Comparison

Voltrelli vs ZKeys

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

Head to head
About

Voltrelli

Features
Read full description

By scanning the QR code on the station, you can start charging in just a few steps. You can view charging statistics, charging history, a map of Romania with all stations across the country, and much more.

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
Read full description

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

Voltrelli4 screens
ZKeys4 screens

Verdict

The call

The clearest difference is iOS requirement: Voltrelli at 15.1 against ZKeys's 18.0. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

Voltrelli ships an update every 10 days, ZKeys weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
Voltrelli versus ZKeys: the parameters behind the verdict, then further details
ParameterVoltrelliZKeys
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size87 MB15 MB
Age rating4+4+
DeveloperSmart Business & Technologies Solutions SRLZoltan Homorodi

In-app purchases

None

Voltrelli

No in-app purchases

None

ZKeys

No in-app purchases

Questions

Is Voltrelli free?
Voltrelli is free to download, with no in-app purchases.
Is ZKeys free?
ZKeys is free to download, with no in-app purchases.
Do Voltrelli or ZKeys have ads?
Neither Voltrelli nor ZKeys shows ads.
Which is updated more often, Voltrelli or ZKeys?
Voltrelli ships an update every 10 days, and ZKeys weekly. Most recently, Voltrelli was updated on November 3, 2026 and ZKeys on October 31, 2026.

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