Comparison

Blue Calc vs Tug Calc

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

Head to head
About

Blue Calc

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A basic calculator for both iPhone and iPad.

About

Tug Calc

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Tug Calc is a calculator that can be connected by sliding. It supports multiple numerical connections, direct correlation of operation results, scientific operations, and rich mathematical charts, including line charts, bar charts, pie charts, polar coordinates, etc. 【Connection Value】 Press and hold the value and drag it to other value positions to complete the connection, and the calculation results will be related to each other after connecting the values, so that you can enter multiple calculations at one time. 【Flexible Labels】 Add tags to the values, the associated values can be modified synchronously, the calculation process is easy to remember, and the operation results are defined by you. 【Rich Charts】 Rich mathematical charts are supported, including line charts, bar charts, pie charts, polar coordinates, etc. Drag and drop values to the specified area to create a new chart, and drag and drop the values to an existing chart to add a plot directly. 【Scientific Computing】 In addition to basic addition, subtraction, multiplication and division operations, the calculator also supports scientific operation mode. Including power exponential operations, logarithmic operations, trigonometric function operations, factorial operations, integer operations, etc. 【Convenient Keyboard】 The software has a built-in convenient computer keyboard, which is tailor-made for calculus, and can quickly complete the calculation and calculation input. 【File Management】 Support operation file management, different operations are saved separately, and the historical record is convenient for backtracking. 【Snapshot Export】 Support program snapshot export, the calculation process is clear at a glance, easy to share, and the results are presented in seconds. 【Paid Membership Features】 - Computing file management - Increased number of cards available - Increased number of available charts 【Activate Paid Membership】 Paid members are available as a subscription or as a permanent activation Membership Service Agreement: https://tugcalc-serviceagreement.mysxl.cn/

Screenshots

Blue Calc2 screens
Tug Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: Blue Calc at none against Tug Calc's 4. Tug Calc's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Tug Calc sells 4 in-app purchases, starting at $0.99 per month. Blue Calc asks for nothing beyond the download.

UpkeepUpdate frequency

Blue Calc ships an update every 3 weeks, Tug Calc every 5 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 4 level
Blue Calc versus Tug Calc: the parameters behind the verdict, then further details
ParameterBlue CalcTug Calc
PriceFreeFree
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.0 — better13.0
Further details — not scored
Size8 MB54 MB
Age rating4+4+
DeveloperRamon Van Elten嘉欣 胡

In-app purchases

None

Blue Calc

No in-app purchases

4 purchases

Tug Calc

Subscriptions3
  • Monthly Subscriptions$0.991 Month
  • Quarterly Subscriptions$0.993 Months
  • Annual Subscription$2.991 Year
One-time1
  • Perpetual Subscription$4.99

Questions

Is Blue Calc free?
Blue Calc is free to download, with no in-app purchases.
Is Tug Calc free?
Tug Calc is free to download, with in-app purchases available.
Do Blue Calc or Tug Calc have ads?
Neither Blue Calc nor Tug Calc shows ads.
Which is updated more often, Blue Calc or Tug Calc?
Blue Calc ships an update every 3 weeks, and Tug Calc every 5 days. Most recently, Blue Calc was updated on October 16, 2026 and Tug Calc on October 13, 2026.

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