Comparison

tes vs ZKeys

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

Head to head
About

tes

Explore and visualize CAN bus data from various vehicles, including electric and gas-powered models. Connect to OBD-2 accessories to view live data, analyze message identifiers, and playback log files. Unlock advanced features for deeper analysis and customization with optional purchases.

Highlights
  • Live CAN bus data visualization
  • Support for OBDLink and vLinker accessories
  • Playback of CAN bus log files
  • Customizable signal visualizations
  • Advanced data analysis tools
  • DBC file import
Features
Read full description

tes•LAX is a CAN bus Explorer and visualization tool that works with CAN data from many sources, including gas-powered and electric vehicles. ** tes•LAX can connect to some OBD-2 accessories to show live CAN Bus data from your vehicle. Additional wiring, and installation is necessary. Damage done to your vehicle may not be covered by vehicle warranty. Proceed at your own risk. ** - Predefined visualizations with many useful signals for several popular electric vehicles. - Designed to analyze and visualize CANBus data with 11-bit message identifiers. - Works with the OBDLink MX+ and CX, vLinker FS/MC+ and WiFi, and other WiFi and Bluetooth Low Energy accessories. "Classic Bluetooth" accessories other than the OBDLink MX+ and vLinker FS are not supported. Please visit https://teslax.app for more information on supported accessories. - Support for accessories supporting the Panda UDP Protocol. Note: Comma.ai has discontinued WiFi support for the Panda White. You may be able to flash your Panda to an old version of firmware to maintain WiFi support. Panda is for advanced users only and not recommended for normal users. - Playback CAN Bus log files. (TXT, ASC and BLF file formats) - Data sources containing multiple buses (ASC/BLF log files, Panda) With an "Extended Release" purchase or subscription: - Configure the visualization by choosing signals from the included signals database. - Additional pages of pre-configured visualization in provided presets. For pros, and tinkerers, an "Extra Strength 2.0" purchase or subscription unlocks additional features: - New in 2.0: Additional full page visualizations such as a Drag Timer, Matrix View, and Graph. - Record log files in TXT, ASC, and BLF formats and convert to comma separated format (CSV) - Create and edit presets. - Modify the signal database to create and update signals as the vehicle manufacturer changes the data format. - Export presets to file for backup/sharing and re-import them. - Ability to import DBC files (containing signal definition information). - A "Binary Matrix" view of a message or signal for reverse engineering data streams. - Use javascript code to calculate a result value from the raw message bytes (or other defined signals within the same message) This software is not affiliated with or endorsed by Tesla Motors or any vehicle manufacturer. This app accesses data streams that are not documented or supported by the vehicle manufacturer. If the manufacturer decides to change the data stream, then this app may display incorrect information. If the manufacturer removes data, then some or all functionality of the app may cease to work. Many signals in the signal database may be from previous versions of the vehicle operating software (such as the cell voltages, which were removed in a software update many updates ago) You are responsible for all risks of installing and using 3rd party hardware in your vehicle. Do not use tes•LAX while driving. Please obey all traffic laws and do not drive while distracted. tes•LAX uses bluetooth and local network access only for the purpose of connecting to accessories. Analytics are not collected at any time. Use caution when using accessories that are not secured via password or pairing. See https://teslax.app/supported-hardware/ for more information. You accept full and unconditional responsibility for the use of this software. All About Jake, LLC is not responsible for any consequences of using this software, including any damage to your vehicle, loss, damage to property, personal injury, or violation of law that may occur in connection with using this application. Obey all laws and respect the privacy of others. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND. The author(s) and copyright holders shall not be liable for any damages, even if advised beforehand of the possibility of such damages. Full terms of use can be found here: https://www.teslax.app/terms-and-conditions/

About

ZKeys

This keyboard app offers advanced autocorrect that understands finger placement and surrounding words to fix typos accurately. It supports multiple languages with dedicated word lists and allows for personalized typing experiences through swipe typing, custom shortcuts, and a learnable prediction engine.

