Comparison

TimeZone Carousel vs KeyFlow AI

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

Head to head
About

TimeZone Carousel

Visually represent and manage multiple time zones with a horizontal slider for easy scheduling. Plan international meetings accurately by accounting for daylight saving time and date changes.

Highlights
  • Visual time zone representation
  • Horizontal time slider
  • Add and manage locations
  • Daylight Saving Time awareness
  • Offline support
  • Dark mode
Features
Read full description

TimeZone Carousel is an innovative visual representation of time across different timezones. Horizontal slider effect allows you to quickly choose a time and date that works for everybody, no matter where they are located. Now, it's finally easy to schedule your next international conference without problems and mistakes. Features: - Add places by searching for a nearby city; - Rename places to easily identify them; - Swipe left and right to pick the right time; - Morning, Evening and Night color highlights; - Date Selection: to make sure a future schedule is correct even if DST changes somewhere; - DST awareness: it will highlight if there is a time change in the selected date; - Remove and Reorder places; - Dark mode; - Time and Date format selection; - Time Step: 10, 15, 30 minutes and 1 hour; - Column Numbers: allows you to define how many time slots you can see; Our App uses the official TimeZone Database and has offline support for the next 10 years. It's available on iPhone and iPad with Landscape and Portrait support. We are actively maintaining the App and will introduce many new features. If you have a feature suggestion, please feel free to reach out.

About

KeyFlow AI

Enhance your writing with an AI-powered keyboard. Instantly rewrite messages in different tones, fix grammar, translate languages, and dictate with accurate transcription. Save frequently used phrases and replay past actions seamlessly within any app.

Highlights
  • Rewrite messages with different tones
  • Instant spelling and grammar correction
  • Translate to over 50 languages
  • Whisper-powered dictation
  • Save and reuse text snippets
  • Replay recent actions
Features
Read full description

KeyFlow AI is the keyboard that writes with you. One tap rewrites your message in a better tone. Another fixes the grammar. A third translates it into any of 50+ languages. All of it happens right inside whatever app you're in, no switching, no copying, no interruptions. What KeyFlow AI can do: • Rewrite with a different tone — professional, casual, friendly, or formal • Fix spelling and grammar instantly • Translate to 50+ languages • Dictate with Whisper-powered transcription — remarkably accurate • Save snippets for phrases you type again and again • Replay recent actions without retyping Your key. Your data. KeyFlow AI connects directly to your OpenAI account. Your API key stays on your device — nothing is stored on our servers. A note on permissions: Allow Full Access is required for AI features. Microphone is only used when you start Dictation. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lumozz.com/privacy

Screenshots

TimeZone Carousel4 screens
KeyFlow AI4 screens

Verdict

The call

The clearest difference is rating: KeyFlow AI at 5.0 against TimeZone Carousel's 4.0. TimeZone Carousel's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price, ratings volume, update cadence and ads 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. KeyFlow AI sells 3 in-app purchases, starting at $4.99 per month. TimeZone Carousel asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

KeyFlow AI holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

TimeZone Carousel ships an update every 3 weeks, KeyFlow AI fortnightly. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard5 real differences · 5 level
TimeZone Carousel versus KeyFlow AI: the parameters behind the verdict, then further details
ParameterTimeZone CarouselKeyFlow AI
PriceFreeFree
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.4 — better18.0
Further details — not scored
Size13 MB19 MB
Age rating12+4+
DeveloperTakeRoll LLCLumozz

Customer experience

TimeZone Carousel

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KeyFlow AI

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

In-app purchases

None

TimeZone Carousel

No in-app purchases

3 purchases

KeyFlow AI

Subscriptions2
  • KeyFlow Pro$4.991 Month
  • KeyFlow Pro$39.991 Year
One-time1
  • KeyFlow BYOK Lifetime$14.99

Questions

Is TimeZone Carousel free?
TimeZone Carousel is free to download, with no in-app purchases.
Is KeyFlow AI free?
KeyFlow AI is free to download, with in-app purchases available.
Which has better reviews, TimeZone Carousel or KeyFlow AI?
KeyFlow AI is rated higher. TimeZone Carousel averages 4.0 out of 5 from 1 ratings, while KeyFlow AI averages 5.0 from 1 ratings.
Do TimeZone Carousel or KeyFlow AI have ads?
Neither TimeZone Carousel nor KeyFlow AI shows ads.
Which is updated more often, TimeZone Carousel or KeyFlow AI?
TimeZone Carousel ships an update every 3 weeks, and KeyFlow AI fortnightly. Most recently, TimeZone Carousel was updated on October 1, 2026 and KeyFlow AI on September 30, 2026.

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