noteSUM vs Plainchecks
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
noteSUM
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noteSUM is an application that automatically calculates the sum of numerical values entered in a text. You can manage bank balances, total weight, total number of points, etc. by entering them all as single text without having to separate the numerical values from the note. Examples of use: - Credit card usage records - Household account book - Estimates - Salary calculation - Shopping - Pocketbook - Budget - Inventory management - Stock prices, etc. It also numbers extracted from notes are listed, and you can choose to include or exclude them from the total for each number. Other functions: - Record history of notes - Register favorite notes - Text sharing - Setting not to include the date number in the totalizer
Plainchecks
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Plainchecks is a habit tracker built on small daily checks. Just one thing: tap a check when you do the habit. That's it. You decide what counts. One push-up counts if you say it does. Reading one page counts. It's your call. Features โข Tap a habit to check it โข Month and year views โ your checks shown on a calendar โข Daily share card โ a clean summary of today's checks, when you want to post one โข iCloud sync (optional) โ share data across your devices Privacy Only when iCloud sync is on, your data is also stored in your private iCloud. Optional Tip Jar There is a Tip Jar in Settings. It is entirely optional. The app works the same whether you tip or not. For who For people tired of tracking numbers. For people who just want to record whether they did it.
Screenshots
Verdict
The clearest difference is ads: Plainchecks at none against noteSUM's shown. noteSUM's advantage is update cadence (monthly vs every 2 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. noteSUM sells 3 one-off in-app purchases and Plainchecks sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
noteSUM ships an update monthly, Plainchecks every 2 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.
| Parameter | noteSUM | Plainchecks |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly โ better | Every 2 months |
| Ads | Yes | No โ better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 14.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 7 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuhiro Sawamura | SEIRAN SOFT LLC |
In-app purchases
noteSUM
- Number of History records$0.99
- Number of Favorites$0.99
- Hide Ads$2.99
Plainchecks
- Coffee$0.99
- Lunch$2.99
- Dinner$9.99









