Comparison

Mirai Playground vs ChronoCalc Pro

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

Head to head
About

Mirai Playground

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Run the world’s most popular AI models locally. Mirai gives you real-time chat, summarization, and classification powered by ultra-optimized on-device inference. We’re up to 3x faster than existing solutions depending on the task. Designed from the ground up for Apple silicon. No cloud, no delays. Just private, instant AI. Voice and camera-based interaction coming soon.

About

ChronoCalc Pro

Features
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The simplest and most powerful way to calculate time. Perfect for pilots, freelancers, consultants, and anyone who needs to track and calculate hours with precision. FEATURES: - Pro Time Math - Add, subtract, multiply, and divide time values effortlessly. - Live Preview - See the result as you type. Tap = to save it. - Flexible Time Input - Enter time your way: 1h30m, 1:30, or with a comma. The first time you type a comma, you choose what it means: 7,5 as 7h 30m (decimal hours) or as 7h 5m (hours and minutes). - Instant Decimal Conversion - Switch between standard time (1h 30m) and decimal hours (1.50 hrs) right next to the result, with customizable decimal precision. - History - Your last 100 calculations, one tap to reuse a result. On iPad, a full-height history panel grouped by day. Delete single entries or clear it all. - Clear Error Messages - Plain-language hints show what went wrong and which line to fix. - CSV Import/Export - Import time logs or export your calculation history, with a configurable delimiter (comma, semicolon, or tab). Timesheets work in English, Norwegian, Swedish, Danish, German, French, and Spanish. - Quick Copy - Copy the result to your clipboard with a single tap. - Designed for iPhone and iPad - Layouts for portrait and landscape, with Liquid Glass on iOS 26. - Accessible - VoiceOver reads times in whole words and announces every result. Keys support Dynamic Type and the Large Content Viewer, and animations respect Reduce Motion. - Your Language - Available in English, Norwegian, Swedish, Danish, German, French, and Spanish. - Smart & Robust - Handles negative time values and seconds with correct formatting. PERFECT FOR: - Pilots: Logging flight hours and calculating block time. - Freelancers & Consultants: Tracking billable hours and creating invoices. - Project Managers: Calculating project durations and resource timing. - Anyone: Converting time formats, adding up timesheets, or any task that involves time math. No ads. No subscriptions. Your data is 100% private and never leaves your device.

Screenshots

Mirai Playground4 screens
ChronoCalc Pro4 screens

Verdict

The call

Mirai Playground and ChronoCalc Pro are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

ScorecardNo meaningful differences
Mirai Playground versus ChronoCalc Pro: the parameters behind the verdict, then further details
ParameterMirai PlaygroundChronoCalc Pro
PriceFreeFree
Update frequencyβ€”Every 5 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Mac β€” betteriPhone, iPad
Requires iOS18.017.0 β€” better
Further details β€” not scored
Size22 MB4 MB
Age rating4+4+
DeveloperMirai Tech Inc.ERLEND JOHNSRUD VAAGE

In-app purchases

None

Mirai Playground

No in-app purchases

None

ChronoCalc Pro

No in-app purchases

Questions

Is Mirai Playground free?
Mirai Playground is free to download, with no in-app purchases.
Is ChronoCalc Pro free?
ChronoCalc Pro is free to download, with no in-app purchases.
Do Mirai Playground or ChronoCalc Pro have ads?
Neither Mirai Playground nor ChronoCalc Pro shows ads.

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