# SumsApp vs WaterDrops ー 達成タスクが水に変わりスッキリ！

The clearest difference is in-app purchases: WaterDrops ー 達成タスクが水に変わりスッキリ！ at none against SumsApp's 3. WaterDrops ー 達成タスクが水に変わりスッキリ！ also leads on rating (5.0 vs 4.6) and update cadence (every 2 days vs every 9 days). SumsApp's advantage is ratings volume (169 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. SumsApp sells 3 in-app purchases, starting at $0.99 per month. WaterDrops ー 達成タスクが水に変わりスッキリ！ asks for nothing beyond the download.

WaterDrops ー 達成タスクが水に変わりスッキリ！ holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: SumsApp has 169 ratings behind it against 1, so its average is the more settled of the two.

SumsApp ships an update every 9 days, WaterDrops ー 達成タスクが水に変わりスッキリ！ every 2 days. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SumsApp | WaterDrops ー 達成タスクが水に変わりスッキリ！ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (169 ratings)](https://appshunter.io/ios/app/sumsapp/id989345503/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/waterdrops/id1515123047/reviews)** |
| Number of ratings | **169** | 1 |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 250 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Niwa](https://appshunter.io/developer/888556976) | [takanori hosoi](https://appshunter.io/developer/642106741) |

## What reviewers say

### SumsApp

[App page](https://appshunter.io/ios/app/sumsapp/id989345503)

This smart notepad automatically detects numbers within your notes and calculates their totals. Organize notes into folders for combined totals and use advanced search to filter and sum specific entries. It's a calculator and spreadsheet replacement for everyday number tracking.

**Highlights:** Automatic number detection, Automatic total calculation, Notes organization into folders, Combined folder totals, Advanced search and filtering, Freestyle note-taking with numbers

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Every 6 Months | $4.49 | per 6 months |
| Yearly Subscription | $7.99 | per year |

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Ingenious concept for calculations
- 🚀 Efficient for quick math
- 👍 Useful for expense tracking
- 👍 Great for financial management

**What reviewers complain about**

- 😞 Aggressive subscription prompts
- 😞 Data loss and deletion issues
- 😞 Paid for app, now locked out
- 😞 Frequent pop-ups for Pro upgrade
- 😞 Unreliable data saving

**Reported bugs**

- Data is deleted/lost
- App crashes after recent update
- Pop-up prompts for Pro version appear constantly
- Restore purchase does not work
- Information entered disappears

**Requested features**

- Add '+' and '÷' symbols to number bar
- Option to sync Mac version
- Ability to group files for 'Totals' figure
- Button to add date stamp
- Option to automatically display date in notes


### WaterDrops ー 達成タスクが水に変わりスッキリ！

[App page](https://appshunter.io/ios/app/waterdrops/id1515123047)

Visualize your daily actions and achievements to gamify task completion. This app helps you break down future goals into simple, manageable steps, guiding you to execute them with focus.

**Highlights:** Visualize actions and achievements, Gamified task completion, Break down goals into simple steps, Focus on immediate actions, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SumsApp free?

SumsApp is free to download, with in-app purchases available.

### Is WaterDrops ー 達成タスクが水に変わりスッキリ！ free?

WaterDrops ー 達成タスクが水に変わりスッキリ！ is free to download, with no in-app purchases.

### Which has better reviews, SumsApp or WaterDrops ー 達成タスクが水に変わりスッキリ！?

WaterDrops ー 達成タスクが水に変わりスッキリ！ is rated higher. SumsApp averages 4.6 out of 5 from 169 ratings, while WaterDrops ー 達成タスクが水に変わりスッキリ！ averages 5.0 from 1 ratings.

### Do SumsApp or WaterDrops ー 達成タスクが水に変わりスッキリ！ have ads?

Neither SumsApp nor WaterDrops ー 達成タスクが水に変わりスッキリ！ shows ads.

### Which is updated more often, SumsApp or WaterDrops ー 達成タスクが水に変わりスッキリ！?

SumsApp ships an update every 9 days, and WaterDrops ー 達成タスクが水に変わりスッキリ！ every 2 days. Most recently, SumsApp was updated on October 19, 2026 and WaterDrops ー 達成タスクが水に変わりスッキリ！ on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*