Calculator Classic Basic vs Keisan Memo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Classic Basic
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Get back to basics with Calculator Classic, the perfect app for quick and accurate calculations. Designed with simplicity in mind, this app offers a clean, intuitive interface that makes everyday math effortless. Whether you're balancing your budget, solving homework, or splitting a bill, Calculator Classic has you covered. Key Features: Basic Operations: Add, subtract, multiply, divide, and calculate percentages with ease. Clear Display: Large, easy-to-read numbers and a user-friendly layout. Memory Functions: Store and recall values for seamless calculations. Responsive Design: Works flawlessly on all iOS devices, from iPhone to iPad. Perfect for students, professionals, or anyone who needs a dependable calculator without the clutter of advanced features. Download Calculator Classic today and make math simple again!
Keisan Memo
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Stop bouncing between a calculator and your notes. Keisan Memo is a text calculator. Write “lunch 1,200 × 3” in a note and “3,600” appears at the end of the line as you type. Edit the numbers and every result updates. - NATURAL WRITING: labels and math share the same line. - JAPANESE-NATIVE: supports Japanese numerals, consumption tax phrases, and percentage discounts. - TOTALS & VARIABLES: write 合計 to sum previous lines or define reusable values. - UNIT CONVERSION: convert length, weight, and time inline. - EXACT DECIMAL MATH: 0.1 + 0.2 is exactly 0.3. - FREE AND UNLIMITED: notes, lines, templates, and text/CSV export have no paywall. - ON-DEVICE NOTES: calculations and note storage stay on the device. Note contents are not sent to the advertising provider. The free app displays one adaptive banner at the bottom. A ¥100 / $0.99 non-consumable purchase permanently removes the banner. It is a one-time purchase with no subscription and no automatic renewal. Ad delivery uses Google AdMob and an internet connection; advertising identifier use follows your iOS tracking permission. Note: results are estimates for personal memos and are not accounting, tax, or legal advice.
Screenshots
Verdict
The clearest difference is in-app purchases: Calculator Classic Basic at none against Keisan Memo's 1. Calculator Classic Basic also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, update cadence and ads 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
Both are free to download. Keisan Memo sells 1 one-off in-app purchase. Calculator Classic Basic asks for nothing beyond the download.
Calculator Classic Basic ships an update every 5 days, Keisan Memo weekly. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.
| Parameter | Calculator Classic Basic | Keisan Memo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Weekly |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Matrix Software Co. | 丽佳 施 |
In-app purchases
Calculator Classic Basic
No in-app purchases
Keisan Memo
- Remove Ads (Lifetime)$0.99
Questions
Is Calculator Classic Basic free?
Is Keisan Memo free?
Do Calculator Classic Basic or Keisan Memo have ads?
Which is updated more often, Calculator Classic Basic or Keisan Memo?
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