Highlights
  • Advanced autocorrect based on finger placement
  • Support for four languages with dedicated word lists
  • Swipe typing and next-word predictions
  • Customizable shortcuts and symbol hints
  • Full-size iPad layout with dedicated keys
  • Voice dictation and voice memo transcription
  • Nine customizable themes and keyboard styles
Features
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ZKeys is a keyboard that fixes typos the way you make them. Autocorrect looks at where each finger actually landed and at the words around it, so a slip onto a neighbouring key gets fixed while the words you meant stay as you typed them. FOUR LANGUAGES • English, Magyar (Hungarian), Español and العربية (Arabic), each with its own word list, autocorrect and suggestions. Direct access to accent alphabet. • Switch between the layouts you use with one key; turn the rest off TYPE YOUR WAY • Swipe typing: glide across the letters without lifting your finger • Suggestions and next-word predictions that learn the words and phrases you use • Press delete right after a correction to undo it, and ZKeys remembers the word • Your own shortcuts for each language, like "omw" → "On my way!" • Symbol hints on the keys, laid out like a real keyboard. Long-press for accents, flick down on iPad • Optional number row and with shift on, it does ! @ # and friends • Drag along the space bar to move the cursor • Emoji keyboard with recents and skin tones MADE FOR iPAD • A full-size layout like a hardware keyboard: number row, tab, caps lock, and [ ] ; ' , . / in their usual places • Magyar uses the Hungarian keyboard layout with ö ü ó ő ú ű é á í on their own keys LAYOUTS QWERTY, Magyar, Español, Arabic, AZERTY, QWERTZ, Dvorak and Colemak. VOICE • Dictate in the language you're typing in: tap the mic and your words appear in the suggestion bar, then go into your text when you finish • Long-press the mic to record a voice memo and insert its transcript • iOS doesn't let keyboards use the microphone, so ZKeys opens briefly to start listening, then keeps the mic ready in the background for a few minutes while you keep typing YOUR STYLE Nine themes, from System to Midnight, Ocean, Sunset, Forest, Rose and High Contrast. Three keyboard heights, key clicks, haptics and key previews. PRIVATE BY DESIGN ZKeys doesn't send what you type anywhere. The words it learns stay on your device. Allow Full Access is only needed for voice, haptics and syncing settings from the ZKeys app; typing works without it.

Screenshots

tes4 screens
ZKeys4 screens

Verdict

The call

The clearest difference is rating: ZKeys at 5.0 against tes's 4.3. ZKeys also leads on in-app purchases (none vs 8) and update cadence (weekly vs every 3 weeks). tes's advantage is ratings volume (22 vs 1). On price, ads, device support and iOS requirement 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. tes sells 8 in-app purchases, starting at $9.99 per year. ZKeys asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ZKeys holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: tes has 22 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

tes ships an update every 3 weeks, ZKeys weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
tes versus ZKeys: the parameters behind the verdict, then further details
ParametertesZKeys
PriceFreeFree
Rating4.3 (22 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings22 — better1
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size86 MB15 MB
Age rating17+4+
DeveloperAll About Jake, LLCZoltan Homorodi

In-app purchases

8 purchases

tes

Subscriptions1
  • Extra Strength Subscription$9.991 Year
One-time7
  • One-Time Free 5-day PassFree
  • Extra Strength Upgrade to 2.0$4.99
  • Extra Strength Upgrade 1.0$5.99
Show 4 more
  • Extended Release 1.0$6.99
  • Upgrade to Extra Strength 2.0$10.99
  • Extra Strength 1.0$14.00
  • Extra Strength 2.0$18.99
None

ZKeys

No in-app purchases

Questions

Is tes free?
tes is free to download, with in-app purchases available.
Is ZKeys free?
ZKeys is free to download, with no in-app purchases.
Which has better reviews, tes or ZKeys?
ZKeys is rated higher. tes averages 4.3 out of 5 from 22 ratings, while ZKeys averages 5.0 from 1 ratings.
Do tes or ZKeys have ads?
Neither tes nor ZKeys shows ads.
Which is updated more often, tes or ZKeys?
tes ships an update every 3 weeks, and ZKeys weekly. Most recently, tes was updated on November 3, 2026 and ZKeys on October 31, 2026.

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