SimpleSigma+ vs Todoスケジュール
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleSigma+
This app simplifies numerical tabulation with three distinct spreadsheet types for various calculation needs. It offers quick data input, immediate recalculation, and convenient features like CSV import/export and tax settings.
- Three spreadsheet types (Simple, Duplex, Shopping)
- Quick data input and immediate recalculation
- Swipeable keyboard for cell navigation
- Customizable consumption tax settings
- Save and reuse calculation data
- CSV data import and export
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"SimpleSigma+” easily totals numerical values in a table. You don't need to input extra data, so you can quickly input values only and get the calculation result. Its function and characteristics are ————————- 3 types of spreadsheet [Simple] -- Sum of simple numbers [Duplex] -- Enter and calculate the quantity for each value too [Shopping] -- Enter quantity and consumption tax for each value too and calculate Swipe the keyboard to quickly move the active cell. Each time you tap the key, it will be recalculated so you can see the result immediately. Initial setting of consumption tax is possible. Saving and reusing each calculation data. Data import and export in CSV format. ————————- Enjoy the maximum comfort with a simple and easy-to-understand interface. "SimpleSigma +" does not display advertisements. It can be used in full screen. There is also a free version "SimpleSigma" that displays advertisements.
Todoスケジュール
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1日の予定をやることを時間で管理！ ◆こんな人におすすめ◆ 「今日やらないといけないことを一覧で見たい」 「Todoを時間で管理したい」 「やり残したことをすぐに見つけて解消したい」 ◆できること◆ ◇1日の予定とTodoを一覧で把握 ◇時間と共にTodoを入力し、何時に何をやるべきかわかる ◇やり残したことがあってもすぐに把握
Screenshots
Verdict
The clearest difference is price: Todoスケジュール at Free against SimpleSigma+'s $3.99. SimpleSigma+'s advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases, device support 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
Todoスケジュール is free to download; SimpleSigma+ costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SimpleSigma+ ships an update every 3 weeks, Todoスケジュール every 3 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.
| Parameter | SimpleSigma+ | Todoスケジュール |
|---|---|---|
| Price | $3.99 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | MUTSUAKI KIKUCHI | Taichi Terasaki |
In-app purchases
SimpleSigma+
No in-app purchases
Todoスケジュール
No in-app purchases
