# SBT1 SchuLink vs DHC Sync

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.

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

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.

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.

## The numbers

| Metric | SBT1 SchuLink | DHC Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (3 ratings)](https://appshunter.io/ios/app/sbt1-schulink/id1098059054/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dhc-sync/id1130832650/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 33 MB | 67 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SCHUMACHER ELECTRIC CORPORATION](https://appshunter.io/developer/983625395) | [DHC Specialty Corp.](https://appshunter.io/developer/1130832649) |

## What reviewers say

### SBT1 SchuLink

[App page](https://appshunter.io/ios/app/sbt1-schulink/id1098059054)

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:** macOS Compatibility

**In-app purchases:** none


### DHC Sync

[App page](https://appshunter.io/ios/app/dhc-sync/id1130832650)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*