Comparison

Byte Calculator vs Deom Mail

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

Head to head
About

Byte Calculator

This utility app performs byte conversions for disk space calculations, supporting units from Bytes to Terabytes. It also offers memory calculation, square root, and percentage functions, with customizable display and key settings. View calculation history and personalize the interface.

Highlights
  • Byte conversion (B, KB, MB, GB, TB)
  • Memory calculation
  • Square root and percentage functions
  • Calculation history view
  • Customizable display and key layout
  • Adjustable decimal places and rounding
Features
Read full description

【What is Byte Calculator】 A major feature is that it supports "Byte conversion", which is used to calculate disk space. It supports 5 units of B, KB, MB, GB, and TB. And, this app provide the most suitable thousands separator, and decimal point expression corresponding to the language setting of your terminal. In addition to this, it supports memory calculation, square root, percentage calculation. This app can view the history of all calculation formulas including byte conversion. Also can swap the positions of the keys freely, and select a color pattern. 【Settable items】 You can make settings for the following items. -Display mode 100÷3=33.333…(abbreviated display) 100÷3=0.33333E02(E notation) -Number of decimal places to display 0~13 -Rounding Round off Round up Round down 【function】 -Vibration ON / OFF at key touch -Sleep ON / OFF on calculation screen 【Key operation】 ・"MRC" key Press once to read from memory, press twice to clear memory ・C key once to Clear only the current state, press twice to clear all. ※For details of byte conversion, please see the hint in the application. Made in Japan. Byte Calculator -byte conv-© CO., LTD. TAS All Rights Reserved

About

Deom Mail

Features
Read full description

Access all your email accounts at once with the univeral account and even search through all accounts at once. Create rich messages with word formatting, lists and more. Unsubscribe from newsletters with one tap. Make yourself at home: Personalize the design, adapt the swipe gestures, create you account specific signatures and much more. Manage email like a pro: forward several messages, forward all attachments of one or several messages, request and sent receipts.

Screenshots

Byte Calculator4 screens
Deom Mail4 screens

Verdict

The call

The clearest difference is iOS requirement: Byte Calculator at 9.0 against Deom Mail's 13.0. 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

Byte Calculator ships an update every 6 weeks, Deom Mail every 3 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

Scorecard1 real difference · 9 level
Byte Calculator versus Deom Mail: the parameters behind the verdict, then further details
ParameterByte CalculatorDeom Mail
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size16 MB38 MB
Age rating4+4+
DeveloperTAS Company Limited.SLNEE.CO

In-app purchases

None

Byte Calculator

No in-app purchases

None

Deom Mail

No in-app purchases

Questions

Is Byte Calculator free?
Byte Calculator is free to download, with no in-app purchases.
Is Deom Mail free?
Deom Mail is free to download, with no in-app purchases.
Do Byte Calculator or Deom Mail have ads?
Neither Byte Calculator nor Deom Mail shows ads.
Which is updated more often, Byte Calculator or Deom Mail?
Byte Calculator ships an update every 6 weeks, and Deom Mail every 3 months. Most recently, Byte Calculator was updated on November 2, 2026 and Deom Mail on October 27, 2026.

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