Comparison

Solve calculation by cellphone vs VPO

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

Head to head
About

Solve calculation by cellphone

Features
Read full description

【SAT/ACT】 【GMAT】 【CFA】【USCPA】【FE/PE】 ... And so on! A fill-in-the-blanks type learning application specialized for learning calculation problems using a calculator is now available! For certification exams where you want to practice questions using a calculator, this app makes it easy to start learning on your smartphone! With this app, you can take a picture of a reference book, problem set, or explanation with the camera, process it into a fill-in-the-blank format, and start learning right away using the in-app calculator!  Learning method: Two types of learning modes are available: Tap mode and Input mode.  Fill-in-the-blanks mode: Tap to display the filled-in area, with the answer hidden by a fill-in-the-blank.  Input mode: Enter numerical values in the filled-in areas and check your answers at the end.   Fill-in-the-blanks mode is for studying how to solve puzzles easily.   Fill-in-the-blanks mode is for studying in earnest in preparation for the real exam.  You can change the learning method according to your learning steps and time availability.  In-app calculator: In the input mode, you can use the calculator in the app to enter numbers, but it is difficult to type numbers on a calculator on a smartphone.  So, you can register numerical values to fill in the holes  When in tap mode... Tap a fill-in-the-blank and the calculator will instantly reflect the registered numerical value.  In input mode: ...... Tap a fill-in-the-blank to instantly reflect the value you have entered into the calculator.  Reduce the number of times you have to type on the calculator and focus on learning how to solve math problems.  Start learning instantly: Numerical value recognition automatically creates fill-in-the-blanks where you want to hide numbers.  You can also manually add as many fill-in-the-blanks as you like, and change their size and position.  The recognized numerical values are automatically registered as fill-in-the-blanks.  Offline support: Once you create a question in the application, you can study it even without an Internet connection.  (Please note that some functions, such as image recognition, will not be available.) ---------About Subscription Plans--------- In the free version...  △ Create up to 3 questions...  △ Add up to 5 pages per question...  △ Advertisements are displayed at the top of the screen and in other places... Subscribe to our plans  - Unlimited number of questions!  - Unlimited number of additional pages!  - No ads! You can add unlimited questions and pages to your plan without any advertising! (However, if you delete a question or page from the menu, you will not be able to restore it.) You can subscribe to the plan only when you want to add more questions and concentrate on learning. -Restoration when changing the device model When you change your device, you can restore your previously purchased subscription plan for free as long as you are still within the subscription period. -Confirmation and cancellation Open the "Settings" app from your iPhone-> Select Apple ID-> Select "Subscriptions"-> From this screen you can check the next auto-renewal timing and cancel/set auto-renewal. -About auto-renewal billing If you do not cancel the auto-renewal at least 24 hours before the end of the subscription period, the subscription period will be automatically renewed. Auto renewal billing will be performed within 24 hours of the end of the subscription period. -Notes If you have been billed in the application, you cannot cancel by any method other than those listed above. Cancellation of the current month's subscription will not be accepted. Billing is done via your iTunes account. Privacy Policy and Terms of Use Please refer to the link below or from the menu in the application. Privacy Policy https://mutsumi-suzuki-developpage.web.app Terms of Use https://mutsumi-suzuki-developpage.web.app?section=terms

About

VPO

Features
Read full description

VPO(Video+offline)は、対応する教育・研修サービスの動画をiPhoneやiPadに保存し、通信環境のない場所でも視聴できるアプリです。 【主な機能】 ・対応サービスをApp Linkから登録 ・複数動画のダウンロードと進捗管理 ・ダウンロード済み動画のオフライン再生 ・再生速度の変更、シーク、前後動画への移動 ・ピンチズーム、パン、ダブルタップ拡大 ・動画やサービス単位の削除、空き容量の確認 【ご利用について】 本アプリの利用には、VPOに対応したサービスから提供されるApp Linkが必要です。アプリ内で商品購入や会員登録は行いません。

Screenshots

Solve calculation by cellphone4 screens
VPO4 screens

Verdict

The call

The clearest difference is in-app purchases: VPO at none against Solve calculation by cellphone's 1. VPO also leads on ads (none vs shown). Solve calculation by cellphone's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence and device support 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. Solve calculation by cellphone sells 1 in-app purchase, starting at $1.99 per month. VPO asks for nothing beyond the download.

UpkeepUpdate frequency

Solve calculation by cellphone ships an update every 5 days, VPO every 3 days. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 3 level
Solve calculation by cellphone versus VPO: the parameters behind the verdict, then further details
ParameterSolve calculation by cellphoneVPO
PriceFreeFree
Update frequencyEvery 5 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size53 MB31 MB
Age rating4+4+
DeveloperMUTSUMI SUZUKIDigital Knowledge Co.,Ltd.

In-app purchases

1 purchases

Solve calculation by cellphone

Subscriptions1
  • Unlimited number of problems$1.991 Month
None

VPO

No in-app purchases

Questions

Is Solve calculation by cellphone free?
Solve calculation by cellphone is free to download, with in-app purchases available.
Is VPO free?
VPO is free to download, with no in-app purchases.
Do Solve calculation by cellphone or VPO have ads?
Solve calculation by cellphone shows ads; VPO does not.
Which is updated more often, Solve calculation by cellphone or VPO?
Solve calculation by cellphone ships an update every 5 days, and VPO every 3 days. Most recently, Solve calculation by cellphone was updated on October 8, 2026 and VPO on October 21, 2026.

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