ships an update every 12 months, and DHC Sync every 3 months. Most recently, SBT1 SchuLink was updated on October 15, 2026 and DHC Sync on October 3, 2026.

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