Comparison

Memorandum vs Calculator+

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

Head to head
About

Memorandum

Securely store and manage all your important information, including IDs and passwords, in one place. Access your data with a simple 4-digit PIN and sync across devices using iCloud. Back up your information for peace of mind.

Highlights
  • Store IDs and passwords
  • 4-digit PIN access
  • iCloud sync across devices
  • Data backup and retrieval
  • Manage various information types
Read full description

"Memorandum - Password Manager" is a memorandum tool that can record information that must be remembered, including IDs and passwords that are required in various situations. Just remember the 4 digit number to access the app. You can manage information that continues to grow by just that. Any information such as SNS, net shop, homepage, certificate, credit card, bank, game, app, mail, network etc can be recorded simply. Since iCloud is compatible, even if you have multiple devices, you can share the same information and you can use it very conveniently. (You will need to use the same PIN code when sharing data via iCloud on multiple devices) It is also possible to retrieve data for backup. You can prepare for the case of getting by merely acquiring the files in the shared folder through iTunes and backing up entirely. The reason for developing this application is because there was no application that will explain where important information is stored. This application was born because the developer wanted an application that can be recorded with peace of mind. In addition, we assume that no responsibility will be incurred in us any trouble using this application. It will be encouraging if you can highly appreciate the ability to continue developing and improving functions in the future.

About

Calculator+

Features
Read full description

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Screenshots

Memorandum4 screens
Calculator+3 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator+ at none against Memorandum's 7. Calculator+ also leads on ads (none vs shown). Memorandum's advantage is update cadence (every 6 weeks vs every 9 months) and iOS requirement (12.0 vs 16.0). On price and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Memorandum sells 7 one-off in-app purchases. Calculator+ asks for nothing beyond the download.

UpkeepUpdate frequency

Memorandum ships an update every 6 weeks, Calculator+ every 9 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

Scorecard4 real differences Ā· 4 level
Memorandum versus Calculator+: the parameters behind the verdict, then further details
ParameterMemorandumCalculator+
PriceFreeFree
Positive reviews46.0% of reviews—
Update frequencyEvery 6 weeks — betterEvery 9 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size6 MB5 MB
Age rating4+4+
DeveloperBistro ISAKIn1system ltd.

In-app purchases

7 purchases

Memorandum

One-time7
  • 17 items use license$0.99
  • 20 items use license$0.99
  • 8 items use license$1.99
Show 4 more
  • 11 items use license$1.99
  • 14 items use license$1.99
  • Ad delete license$3.99
  • Ver.1 Pro License$4.99
None

Calculator+

No in-app purchases

Questions

Is Memorandum free?
Memorandum is free to download, with in-app purchases available.
Is Calculator+ free?
Calculator+ is free to download, with no in-app purchases.
Do Memorandum or Calculator+ have ads?
Memorandum shows ads; Calculator+ does not.
Which is updated more often, Memorandum or Calculator+?
Memorandum ships an update every 6 weeks, and Calculator+ every 9 months. Most recently, Memorandum was updated on October 24, 2026 and Calculator+ on October 15, 2026.

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