Comparison

Good value calculator vs TANK TINKER

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

Head to head
About

Good value calculator

Features
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This app was designed for use in Japan based on Japanese law. When you shopping, Is there anything confusing which is good value different weight or different capacity? Do not have any concerns as to how much difference there is with the same capacity? Have you ever wondered how much you earn for mileage? Good value calculator resolves the confusion as below. 550ml 368yen, 430ml 265yen 450mlx3 594yen, 430ml 265yen tax-excluded price 98, tax-included price 104 100yen with discount amount 20yen, 100yen with discount rate 20% 100yen with discount rate 50%, with mileage 50% If you convert it to the same capacity and quantity as the profitable one, it will show you how much you will saved. Mileage can be calculated considering the overall multiplication factor. For example, compare the case where 50% discount and 50% mileage are given at 1000 yen including tax. First one is 167yen saved. 1st one is a discount of 50% at 1000 yen is 500 yen. 2nd one is 666.7 yen. This is given 500 miles for 1000 yen, so we thought that it cost 1,000 yen to buy a thing of 1500 yen It is 1000 ÷ (1000 + 500) as the overall multiplication rate 2/3, 66.67% Actually pay product price multiplied by 1000 yen will be the 'Converted price including tax' in consideration of the overall multiplication rate. So, that's why 666.7 yen. When purchasing next by the miles you received, mileage is not given often. In that case we recomend. If you consider mileage discount as it is, it is an answer that you wanted by calculating it as discount and discount rate without thinking hard. If you think that it is a discount for a mileage as it is, it will be the answer you wanted by calculating as a discount amount or discount rate. I hope this app will help save your living expenses. This app uses the internet access to display the ads and analyze. Exception clause Please note that the calculation results may differ depending on the calculation order, method, fractional processing, error, way of thinking of the place actually purchased, mistakes of the program, etc. Please be aware. The first sales tax setting is set to 8% sales tax in Japan. If you would like to calculate with a different tax rate, change the tax rate, when reinstalling etc., please set your own tax rate and use. I assume no responsibility whatsoever for any damages resulting from the use of this app. Thanks In creating this application, I used the free material of site below. Thank you very much. irasutoya http://www.irasutoya.com/ This app contains Apache License Version 2.0 code. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0

About

TANK TINKER

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A multi-label pet boutique based in Bangkok, Thailand. The company was founded when the owners were looking for unique and high-quality products for their six-month-old Frenchie, Tank. The goal is three-fold: to provide premium quality products that make both owners and their pets cooler, to ensure the comfort, safety, and support of pets, and to create an exciting shopping experience for pet owners. The company's mission is embodied in the tagline, "DOGs Gear Thailand."

Screenshots

Good value calculator4 screens
TANK TINKER4 screens

Verdict

The call

The clearest difference is ads: TANK TINKER at none against Good value calculator's shown. Good value calculator's advantage is update cadence (every 3 months vs every 6 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Good value calculator ships an update every 3 months, TANK TINKER every 6 months. The most recent releases landed on September 5, 2026 and December 20, 2025 respectively.

Scorecard2 real differences · 4 level
Good value calculator versus TANK TINKER: the parameters behind the verdict, then further details
ParameterGood value calculatorTANK TINKER
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 6 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better13.0
Further details — not scored
Size28 MB166 MB
Age rating12+4+
DeveloperYukihiro MoritaMostwell Limited

In-app purchases

None

Good value calculator

No in-app purchases

None

TANK TINKER

No in-app purchases

Questions

Is Good value calculator free?
Good value calculator is free to download, with no in-app purchases.
Is TANK TINKER free?
TANK TINKER is free to download, with no in-app purchases.
Do Good value calculator or TANK TINKER have ads?
Good value calculator shows ads; TANK TINKER does not.
Which is updated more often, Good value calculator or TANK TINKER?
Good value calculator ships an update every 3 months, and TANK TINKER every 6 months. Most recently, Good value calculator was updated on September 5, 2026 and TANK TINKER on December 20, 2025.

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