Comparison

ただの電卓 vs Nagi Planner

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

Head to head
About

ただの電卓

Features
Read full description

iPhoneやiPadで使える。多目的な計算機です。 ※機能 機能は計算と多少の公式計算が出来ます。 銀行の金利の計算 消費税の計算 将来の貯金額の計算 株式配当率計算 比例式の計算 などの計算が数値を入力するだけで計算する事ができます。 計算画面広告なし 古い端末でも起動できます。

About

Nagi Planner

Features
Read full description

Nagi Planner is a digital planner for organizing your days and moving forward in your own way. Set your values and personal rules, then break your goals down from 10 years ahead to this week, so that what you do this week connects to the future you truly want. ■ What you can do [Free plan] ・Journal time for reviewing and planning (morning, night, weekend, month-end, every 3 months, year-end) ・Answer journal time questions with the keyboard or by hand ・Schedule (Weekly, Monthly and Yearly; works with your calendar and can notify you of events) ・To-do list (with dates, times, due dates and repeats) and routines (with a timer) ・Plan time (place to-dos on your day's timeline to plan it) ・Memo (handwriting and photos supported; write with Apple Pencil on iPad) ・Notes (organized in notebooks; templates, checklists, tables and cards, plus handwriting, photos and audio recordings) ・For reading notes, scan a book's barcode to fill in the title, author and cover ・Widgets (today's events, to-dos and routines, and buttons that open a screen) ・On Apple Watch, check off and time to-dos and routines ・Part of Insights (how your records change over 1 day, 3 days and 1 week) ・Look back on your journal time [Paid plan] ・Values and personal rules (you can add photos; reviewed in each morning journal time) ・Goals from 10 years ahead down to this week (printable as a single table) ・Projects (in the Schedule, each period shown as a bar, grouped by category, with your calendar events alongside) ・Diary with photos (you can add handwriting too; look back at "today" over the past 10 years) ・A slideshow of your memories, to look back on your favorite photos ・Time-stamped notes, filterable by tag ・To-do and routine logs added to your diary automatically ・Logs for meals, drinks, exercise, medicine and meditation (meditation also works on Apple Watch) ・Plan and actual (compare the plan you made in the morning with the time measured by the timer; shown in night journal time, the diary and the TO-DO log) ・TO-DO log (look back on finished to-dos by date) ・Search in Log (search journal time records, to-dos including their notes, and your diary by text and date) ・Insights (2-week to 1-year periods, choosing dates and periods, and Balance) ・A wish list that brings your future to life (with slideshow) ・A map that colors the places you have been and want to go (with check-ins) ・16 color themes and 20 app icons ■ Your records ・No account required ・Your records are stored only on your device and in your own iCloud ・No ads, analytics or tracking ■ Pricing ・Monthly plan: first 3 days free ・Lifetime plan: buy once and use it forever *See the purchase screen in the app for prices. The monthly plan renews automatically. It renews at the same price unless canceled at least 24 hours before the end of the period. If you cancel at least 24 hours before the free trial ends, you will not be charged. To cancel: open Settings on your device > your name > Subscriptions. Terms of Use (EULA): https://mikiko-app.github.io/nagi/terms.html Privacy Policy: https://mikiko-app.github.io/nagi/privacy.html

Screenshots

ただの電卓3 screens
Nagi Planner4 screens

Verdict

The call

The clearest difference is in-app purchases: ただの電卓 at none against Nagi Planner's 2. ただの電卓 also leads on iOS requirement (12.0 vs 15.0). Nagi Planner's advantage is update cadence (daily vs fortnightly). On price, ads 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. Nagi Planner sells 2 in-app purchases, starting at $4.99 per month. ただの電卓 asks for nothing beyond the download.

UpkeepUpdate frequency

ただの電卓 ships an update fortnightly, Nagi Planner daily. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
ただの電卓 versus Nagi Planner: the parameters behind the verdict, then further details
Parameterただの電卓Nagi Planner
PriceFreeFree
Rating4.3 (3 ratings) — better—
Positive reviews70.0% of reviews—
Number of ratings3 — better—
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.0
Further details — not scored
Size14 MB25 MB
Age rating4+4+
DeveloperHIROKI HORIGUCHIMIKI SHOJI

In-app purchases

None

ただの電卓

No in-app purchases

2 purchases

Nagi Planner

Subscriptions1
  • すべての機能(月額)3 Days trial$4.991 Month
One-time1
  • すべての機能(買い切り)$79.99

Questions

Is ただの電卓 free?
ただの電卓 is free to download, with no in-app purchases.
Is Nagi Planner free?
Nagi Planner is free to download, with in-app purchases available.
Do ただの電卓 or Nagi Planner have ads?
Neither ただの電卓 nor Nagi Planner shows ads.
Which is updated more often, ただの電卓 or Nagi Planner?
ただの電卓 ships an update fortnightly, and Nagi Planner daily. Most recently, ただの電卓 was updated on October 12, 2026 and Nagi Planner on October 24, 2026.

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