Comparison

*CalcMemo vs AboutMyDevice

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

Head to head
About

*CalcMemo

Features
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A calculator that remembers what your numbers were for. "Wait, what was this $385 for?" A normal calculator only keeps the answer. CalcMemo puts every calculation into a note, and lets you add a line of text in between. Quotes, budgets, splitting the bill, trip costs: come back later and you can still see what you calculated and why. ■ Made for • Quotes: unit price × quantity, with item names • Budgets: monthly bills in one folder, with a total • Splitting the bill: head count and rounding, all on record • Loans: compare monthly payments and total interest • Due dates: a monthly reminder on the 25th to pay rent ■ Calculator and notes on one screen Notes on top, calculator below. Every "=" adds the expression and answer to the note. Add headings and memos anywhere to keep it readable. Ans button recalls the last answer. ■ Scientific functions and statistics The f(x) tab adds trig, logs, powers, factorial, parentheses and memory (M+ M− MR MC). Select calculations in a note to see their sum, mean, max, min and standard deviation. ■ Money math built in • Loans (including balloon payments) • Loan prepayment simulator (Pro) • Savings plan (Pro) • Compound interest • Profit margin and discounts • Bill splitting with rounding • Sales tax • Date and day counting • Unit conversion (length, weight, temperature, area, volume, speed, fuel economy, time) Save any result to your note in one tap. ■ Reminders and widgets • Note reminders (Pro): once, daily, weekly or monthly. Tap the notification to open the note • Daily reminder: a nudge at the same time every day • Home Screen widgets (Pro): pinned notes, a folder, or one note's answer ■ Organized like a notes app Folders, pinning, grouping by date, reordering, moving between folders, and search across all notes. ■ iPad three-column layout Folders, notes and calculator on one screen, with a calculator you can float anywhere. ■ CalcMemo Pro (one-time purchase) Buy once, keep it forever. No subscription. • Unlimited folders and notes (free: 3 folders, 30 notes) • Lock folders with Face ID • Export notes as PDF or CSV • Savings and prepayment planners with charts • Home Screen widgets • Note reminders ■ Built to be trusted No ads, no account. Your notes stay on your device and are never uploaded. Back up and move to a new phone with JSON export. Available in 16 languages.

About

AboutMyDevice

Get detailed hardware information about your iPhone and iPad, including SOC, network, system, battery, and display specs. Benchmark your device's performance and compare scores with other users. The app prioritizes speed and privacy, with all data processed on-device.

Highlights
  • Detailed hardware specifications
  • SOC performance benchmarking
  • Network speed test
  • System and battery status
  • Display details
  • Customizable section order
  • On-device data processing
Features
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AboutMyDevice shows you exactly what's inside your iPhone and iPad — clearly, instantly, and privately. Plus, benchmark your iPhone and iPad System on a Chip (SoC) single-core and multi-core scores for cross-platform comparison with other AboutMyDevice users. Tap into five sections to see the specs that actually matter, pulled live from your device: • SOC — chip architecture, processor cores, active CPUs, clock speed, cache, and supported instruction sets • Network — interfaces, IPv4 and IPv6 addresses, hostname, plus a built-in speed test for latency, download, and upload • System — iOS version, kernel details, locale, time zone, memory, and storage usage • Battery — charge level, charging state, and Low Power Mode status • Display — logical and physical resolution, pixel ratio, orientation, and light/dark appearance DESIGNED TO BE FAST • Swipe left or right to move between sections, or tap to jump straight to one • Reorder the sections to put what you care about first — your layout is remembered next launch • Copy any section to the clipboard with a single tap • Refresh anytime to re-read live values • Built-in light and dark mode PRIVATE BY DESIGN Information does not leave this device. There are no accounts, no tracking, and no data collection. Everything is read on-device and stays there. Whether you're checking specs before a sale, troubleshooting, comparing devices, or just curious about your hardware, AboutMyDevice gives you the full picture in seconds.

Screenshots

*CalcMemo4 screens
AboutMyDevice4 screens

Verdict

The call

The clearest difference is update cadence: AboutMyDevice at every 3 days against *CalcMemo's weekly. AboutMyDevice also leads on device support (4 vs 2). On price, ads, in-app purchases 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

*CalcMemo ships an update weekly, AboutMyDevice every 3 days. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 7 level
*CalcMemo versus AboutMyDevice: the parameters behind the verdict, then further details
Parameter*CalcMemoAboutMyDevice
PriceFreeFree
Rating—3.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.415.0 — better
Further details — not scored
Size37 MB34 MB
Age rating4+4+
DeveloperTomoyuki FukuzawaRitwik Takkar

In-app purchases

None

*CalcMemo

No in-app purchases

None

AboutMyDevice

No in-app purchases

Questions

Is *CalcMemo free?
*CalcMemo is free to download, with no in-app purchases.
Is AboutMyDevice free?
AboutMyDevice is free to download, with no in-app purchases.
Do *CalcMemo or AboutMyDevice have ads?
Neither *CalcMemo nor AboutMyDevice shows ads.
Which is updated more often, *CalcMemo or AboutMyDevice?
*CalcMemo ships an update weekly, and AboutMyDevice every 3 days. Most recently, *CalcMemo was updated on October 14, 2026 and AboutMyDevice on October 12, 2026.

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