Comparison

Synology Drive vs CTEK App

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

Head to head
About

Synology Drive

Access and manage files stored on your Synology NAS from your mobile device. This app allows you to view various file types, including office documents, and offers convenient file management features like syncing, searching, and sharing on the go.

Highlights
  • Access Synology NAS files on the go
  • View documents, spreadsheets, and slides
  • Sync files
  • Search files
  • Share files
  • Move and label files
Features
Read full description

**To use this app and enjoy its features, you must own Synology NAS and install the latest Synology Drive Server.** Synology Drive iOS mobile app allows you to easily access and manage files in your Synology Drive on the go. In addition to common file types, such as documents, images, videos, and music, the app's user-friendly in-app viewer can open Synology Office documents, spreadsheets, and slides. Convenient management features, such as syncing, searching, sharing, moving, and applying labels to files, are all available in the app, allowing users to complete tasks efficiently anytime, anywhere.

About

CTEK App

This app connects to compatible CTEK charging products via Bluetooth and Wi-Fi, offering remote control and enhanced features. Monitor charging status, schedule EV charging, and access special modes for battery reconditioning or power supply.

Highlights
  • Remote charging control
  • Charging scheduling
  • Battery reconditioning modes
  • 12V power supply mode
  • Charging history tracking
  • Product status monitoring
Features
Read full description

CTEK APP The CTEK APP keeps you on top of all your compatible CTEK charging products, right there in the palm of your hand. Quickly installed and simple to use, the CTEK APP syncs your CTEK products to your smartphone via BLUETOOTH® and Wi-Fi, or by using BLUETOOTH® only.* From the clear, easy to read home page you can check the status of all CTEK products that are within range and unlock extra product features to give you even more control. It’s designed to work effortlessly with all compatible CTEK products, including the NJORD® GO portable EV charger** and the CTEK CS ONE smart charger. Get the most out of your NJORD® GO EV charger The CTEK APP gives you total control over how and when you charge your EV with your NJORD® GO. Simply connect it to the app over BLUETOOTH® or Wi-Fi and you can: • Access additional NJORD® GO features and functions • Start, stop and pause charging remotely, and enable or disable auto start • Schedule charging for any time of day • Increase or lower the output current during heavy domestic power usage • Record and display your entire charging history Open up additional features on your CS ONE smart charger • Connects automatically over BLUETOOTH® • Revive deeply discharged batteries using the ‘RECOND’ reconditioning mode • Select ‘LITHIUM WAKE UP’ for lithium-ion batteries with Under Voltage Protection (UVP) • Turn your CS ONE into a 12V power supply using ‘SUPPLY’ mode to support the battery during service work • Displays charger voltage and amperage All you need in a single app The CTEK APP also gives you access to a range of additional functions, including: • Quick connection to the CTEK customer support team • Comprehensive product FAQs and troubleshooting • Easy access to terms and conditions The CTEK APP is compatible with most CTEK connected products. If you need any more information on compatibility, check the app and product user manuals or get in touch with our customer support team. What’s New • Support for CTEK CS ONE chargers • Full charging history page (NJORD GO only) • Date filtering in history page (NJORD GO only) • General bug fixes * BLUETOOTH® and Wi-Fi compatibility is subject to product type. Some connected product functions might not be available. ** We call the NJORD® GO an ‘EV charger’ but technically speaking, it’s ‘Electrical Vehicle Supply Equipment’ (EVSE) that provides a safe supply of electricity to power the on-board battery charger in your EV. Most people use the term ‘EV charger’ so to keep things simple, we’re going to use this term as well.

Screenshots

Synology Drive4 screens
CTEK App4 screens

Verdict

The call

The clearest difference is rating: Synology Drive at 4.5 against CTEK App's 2.7. Synology Drive also leads on ratings volume (4.4K vs 3) and review sentiment (33% vs 12%). CTEK App's advantage is update cadence (monthly vs every 3 months) and iOS requirement (16.6 vs 18.0). 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

Synology Drive holds the better App Store score, 4.5 against 2.7. That said, the two scores are not equally well evidenced: Synology Drive has 4.4K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Synology Drive's written reviews are positive against 12% of CTEK App's.

UpkeepUpdate frequency

Synology Drive ships an update every 3 months, CTEK App monthly. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Synology Drive versus CTEK App: the parameters behind the verdict, then further details
ParameterSynology DriveCTEK App
PriceFreeFree
Rating4.5 (4.4K ratings) — better2.7 (3 ratings)
Positive reviews33.3% of reviews — better11.9% of reviews
Number of ratings4.4K — better3
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.6 — better
Further details — not scored
Size279 MB29 MB
Age rating4+4+
DeveloperSynology Inc.CTEK Sweden AB

Customer experience

Synology Drive

All ratings4,371 ratings
Positive87.7%
Neutral3.5%
Negative8.7%
Written reviews795 reviews
Positive33.3%
Neutral17.9%
Negative48.8%

CTEK App

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews42 reviews
Positive11.9%
Neutral2.4%
Negative85.7%

Bugs and requests

Synology Drive

Reported bugs

5 issues
  • Unable to log in with 2FA
  • Sync tasks get stuck or fail
  • Folders not showing content
  • Incompatibility with latest iOS versions
  • Duplicated files and folders after sync

Requested features

5 requests
  • Add support for offline folder sync
  • Improve integration with iOS Files app
  • Implement document editing capabilities
  • Add option to customize file/folder naming
  • Enhance audio/video playback features

CTEK App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Synology Drive

No in-app purchases

None

CTEK App

No in-app purchases

Questions

Is Synology Drive free?
Synology Drive is free to download, with no in-app purchases.
Is CTEK App free?
CTEK App is free to download, with no in-app purchases.
Which has better reviews, Synology Drive or CTEK App?
Synology Drive is rated higher. Synology Drive averages 4.5 out of 5 from 4.4K ratings, while CTEK App averages 2.7 from 3 ratings.
Do Synology Drive or CTEK App have ads?
Neither Synology Drive nor CTEK App shows ads.
Which is updated more often, Synology Drive or CTEK App?
Synology Drive ships an update every 3 months, and CTEK App monthly. Most recently, Synology Drive was updated on November 1, 2026 and CTEK App on October 27, 2026.

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