Sum List vs Flatwise
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sum List
Read full descriptionHide full description
Create lists with quantities, calculate the sum: - Simple table for budget or any similar calculation. - User can choose a currency, measurement or custom unit - Marking of completed items is possible. Folder structure for easy organizing - On device folders are used for storing lists. - Lists can be created in a folder or without a folder. - Lists can be duplicated, moved or deleted. - Deleted lists can be recovered from Recently Deleted folder. - iCloud folders enabled in-app-purchases. - iCloud folders are private, and can be accessed by only the user. They can be accessed by only the devices using the same Apple ID. List structure - Contains rows - Each row is formed of a title and and a multiplication of two quantities. - Rows can be marked as complete. List has a title and notes section. - Title can be edited. - Notes about the list can be entered. Notes can be shown or hidden. - Decimal places shown is 2 by default, but can be adjusted. - Calculations can be hid, only title and a value can be shown at each row for simplicity. - At the bottom, the sum of all list items is shown. - The sum can be copied to clipboard. - The list can be exported as a CSV file in the share menu.
Flatwise
Read full descriptionHide full description
Flatwise helps you organize everyday tasks, events, and shared expenses β on your own, as a couple, or in a group. YOUR DAY AT A GLANCE The new Home feed brings together tasks, events, and outstanding balances. See whatβs on today, whatβs overdue, and whatβs coming next. STAY ON TOP OF TASKS Plan tasks with due dates and repeat schedules, assign them to members, and keep track of what still needs to be done. PLAN EVENTS TOGETHER Organize personal and shared events with repeats and reminders. Switch between month, day, and list views, and choose which groups and people you want to see. GET ORGANIZED TOGETHER Create private groups for your partner, housemates, or friends. Invite others with a link, QR code, or invitation code. Shared tasks, events, and expenses stay synced across members. SPLIT EXPENSES FAIRLY Record who paid and how you want to split the costs. Keep track of expenses, outstanding amounts, and recorded repayments. Clear balance breakdowns show you how each amount is calculated. Optional debt simplification makes settling up within your group easier. MAKE FLATWISE YOUR OWN Choose the features you want to use: tasks, events, and expenses can be combined independently. MORE WITH FLATWISE PLUS Connect Apple Calendar to view and edit existing events directly in Flatwise. Export Flatwise events and selected tasks to Apple Calendar, and use widgets for a quick overview. Flatwise Plus is available as a one-time in-app purchase β no subscription.
Screenshots
Verdict
The clearest difference is price: Flatwise at Free against Sum List's $1.99. Flatwise also leads on update cadence (every 8 days vs every 3 months). Sum List's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Flatwise is free to download; Sum List costs $1.99 up front. Sum List sells 1 one-off in-app purchase and Flatwise sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sum List ships an update every 3 months, Flatwise every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Sum List | Flatwise |
|---|---|---|
| Price | $1.99 | Free β better |
| Update frequency | Every 3 months | Every 8 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 1 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Erdem Met | Lukas Kamm |
In-app purchases
Sum List
- iCloud Extension$1.99
Flatwise
- Flatwise Plus$1.99









