Comparison

StarHi vs ReadableCalc

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

Head to head
About

StarHi

Features
Read full description

StarHi is a practical astronomy app that helps you to explore the starry sky. You can mount your phone on a telescope and use the app to help the telescope accurately locate celestial bodies with some simple settings. The app utilizes your phone's time, location, and sensor information to determine the positions of the moon, planets, stars, deep space objects, and constellations in the night sky. Additionally, it provides basic information about various celestial bodies. Main Features: 1. Ensures that the starry sky displayed on the mobile phone matches what is seen through the telescope. 2. Displays the direction in which the telescope is pointing. 3. Simulates the visual fields observed by telescopes of different magnifications and structures. 4. Helps novice astronomers identify and locate celestial objects in the vast night sky. 5. Simulates the starry sky in real-time or at a time and place set by the user. StarHi is a new astronomical application. Compared to other star-finding software, StarHi uses a new algorithm that makes the starry sky displayed on the phone screen consistent with what is seen through the telescope with simple settings. Users can use the app's celestial body information and screen icons to align the telescope with the celestial body they want to observe. Download StarHi now and start your celestial adventure.

About

ReadableCalc

Features
Read full description

ReadableCalc is a calculator app that displays large numbersβ€”like 3 trillion 500 billionβ€”in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features β€’ Supports four basic operations (+, βˆ’, Γ—, Γ·) β€’ Displays results in English numeric units for easy readability β€’ Handles decimals and negative numbers β€’ DEL button for deleting one character at a time (Long press to clear the entire expression) β€’ Long press on expressions or results to copy β€’ Tap on the β€œreadable” result to toggle display between: β€’ Short scale / Long scale / Kanji numerals Additional features in landscape mode: β€’ β€œ00”, β€œ000”, and β€œ0000” buttons for quickly adding zeros β€’ β€œx²” and β€œx³” buttons for quick exponentiation Note: β€’ Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. β€’ Short scale and Long scale support numbers up to 10^198. β€’ Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.

Screenshots

StarHi4 screens
ReadableCalc3 screens

Verdict

The call

The clearest difference is update cadence: StarHi at daily against ReadableCalc's weekly. On price, ads, in-app purchases and device support there is nothing between them.

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.

UpkeepUpdate frequency

StarHi ships an update daily, ReadableCalc weekly. Both last shipped on October 25, 2026.

Scorecard1 real difference Β· 5 level
StarHi versus ReadableCalc: the parameters behind the verdict, then further details
ParameterStarHiReadableCalc
PriceFreeFree
Update frequencyDaily β€” betterWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details β€” not scored
Size205 MB28 MB
Age rating4+4+
Developerθͺ ε­™YONAGARE LAB

In-app purchases

None

StarHi

No in-app purchases

None

ReadableCalc

No in-app purchases

Questions

Is StarHi free?
StarHi is free to download, with no in-app purchases.
Is ReadableCalc free?
ReadableCalc is free to download, with no in-app purchases.
Do StarHi or ReadableCalc have ads?
Neither StarHi nor ReadableCalc shows ads.
Which is updated more often, StarHi or ReadableCalc?
StarHi ships an update daily, and ReadableCalc weekly. Most recently, StarHi was updated on October 25, 2026 and ReadableCalc on October 25, 2026.

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